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propagated changes for retina filters from trunk to 2.4

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This commit is contained in:
Vadim Pisarevsky
2012-04-25 17:32:14 +00:00
parent db3f9b139b
commit c9e6efc263
2 changed files with 7 additions and 1 deletions
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3
modules/contrib/src/basicretinafilter.cpp
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@@ -334,7 +334,8 @@ void BasicRetinaFilter::_localLuminanceAdaptation(const float *inputFrame, const
for (register unsigned int IDpixel=0 ; IDpixel<_filterOutput.getNBpixels() ; ++IDpixel, ++inputFramePTR)
{
float X0=*(localLuminancePTR++)*_localLuminanceFactor+_localLuminanceAddon;
*(outputFramePTR++) = (_maxInputValue+X0)**inputFramePTR/(*inputFramePTR +X0);
// TODO : the following line can lead to a divide by zero ! A small offset is added, take care if the offset is too large in case of High Dynamic Range images which can use very small values...
*(outputFramePTR++) = (_maxInputValue+X0)**inputFramePTR/(*inputFramePTR +X0+0.00000000001);
//std::cout<<"BasicRetinaFilter::inputFrame[IDpixel]=%f, X0=%f, outputFrame[IDpixel]=%f\n", inputFrame[IDpixel], X0, outputFrame[IDpixel]);
}
}