mirror/opencv
1
0
Fork 0
mirror of https://github.com/opencv/opencv.git synced 2025-06-07 17:44:04 +08:00
Code Issues Actions Packages Projects Releases Wiki Activity

Fix H clamping for very small negative values.

Browse Source 
In case of very small negative h (e.g. -1e-40), with the current implementation,
you will go through the first condition and end up with h = 6.f, and will miss
the second condition.
This commit is contained in:
Vincent Rabaud 2021-11-15 13:09:02 +01:00
parent 585484cb06
commit d4741eece1
1 changed files with 4 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
modules/imgproc/src/color_hsv.simd.hpp
View File

@ -955,12 +955,11 @@ struct HLS2RGB_f
float p1 = 2*l - p2;
h *= hscale;
if( h < 0 )
do h += 6; while( h < 0 );
else if( h >= 6 )
do h -= 6; while( h >= 6 );
// We need both loops to clamp (e.g. for h == -1e-40).
while( h < 0 ) h += 6;
while( h >= 6 ) h -= 6;
assert( 0 <= h && h < 6 );
CV_DbgAssert( 0 <= h && h < 6 );
sector = cvFloor(h);
h -= sector;