Green highlights with demosaic
Green highlights appear if demosaic plugin is activated.
At least with Canon 50D and 40D tested.
#3 Updated by Johannes Hanika over 8 years ago
i changed this code to better respect edges in the green channel while filtering the color channels. in my images this preserves highlights much better, while still removing the annoying 400D outliers.
not quite artifact free yet, but you can achieve better results when playing with the threshold a bit now.
#5 Updated by Igor Kuzmin over 8 years ago
Status update on this bug:
Median filter (edge threshold setting) still produces color artifacts. Also it smooths out small details, but that's how it works I guess. Good news is that you probably don't need it anyway. I found out that those white dots in high iso settings (removing them is IMHO the main application of this filter) are actually mostly artifacts from green eq (match greens setting). Red noise on the other hand can be removed almost completely using color smoothing.
So the real problem here is green eq - obviously there is some computation bug that results in apparent hot pixels