05-23-2020, 11:17 AM
How many colors before/after, as reported by Color>Info>Color cube analysis. And do the histograms look the same?
It could a psycho-sensory illusion, we don't process large images as we do the small ones.
Otherwise, scaling down introduces a slight blur and you can restore some of the initial sharpness with Filters>Enhance>Sharpen (unshapr mask). You saturation problem is more likely a contrast problem, you can boost the contrast a bit with Brightness-Contrast
It could a psycho-sensory illusion, we don't process large images as we do the small ones.
Otherwise, scaling down introduces a slight blur and you can restore some of the initial sharpness with Filters>Enhance>Sharpen (unshapr mask). You saturation problem is more likely a contrast problem, you can boost the contrast a bit with Brightness-Contrast