[RFE] Shadow / highlight clipping indicators

[lphilpot]

I use XnView MP for initial culling after a photo shoot, since it's much faster (and more capable as a browser) than my raw editor. There are times the difference between one shot and another "identical" one is the presence or absence of clipped data.

I check the histogram but sometimes it's difficult to tell if anything is actually clipped or just close. Therefore, having indicators for shadow and highlight clipping would be great, preferably with on-image coloring to show where it's clipped. An nice bonus would be the ability to set (as a preference) the actual 1-255 clipping thresholds.

Thanks!