What is difference between tonal contrast and just contrast? Usually the editor programs will have a contrast slider while the "special" plugins of these software will have tonal contrast. Is tonal contrast basically a boosted contrast?
Answer
In my experience, "tonal" contrast is usually limited to a specific tonal range. Most tools that I have used that have a tonal contrast slider usually have something along the lines of "highlight tonal contrast" and "shadow tonal contrast". Tonal contrast is similar to global contrast in the way it behaves, simply with the added connotation that it affects an attenuated range of tones, rather than all tones.
I am not sure what a single "tonal" contrast slider might mean, it wouldn't make sense to me to have a "contrast" slider and a "tonal contrast" slider that did not affect a restricted range of tones. If your software only has a "tonal" contrast slider it might be a local contrast setting.
It should be noted that global and tonal contrast is (or should be) a little different than "clarity", "local contrast", or "microcontrast", which is a setting that affects all tones, however in a "local" or "relative" context...relative to neighboring content, rather than on a global scale. Local contrast is much more subtle at lower settings, and much more impactful at higher settings, than global contrast.
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