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Viewing the R, G, and B histograms on top of each other

Posted: January 4th, 2011, 7:20 pm
by Charles2
The Raw dialog, Color tab, displays the R, G, and B histograms overlaid, something common to many raw processors.

Is this histogram overlay available in PWP proper? It would be nice to have it in the drop-down menu of the Histogram tool.

Re: Viewing the R, G, and B histograms on top of each other

Posted: January 4th, 2011, 8:07 pm
by ksinkel
Thank you for the suggestion.

Kiril

Re: Viewing the R, G, and B histograms on top of each other

Posted: January 23rd, 2011, 7:20 am
by tomczak
Here is another wish - correlating histogram clipping/blocking with highlight/shadow clipped pixels map (in preview?), though I remember Jonathan saying that there are technical reasons for not implementing histograms on preview window?

Switching between HSV and HSL would show me all I need: HSV-V histogram/clip map could show pixels clipped in at least one RGB channel and HSL-L could show pixels clipped in all three. And if I could see the histogram and correlated clipped pixels of the predicted OUTPUT image (preview?) as I adjust transformation's sliders, that could make guiding the adjustments in many transformations much, much easier.

I keep botching images often because I miss some areas that end up having one or two RGB channels blown as a result of a transformation I've applied, but didn't realized the destructive effects of (some of them are not that obvious nor easily detectable unless one combs the whole Preview in 1:1 each time slider(s) are adjusted, e.g. sharpening can easily blow fine saturated textures).

If that's not feasible, perhaps some kind of predicted clipping warning in Preview could be implemented: e.g. numerically displaying somewhere in the preview corner % of pixels fully saturated in HSV-V and/or HSL-L?