Feature request - RGB value when hovering on image

Submitted by rektosaurus on Mon, 04/07/2025 - 03:51
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General discussion

Would be great to highlight RBG value in histogram while hovering over image. There is a similar function in LR (rgb %) and Capture One (orange line).

lexa

Mon, 04/07/2025 - 06:19

1) FastRawViewer (with standard settings) renders to RGB at GPU side, there is no simple/fast access to screen data. Generally it is possible to download rendered image to CPU side but this may lead to the need to remove the word Fast from the program name.

2) RGB (rendered) values do not help with culling (so: selection from several similar images based on image exposure): image adjustments (lightness, white balance, contast) will change rendered values while source RAW values not change. In fact, culling using rendered RGB values complicates and confuses the selection process see our article on this topic: https://www.fastrawviewer.com/culling-with-raw-converter

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Alex Tutubalin/FastRawViewer team

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