// License Agreement // For Open Source Computer Vision Library // // Copyright (C) 2010-2012, Institute Of Software Chinese Academy Of Science, all rights reserved. // Copyright (C) 2010-2012, Advanced Micro Devices, Inc., all rights reserved. // Third party copyrights are property of their respective owners. // // @Authors // Rock Li, Rock.li@amd.com // // Redistribution and use in source and binary forms, with or without modification, // are permitted provided that the following conditions are met: // // * Redistribution's of source code must retain the above copyright notice, // this list of conditions and the following disclaimer. // // * Redistribution's in binary form must reproduce the above copyright notice, // this list of conditions and the following disclaimer in the documentation // and/or other materials provided with the distribution. // // * The name of the copyright holders may not be used to endorse or promote products // derived from this software without specific prior written permission. // // This software is provided by the copyright holders and contributors as is and // any express or implied warranties, including, but not limited to, the implied // warranties of merchantability and fitness for a particular purpose are disclaimed. // In no event shall the Intel Corporation or contributors be liable for any direct, // indirect, incidental, special, exemplary, or consequential damages // (including, but not limited to, procurement of substitute goods or services; // loss of use, data, or profits; or business interruption) however caused // and on any theory of liability, whether in contract, strict liability, // or tort (including negligence or otherwise) arising in any way out of // the use of this software, even if advised of the possibility of such damage. __kernel void bilateral_C1_D0(__global uchar *dst, __global const uchar *src, const int dst_rows, const int dst_cols, const int maxk, const int radius, const int dst_step, const int dst_offset, const int src_step, const int src_rows, const int src_cols, __constant float *color_weight, __constant float *space_weight, __constant int *space_ofs) { int x = get_global_id(0); int y = get_global_id(1); if (y < dst_rows && x < dst_cols) { int src_index = mad24(y + radius, src_step, x + radius); int dst_index = mad24(y, dst_step, x + dst_offset); float sum = 0.f, wsum = 0.f; int val0 = (int)src[src_index]; for(int k = 0; k < maxk; k++ ) { int val = (int)src[src_index + space_ofs[k]]; float w = space_weight[k] * color_weight[abs(val - val0)]; sum += (float)(val) * w; wsum += w; } dst[dst_index] = convert_uchar_rtz(sum / wsum + 0.5f); } } __kernel void bilateral2_C1_D0(__global uchar *dst, __global const uchar *src, const int dst_rows, const int dst_cols, const int maxk, const int radius, const int dst_step, const int dst_offset, const int src_step, const int src_rows, const int src_cols, __constant float *color_weight, __constant float *space_weight, __constant int *space_ofs) { int x = get_global_id(0) << 2; int y = get_global_id(1); if (y < dst_rows && x < dst_cols) { int src_index = mad24(y + radius, src_step, x + radius); int dst_index = mad24(y, dst_step, x + dst_offset); float4 sum = (float4)(0.f), wsum = (float4)(0.f); int4 val0 = convert_int4(vload4(0,src + src_index)); for(int k = 0; k < maxk; k++ ) { int4 val = convert_int4(vload4(0,src+src_index + space_ofs[k])); float4 w = (float4)(space_weight[k]) * (float4)(color_weight[abs(val.x - val0.x)], color_weight[abs(val.y - val0.y)], color_weight[abs(val.z - val0.z)], color_weight[abs(val.w - val0.w)]); sum += convert_float4(val) * w; wsum += w; } *(__global uchar4*)(dst+dst_index) = convert_uchar4_rtz(sum/wsum+0.5f); } } __kernel void bilateral_C4_D0(__global uchar4 *dst, __global const uchar4 *src, const int dst_rows, const int dst_cols, const int maxk, const int radius, const int dst_step, const int dst_offset, const int src_step, const int src_rows, const int src_cols, __constant float *color_weight, __constant float *space_weight, __constant int *space_ofs) { int x = get_global_id(0); int y = get_global_id(1); if (y < dst_rows && x < dst_cols) { int src_index = mad24(y + radius, src_step, x + radius); int dst_index = mad24(y, dst_step, x + dst_offset); float4 sum = (float4)0.f; float wsum = 0.f; int4 val0 = convert_int4(src[src_index]); for(int k = 0; k < maxk; k++ ) { int4 val = convert_int4(src[src_index + space_ofs[k]]); float w = space_weight[k] * color_weight[abs(val.x - val0.x) + abs(val.y - val0.y) + abs(val.z - val0.z)]; sum += convert_float4(val) * (float4)w; wsum += w; } wsum = 1.f / wsum; dst[dst_index] = convert_uchar4_rtz(sum * (float4)wsum + (float4)0.5f); } }