While using curves on greyscale images is straight forward, (more or less!) using them on coloured RGB images can produce some rather wild and unpredictable colour shifts - they can be useful for special effects but are rather difficult to control. I picked up a reference in the Adobe Mac photoshop forum to using Luminosity blending mode on the curves adjustment layer to (partially) get round this problem. And it works well. Am I correct in thinking that this is equivalent to splitting the luminosity and colour, using the curves on the luminosity and then recombining? And does anyone know of any other uses for different blending modes on any of the other adjustment layers? I am finding it hard to predict exactly what I would get using different modes on adjustment layers.
Susan S.
Susan S.
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