Match Reference

[Robert Schleif]

I had difficulty understanding the documentation on the Match Reference transformation partly because it seems like
Reference Image, image of the color target, and target image all mean the same thing. For me, a better term would be "Standardizing Image" and it would be good to use the term exclusively. (Reference seems to me to imply unchanging, which an image of a color card is not. Also, to me, target image could as well mean it is the target we are aiming at for the color corrected image.)

I think it may be helpful if the documentation were to explicitly state that the colors in an image can be corrected either by using a separate image of a color reference card taken under the same light conditions, or the colors in an image can be corrected by including a color card in the image itself.

The name of the Match Reference transformation itself is a little confusing as the transformation is not matching an image to the colors of the image of a color reference card, it is correcting tones to make the gray squares neutral in color. There must be a better name than what I've come up with "Color Bias Correction".

Is it feasible or sensible for a transformation to automatically first correct using the grey tones on a color card and then to apply selective color corrections for some or all of the color squares?

[jsachs]

While I don't want to rename anything in the transformation as this causes backward compatibility problems, I am rewriting the documentation to make it clearer since I was using the terms reference image and target image interchangeably. I am also adding some examples.

[jsachs]

While I don't want to rename anything in the transformation as this causes backward compatibility problems, I am rewriting the documentation to make it clearer since I was using the terms reference image and target image interchangeably. I am also adding some examples.

[Robert Schleif]

That will help, thank you.