This gives a mask of where to apply the effect.Ģ. Perhaps it is applied 100% over a (narrow) range of hues. Where is the effect applied? Perhaps it is applied 100% where the hue is exactly orange, ramping down to zero where the hue is red or yellow. Many image effects (adjustments) break down into two parts:ġ. Is Lightroom's HSL the same as IM's HSL? I'll assume so, though HCL is generally a better match for what our eyes see.
Perhaps "89" is on a scale of 0-200 where "100" means no change. e-hsl-tab/, which suggests this adjusts the luminance (as in HSL) of the hue=orange parts of an image. For example, what does "LuminanceAdjustmentOrange = 89" do? A web search finds. They probably can be mapped to ImageMagick, but only after we know what those adjustments do. For some operations the "suitable combination" is a complex script, and sometimes this is more easily done by writing a process module, thus creating a new primitive.Īs sushburak says, the real difficulty is "how can we know all these adjustments can be mapped to imagemagick?" IM contains most primitives that we need to do almost any conceivable image processing, by a suitable combination of those primitives. The question is how can we know all these adjustments can be mapped to imagemagick ? For example contrast is contrast thats easy because its named the same everywhere but there is some fields like black2012, so is this a general adjustment or photoshop specific. We can develop a program like just you said reading xmp files and create options for imagemagick to understand but the problem is we don’t know all the adjustments in the xmp files can be mapped to imagemagick.
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