generic-library/opencv
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Added ROUNDING_EPS for identical rounding after dividing on different platforms

Browse Source
This commit is contained in:
Alexander Karsakov 2014-08-12 12:06:37 +04:00
parent 10b3d00fd1
commit 5898dcae4a
1 changed files with 5 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
modules/imgproc/src/opencl/calc_back_project.cl
View File

@ -39,6 +39,9 @@
#define OUT_OF_RANGE -1
// for identical rounding after dividing on different platforms
#define ROUNDING_EPS 0.000001f
#if histdims == 1
__kernel void calcLUT(__global const uchar * histptr, int hist_step, int hist_offset, int hist_bins,
@ -53,7 +56,7 @@ __kernel void calcLUT(__global const uchar * histptr, int hist_step, int hist_of
{
float lb = ranges[0], ub = ranges[1], gap = (ub - lb) / hist_bins;
value -= lb;
int bin = convert_int_sat_rtn(value / gap);
int bin = convert_int_sat_rtn(value / gap + ROUNDING_EPS);
if (bin >= hist_bins)
lut[x] = OUT_OF_RANGE;
@ -101,7 +104,7 @@ __kernel void calcLUT(int hist_bins, __global int * lut, int lut_offset,
{
float lb = ranges[0], ub = ranges[1], gap = (ub - lb) / hist_bins;
value -= lb;
int bin = convert_int_sat_rtn(value / gap);
int bin = convert_int_sat_rtn(value / gap + ROUNDING_EPS);
lut[x] = bin >= hist_bins ? OUT_OF_RANGE : bin;
}