init
This commit is contained in:
gfuse
@@ -0,0 +1,4 @@
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__kernel void double_add(__global const double* A, __global const double* B, __global double* C) {
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int index = get_global_id(0);
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C[index] = A[index] + B[index];
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};
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@@ -0,0 +1,72 @@
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// Copyright (C) 2011 Dmitri Nikulin
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// Copyright (C) 2011 Monash University
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//
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// Permission is hereby granted, free of charge, to any person
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// obtaining a copy of this software and associated documentation
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// files (the "Software"), to deal in the Software without
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// restriction, including without limitation the rights to use,
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// copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following
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// conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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// OTHER DEALINGS IN THE SOFTWARE.
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kernel void fast_best(
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read_only image2d_t scores,
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global int2 * corners,
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global int2 * filtered,
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global int * icorner
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) {
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// Prepare a suitable OpenCL image sampler.
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sampler_t const sampler = CLK_ADDRESS_CLAMP | CLK_FILTER_NEAREST;
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// Use global work item as 1D offset into corners.
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int const ic = get_global_id(0);
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int2 const xy = corners[ic];
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// Read the candidate score.
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int const p00 = read_imageui(scores, sampler, xy).x;
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// Read other scores in a tight square around the candidate score.
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int const p01 = read_imageui(scores, sampler, xy + (int2)(-1, -1)).x;
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int const p02 = read_imageui(scores, sampler, xy + (int2)( 0, -1)).x;
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int const p03 = read_imageui(scores, sampler, xy + (int2)( 1, -1)).x;
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int const p04 = read_imageui(scores, sampler, xy + (int2)(-1, 0)).x;
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int const p05 = read_imageui(scores, sampler, xy + (int2)( 0, 0)).x;
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int const p06 = read_imageui(scores, sampler, xy + (int2)( 1, 0)).x;
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int const p07 = read_imageui(scores, sampler, xy + (int2)(-1, 1)).x;
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int const p08 = read_imageui(scores, sampler, xy + (int2)( 0, 1)).x;
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int const p09 = read_imageui(scores, sampler, xy + (int2)( 1, 1)).x;
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// Select the maximum score.
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int sco = p00;
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sco = max(sco, p01);
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sco = max(sco, p02);
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sco = max(sco, p03);
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sco = max(sco, p04);
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sco = max(sco, p05);
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sco = max(sco, p06);
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sco = max(sco, p07);
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sco = max(sco, p08);
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sco = max(sco, p09);
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// Keep this score if it is as good as the maximum.
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if (p00 >= sco) {
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// Atomically append to filtered corner buffer.
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filtered[atom_inc(icorner)] = xy;
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}
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}
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@@ -0,0 +1,80 @@
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// Copyright (C) 2021 Majid Geravand
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// Copyright (C) 2021 Gfuse
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__kernel void fast_gray(
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__read_only image2d_t image,
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__global int2 * corners,
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__global int * icorner,
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int fast_count
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) {
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// Prepare a suitable OpenCL image sampler.
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sampler_t const sampler = CLK_ADDRESS_CLAMP | CLK_FILTER_NEAREST;
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// Use global work item as 2D image coordinates.
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int const x = get_global_id(0);
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int const y = get_global_id(1);
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if(x>16 && x<get_image_width(image)-16 && y<get_image_height(image)-16 && y>16){
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int2 const xy = (int2)(x, y);
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// Read the candidate pixel.
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int const p00 = read_imageui(image, sampler, xy).x;
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// Read other pixels in a circle around the candidate pixel.
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int const p01 = read_imageui(image, sampler, xy + (int2)( 0, 3)).x;
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int const p05 = read_imageui(image, sampler, xy + (int2)( 3, 0)).x;
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int const p09 = read_imageui(image, sampler, xy + (int2)( 0, -3)).x;
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int const p13 = read_imageui(image, sampler, xy + (int2)(-3, 0)).x;
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// Check the absolute difference of each circle pixel.
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int const d01 = (abs(p01 - p00) > FAST_THRESH);
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int const d05 = (abs(p05 - p00) > FAST_THRESH);
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int const d09 = (abs(p09 - p00) > FAST_THRESH);
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int const d13 = (abs(p13 - p00) > FAST_THRESH);
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// Check if any two adjacent circle pixels have a high absolute difference.
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if ((d01 && d05) ||(d05 && d09) ||(d09 && d13) ||(d13 && d01)) {
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// Read other pixels in a circle around the candidate pixel.
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int const p02 = read_imageui(image, sampler, xy + (int2)( 1, 3)).x;
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int const p03 = read_imageui(image, sampler, xy + (int2)( 2, 2)).x;
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int const p04 = read_imageui(image, sampler, xy + (int2)( 3, 1)).x;
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int const p06 = read_imageui(image, sampler, xy + (int2)( 3, -1)).x;
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int const p07 = read_imageui(image, sampler, xy + (int2)( 2, -2)).x;
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int const p08 = read_imageui(image, sampler, xy + (int2)( 1, -3)).x;
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int const p10 = read_imageui(image, sampler, xy + (int2)(-1, -3)).x;
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int const p11 = read_imageui(image, sampler, xy + (int2)(-2, -2)).x;
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int const p12 = read_imageui(image, sampler, xy + (int2)(-3, -1)).x;
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int const p14 = read_imageui(image, sampler, xy + (int2)(-3, 1)).x;
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int const p15 = read_imageui(image, sampler, xy + (int2)(-2, 2)).x;
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int const p16 = read_imageui(image, sampler, xy + (int2)(-1, 3)).x;
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// Select the maximum score.
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int sco = p00;
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sco = max(sco, p01);
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sco = max(sco, p02);
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sco = max(sco, p03);
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sco = max(sco, p04);
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sco = max(sco, p05);
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sco = max(sco, p06);
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sco = max(sco, p07);
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sco = max(sco, p08);
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sco = max(sco, p09);
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sco = max(sco, p10);
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sco = max(sco, p11);
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sco = max(sco, p12);
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sco = max(sco, p13);
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sco = max(sco, p14);
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sco = max(sco, p15);
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// Keep this score if it is as good as the maximum.
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if (p00 >= sco) {
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// Atomically append to corner buffer.
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int const icorn = atom_inc(icorner);
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if (icorn < fast_count)
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corners[icorn] = xy;
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}
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}
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}
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}
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@@ -0,0 +1,4 @@
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__kernel void int_add(__global const int* A, __global const int* B, __global int* C) {
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int index = get_global_id(0);
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C[index] = A[index] + B[index];
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};
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@@ -0,0 +1,372 @@
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__kernel void is_corner_10_greater(__global const unsigned char* img,__global const int* x,__global const int* y, int2 image_stride, int wight, short barrier,__global unsigned char* condition) {
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/*
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int x_id=x[get_global_id(0)];
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int y_id=y[get_global_id(1)];
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printf("%d, %d \n",x_id,y_id);
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int px=y_id*image_stride+x_id;
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int w3 = 3*image_stride;//3*image_stride
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/*
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int t = (img[px] << 8) | img[px+1] - barrier;
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if (!img[px-1-w3]>t) {
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if (!img[px+3+image_stride]>t) {
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condition[y_id*wight+x_id]=0;
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}
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if (!img[px+2+2*image_stride]>t) {
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condition[y_id*wight+x_id]=0;
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}
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if (!img[px-1+w3]>t) {
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condition[y_id*wight+x_id]=0;
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}
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if (!img[px+1+w3]>t) {
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condition[y_id*wight+x_id]=0;
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}
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if (!img[px+w3]>t) {
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condition[y_id*wight+x_id]=0;
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}
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if (!img[px-2+2*image_stride]>t) {
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if (!img[px-w3]>t) {
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condition[y_id*wight+x_id]=0;
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}
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if (!img[px+3]>t) {
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condition[y_id*wight+x_id]=0;
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}
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if (!img[px+1-w3]>t) {
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condition[y_id*wight+x_id]=0;
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}
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if (!img[px+2-2*image_stride]>t) {
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condition[y_id*wight+x_id]=0;
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}
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if (!img[px+3-image_stride]>t) {
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condition[y_id*wight+x_id]=0;
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}
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condition[y_id*wight+x_id]=255;
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}
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if (!img[px-3+image_stride]>t) {
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if (!img[px+3]>t) {
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condition[y_id*wight+x_id]=0;
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}
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if (!img[px+1-w3]>t) {
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condition[y_id*wight+x_id]=0;
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}
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if (!img[px+2-2*image_stride]>t) {
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condition[y_id*wight+x_id]=0;
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}
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if (!img[px+3-image_stride]>t) {
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condition[y_id*wight+x_id]=0;
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}
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condition[y_id*wight+x_id]=255;
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}
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if (!img[px+3]>t) {
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if (!img[px-3]>t) {
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condition[y_id*wight+x_id]=0;
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}
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if (!img[px-3-image_stride]>t) {
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condition[y_id*wight+x_id]=0;
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}
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if (!img[px-2-2*image_stride]>t) {
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condition[y_id*wight+x_id]=0;
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}
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condition[y_id*wight+x_id]=255;
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}
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if (!img[px+3-image_stride]>t) {
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if (!img[px-3]>t) {
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condition[y_id*wight+x_id]=0;
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}
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if (!img[px-3-image_stride]>t) {
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condition[y_id*wight+x_id]=0;
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}
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condition[y_id*wight+x_id]=255;
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}
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if (!img[px-3]>t) {
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if (!img[px+2-2*image_stride]>t) {
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condition[y_id*wight+x_id]=0;
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}
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condition[y_id*wight+x_id]=255;
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}
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condition[y_id*wight+x_id]=255;
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}
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if (!img[px-2-2*image_stride]>t) {
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if (!img[px+3]>t) {
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condition[y_id*wight+x_id]=0;
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}
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if (!img[px+3+image_stride]>t) {
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condition[y_id*wight+x_id]=0;
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}
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if (!img[px+w3]>t) {
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condition[y_id*wight+x_id]=0;
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}
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if (!img[px+1+w3]>t) {
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condition[y_id*wight+x_id]=0;
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}
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if (!img[px+2+2*image_stride]>t) {
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condition[y_id*wight+x_id]=0;
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}
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if (!img[px+3-image_stride]>t) {
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if (!img[px-1+w3]>t) {
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condition[y_id*wight+x_id]=0;
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}
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if (!img[px-3-image_stride]>t) {
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condition[y_id*wight+x_id]=0;
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}
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if (!img[px-2+2*image_stride]>t) {
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condition[y_id*wight+x_id]=0;
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}
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if (!img[px-3+image_stride]>t) {
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condition[y_id*wight+x_id]=0;
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}
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if (!img[px-3]>t) {
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condition[y_id*wight+x_id]=0;
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}
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condition[y_id*wight+x_id]=255;
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}
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if (!img[px+2-2*image_stride]>t) {
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if (!img[px-3]>t) {
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condition[y_id*wight+x_id]=0;
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}
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if (!img[px-1+w3]>t) {
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condition[y_id*wight+x_id]=0;
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}
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if (!img[px-2+2*image_stride]>t) {
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condition[y_id*wight+x_id]=0;
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}
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if (!img[px-3+image_stride]>t) {
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condition[y_id*wight+x_id]=0;
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}
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condition[y_id*wight+x_id]=255;
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}
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if (!img[px+1-w3]>t) {
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if (!img[px-1+w3]>t) {
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condition[y_id*wight+x_id]=0;
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}
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if (!img[px-2+2*image_stride]>t) {
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condition[y_id*wight+x_id]=0;
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}
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if (!img[px-3+image_stride]>t) {
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condition[y_id*wight+x_id]=0;
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}
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condition[y_id*wight+x_id]=255;
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}
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if (!img[px-w3]>t) {
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if (!img[px-1+w3]>t) {
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condition[y_id*wight+x_id]=0;
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}
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if (!img[px-2+2*image_stride]>t) {
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condition[y_id*wight+x_id]=0;
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}
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condition[y_id*wight+x_id]=255;
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}
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condition[y_id*wight+x_id]=255;
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}
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if (!img[px-3-image_stride]>t) {
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if (!img[px+1+w3]>t) {
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condition[y_id*wight+x_id]=0;
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}
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if (!img[px+3-image_stride]>t) {
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condition[y_id*wight+x_id]=0;
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}
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if (!img[px+3]>t) {
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condition[y_id*wight+x_id]=0;
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}
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if (!img[px+3+image_stride]>t) {
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condition[y_id*wight+x_id]=0;
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}
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if (!img[px+2+2*image_stride]>t) {
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condition[y_id*wight+x_id]=0;
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}
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if (!img[px+2-2*image_stride]>t) {
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if (!img[px+w3]>t) {
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condition[y_id*wight+x_id]=0;
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}
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if (!img[px-3]>t) {
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condition[y_id*wight+x_id]=0;
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}
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if (!img[px-1+w3]>t) {
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condition[y_id*wight+x_id]=0;
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}
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if (!img[px-2+2*image_stride]>t) {
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condition[y_id*wight+x_id]=0;
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}
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if (!img[px-3+image_stride]>t) {
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condition[y_id*wight+x_id]=0;
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}
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condition[y_id*wight+x_id]=255;
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}
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if (!img[px+1-w3]>t) {
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if (!img[px-3+image_stride]>t) {
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condition[y_id*wight+x_id]=0;
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}
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if (!img[px+w3]>t) {
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condition[y_id*wight+x_id]=0;
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}
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if (!img[px-1+w3]>t) {
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condition[y_id*wight+x_id]=0;
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}
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if (!img[px-2+2*image_stride]>t) {
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condition[y_id*wight+x_id]=0;
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}
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condition[y_id*wight+x_id]=255;
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}
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if (!img[px-w3]>t) {
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if (!img[px+w3]>t) {
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condition[y_id*wight+x_id]=0;
|
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}
|
||||
if (!img[px-1+w3]>t) {
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condition[y_id*wight+x_id]=0;
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||||
}
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if (!img[px-2+2*image_stride]>t) {
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condition[y_id*wight+x_id]=0;
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}
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condition[y_id*wight+x_id]=255;
|
||||
}
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condition[y_id*wight+x_id]=255;
|
||||
}
|
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if (!img[px-w3]>t) {
|
||||
if (!img[px+2+2*image_stride]>t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+1+w3]>t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px-2+2*image_stride]>t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+w3]>t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px-1+w3]>t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px-3+image_stride]>t) {
|
||||
if (!img[px+1-w3]>t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+3+image_stride]>t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+2-2*image_stride]>t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+3-image_stride]>t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+3]>t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
condition[y_id*wight+x_id]=255;
|
||||
}
|
||||
if (!img[px-3]>t) {
|
||||
if (!img[px+3+image_stride]>t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+2-2*image_stride]>t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+3-image_stride]>t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+3]>t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
condition[y_id*wight+x_id]=255;
|
||||
}
|
||||
condition[y_id*wight+x_id]=255;
|
||||
}
|
||||
if (!img[px-3]>t) {
|
||||
if (!img[px+2+2*image_stride]>t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+2-2*image_stride]>t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+3-image_stride]>t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+3+image_stride]>t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+3]>t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+1-w3]>t) {
|
||||
if (!img[px+1+w3]>t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px-3+image_stride]>t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+w3]>t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px-1+w3]>t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px-2+2*image_stride]>t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
condition[y_id*wight+x_id]=255;
|
||||
}
|
||||
condition[y_id*wight+x_id]=255;
|
||||
}
|
||||
if (!img[px+1-w3]>t) {
|
||||
if (!img[px+1+w3]>t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px-3+image_stride]>t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+w3]>t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px-1+w3]>t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px-2+2*image_stride]>t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
condition[y_id*wight+x_id]=255;
|
||||
}
|
||||
if (!img[px+2-2*image_stride]>t) {
|
||||
if (!img[px-3+image_stride]>t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+w3]>t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px-1+w3]>t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px-2+2*image_stride]>t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
condition[y_id*wight+x_id]=255;
|
||||
}
|
||||
if (!img[px-3+image_stride]>t) {
|
||||
if (!img[px+3-image_stride]>t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+3]>t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+3+image_stride]>t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
condition[y_id*wight+x_id]=255;
|
||||
}
|
||||
if (!img[px-2+2*image_stride]>t) {
|
||||
if (!img[px+3-image_stride]>t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+3]>t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
condition[y_id*wight+x_id]=255;
|
||||
}
|
||||
if (!img[px+3-image_stride]>t) {
|
||||
if (!img[px-1+w3]>t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
condition[y_id*wight+x_id]=255;
|
||||
}
|
||||
*/
|
||||
};
|
||||
@@ -0,0 +1,376 @@
|
||||
__kernel void is_corner_10_less(__global const uchar* img,__global const int* x,__global const int* y,int image_stride, int wight,int barrier,
|
||||
__global uchar* condition) {
|
||||
int x_id=x[get_global_id(0)];
|
||||
int y_id=y[get_global_id(1)];
|
||||
int px=y_id*image_stride+x_id;
|
||||
int w3 = 3*image_stride;//3*image_stride
|
||||
int t = (img[px] << 8) | img[px+1] - barrier;
|
||||
if(get_global_id(0)>100){
|
||||
condition[get_global_id(1)*752+get_global_id(0)]=255;
|
||||
}else{
|
||||
if(condition[get_global_id(1)*752+get_global_id(0)]!=100)
|
||||
condition[get_global_id(1)*752+get_global_id(0)]=0;
|
||||
}
|
||||
/*
|
||||
if (!img[px-1-w3]<t) {
|
||||
if (!img[px+3+image_stride]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+2+2*image_stride]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px-1+w3]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+1+w3]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+w3]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px-2+2*image_stride]<t) {
|
||||
if (!img[px-w3]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+3]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+1-w3]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+2-2*image_stride]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+3-image_stride]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
condition[y_id*wight+x_id]=255;
|
||||
}
|
||||
if (!img[px-3+image_stride]<t) {
|
||||
if (!img[px+3]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+1-w3]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+2-2*image_stride]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+3-image_stride]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
condition[y_id*wight+x_id]=255;
|
||||
}
|
||||
if (!img[px+3]<t) {
|
||||
if (!img[px-3]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px-3-image_stride]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px-2-2*image_stride]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
condition[y_id*wight+x_id]=255;
|
||||
}
|
||||
if (!img[px+3-image_stride]<t) {
|
||||
if (!img[px-3]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px-3-image_stride]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
condition[y_id*wight+x_id]=255;
|
||||
}
|
||||
if (!img[px-3]<t) {
|
||||
if (!img[px+2-2*image_stride]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
condition[y_id*wight+x_id]=255;
|
||||
}
|
||||
condition[y_id*wight+x_id]=255;
|
||||
}
|
||||
if (!img[px-2-2*image_stride]<t) {
|
||||
if (!img[px+3]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+3+image_stride]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+w3]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+1+w3]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+2+2*image_stride]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+3-image_stride]<t) {
|
||||
if (!img[px-1+w3]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px-3-image_stride]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px-2+2*image_stride]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px-3+image_stride]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px-3]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
condition[y_id*wight+x_id]=255;
|
||||
}
|
||||
if (!img[px+2-2*image_stride]<t) {
|
||||
if (!img[px-3]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px-1+w3]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px-2+2*image_stride]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px-3+image_stride]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
condition[y_id*wight+x_id]=255;
|
||||
}
|
||||
if (!img[px+1-w3]<t) {
|
||||
if (!img[px-1+w3]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px-2+2*image_stride]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px-3+image_stride]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
condition[y_id*wight+x_id]=255;
|
||||
}
|
||||
if (!img[px-w3]<t) {
|
||||
if (!img[px-1+w3]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px-2+2*image_stride]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
condition[y_id*wight+x_id]=255;
|
||||
}
|
||||
condition[y_id*wight+x_id]=255;
|
||||
}
|
||||
if (!img[px-3-image_stride]<t) {
|
||||
if (!img[px+1+w3]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+3-image_stride]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+3]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+3+image_stride]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+2+2*image_stride]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+2-2*image_stride]<t) {
|
||||
if (!img[px+w3]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px-3]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px-1+w3]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px-2+2*image_stride]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px-3+image_stride]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
condition[y_id*wight+x_id]=255;
|
||||
}
|
||||
if (!img[px+1-w3]<t) {
|
||||
if (!img[px-3+image_stride]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+w3]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px-1+w3]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px-2+2*image_stride]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
condition[y_id*wight+x_id]=255;
|
||||
}
|
||||
if (!img[px-w3]<t) {
|
||||
if (!img[px+w3]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px-1+w3]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px-2+2*image_stride]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
condition[y_id*wight+x_id]=255;
|
||||
}
|
||||
condition[y_id*wight+x_id]=255;
|
||||
}
|
||||
if (!img[px-w3]<t) {
|
||||
if (!img[px+2+2*image_stride]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+1+w3]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px-2+2*image_stride]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+w3]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px-1+w3]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px-3+image_stride]<t) {
|
||||
if (!img[px+1-w3]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+3+image_stride]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+2-2*image_stride]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+3-image_stride]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+3]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
condition[y_id*wight+x_id]=255;
|
||||
}
|
||||
if (!img[px-3]<t) {
|
||||
if (!img[px+3+image_stride]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+2-2*image_stride]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+3-image_stride]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+3]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
condition[y_id*wight+x_id]=255;
|
||||
}
|
||||
condition[y_id*wight+x_id]=255;
|
||||
}
|
||||
if (!img[px-3]<t) {
|
||||
if (!img[px+2+2*image_stride]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+2-2*image_stride]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+3-image_stride]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+3+image_stride]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+3]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+1-w3]<t) {
|
||||
if (!img[px+1+w3]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px-3+image_stride]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+w3]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px-1+w3]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px-2+2*image_stride]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
condition[y_id*wight+x_id]=255;
|
||||
}
|
||||
condition[y_id*wight+x_id]=255;
|
||||
}
|
||||
if (!img[px+1-w3]<t) {
|
||||
if (!img[px+1+w3]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px-3+image_stride]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+w3]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px-1+w3]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px-2+2*image_stride]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
condition[y_id*wight+x_id]=255;
|
||||
}
|
||||
if (!img[px+2-2*image_stride]<t) {
|
||||
if (!img[px-3+image_stride]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+w3]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px-1+w3]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px-2+2*image_stride]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
condition[y_id*wight+x_id]=255;
|
||||
}
|
||||
if (!img[px-3+image_stride]<t) {
|
||||
if (!img[px+3-image_stride]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+3]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+3+image_stride]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
condition[y_id*wight+x_id]=255;
|
||||
}
|
||||
if (!img[px-2+2*image_stride]<t) {
|
||||
if (!img[px+3-image_stride]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
if (!img[px+3]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
condition[y_id*wight+x_id]=255;
|
||||
}
|
||||
if (!img[px+3-image_stride]<t) {
|
||||
if (!img[px-1+w3]<t) {
|
||||
condition[y_id*wight+x_id]=0;
|
||||
}
|
||||
condition[y_id*wight+x_id]=255;
|
||||
}
|
||||
*/
|
||||
};
|
||||
@@ -0,0 +1,103 @@
|
||||
// Copyright (C) 2011 Dmitri Nikulin
|
||||
// Copyright (C) 2011 Monash University
|
||||
//
|
||||
// Permission is hereby granted, free of charge, to any person
|
||||
// obtaining a copy of this software and associated documentation
|
||||
// files (the "Software"), to deal in the Software without
|
||||
// restriction, including without limitation the rights to use,
|
||||
// copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
// copies of the Software, and to permit persons to whom the
|
||||
// Software is furnished to do so, subject to the following
|
||||
// conditions:
|
||||
//
|
||||
// The above copyright notice and this permission notice shall be
|
||||
// included in all copies or substantial portions of the Software.
|
||||
//
|
||||
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
|
||||
// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
|
||||
// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
|
||||
// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
||||
// OTHER DEALINGS IN THE SOFTWARE.
|
||||
|
||||
// Enable OpenCL 32-bit integer atomic functions.
|
||||
|
||||
__kernel void prefast_gray(
|
||||
__read_only image2d_t image,
|
||||
__global int2 * corners,
|
||||
__global int * icorner,
|
||||
int fast_count
|
||||
) {
|
||||
|
||||
// Prepare a suitable OpenCL image sampler.
|
||||
sampler_t const sampler = CLK_ADDRESS_CLAMP | CLK_FILTER_NEAREST;
|
||||
|
||||
// Use global work item as 2D image coordinates.
|
||||
int const x = get_global_id(0);
|
||||
int const y = get_global_id(1);
|
||||
if(x>16 && x<get_image_width(image)-16 && y<get_image_height(image)-16 && y>16){
|
||||
int2 const xy = (int2)(x, y);
|
||||
// Read the candidate pixel.
|
||||
int const p00 = read_imageui(image, sampler, xy).x;
|
||||
|
||||
// Read other pixels in a circle around the candidate pixel.
|
||||
int const p01 = read_imageui(image, sampler, xy + (int2)( 0, 3)).x;
|
||||
int const p05 = read_imageui(image, sampler, xy + (int2)( 3, 0)).x;
|
||||
int const p09 = read_imageui(image, sampler, xy + (int2)( 0, -3)).x;
|
||||
int const p13 = read_imageui(image, sampler, xy + (int2)(-3, 0)).x;
|
||||
|
||||
// Check the absolute difference of each circle pixel.
|
||||
int const d01 = (abs(p01 - p00) > FAST_THRESH);
|
||||
int const d05 = (abs(p05 - p00) > FAST_THRESH);
|
||||
int const d09 = (abs(p09 - p00) > FAST_THRESH);
|
||||
int const d13 = (abs(p13 - p00) > FAST_THRESH);
|
||||
|
||||
// Check if any two adjacent circle pixels have a high absolute difference.
|
||||
|
||||
if ((d01 && d05) ||(d05 && d09) ||(d09 && d13) ||(d13 && d01)) {
|
||||
// Read other pixels in a circle around the candidate pixel.
|
||||
int const p02 = read_imageui(image, sampler, xy + (int2)( 1, 3)).x;
|
||||
int const p03 = read_imageui(image, sampler, xy + (int2)( 2, 2)).x;
|
||||
int const p04 = read_imageui(image, sampler, xy + (int2)( 3, 1)).x;
|
||||
int const p06 = read_imageui(image, sampler, xy + (int2)( 3, -1)).x;
|
||||
int const p07 = read_imageui(image, sampler, xy + (int2)( 2, -2)).x;
|
||||
int const p08 = read_imageui(image, sampler, xy + (int2)( 1, -3)).x;
|
||||
int const p10 = read_imageui(image, sampler, xy + (int2)(-1, -3)).x;
|
||||
int const p11 = read_imageui(image, sampler, xy + (int2)(-2, -2)).x;
|
||||
int const p12 = read_imageui(image, sampler, xy + (int2)(-3, -1)).x;
|
||||
int const p14 = read_imageui(image, sampler, xy + (int2)(-3, 1)).x;
|
||||
int const p15 = read_imageui(image, sampler, xy + (int2)(-2, 2)).x;
|
||||
int const p16 = read_imageui(image, sampler, xy + (int2)(-1, 3)).x;
|
||||
// Select the maximum score.
|
||||
int sco = p00;
|
||||
sco = max(sco, p01);
|
||||
sco = max(sco, p02);
|
||||
sco = max(sco, p03);
|
||||
sco = max(sco, p04);
|
||||
sco = max(sco, p05);
|
||||
sco = max(sco, p06);
|
||||
sco = max(sco, p07);
|
||||
sco = max(sco, p08);
|
||||
sco = max(sco, p09);
|
||||
sco = max(sco, p10);
|
||||
sco = max(sco, p11);
|
||||
sco = max(sco, p12);
|
||||
sco = max(sco, p13);
|
||||
sco = max(sco, p14);
|
||||
sco = max(sco, p15);
|
||||
|
||||
// Keep this score if it is as good as the maximum.
|
||||
if (p00 >= sco) {
|
||||
// Atomically append to corner buffer.
|
||||
int const icorn = atom_inc(icorner);
|
||||
if (icorn < fast_count)
|
||||
corners[icorn] = xy;
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user