HugYourPug wrote:
How can I use Photoshop to correct the greenish tint in some photographs that I have? They are some 50 years old, but are viable except for this.
This is typical of old images – of the three dyes making up a chromagenic image, magenta and yellow are the first to go, and the result is a cyan or green cast. If an image is left in the sun for several years – a favorite decoration of American druggists – the cyan alone remains. Lab is usually the best color mode for restoring faded color images.
Convert to Lab, run Curves, and alter the Lightness curve to restore the image’s overall contrast and detail. Then carefully adjust the end points of the a and b channels to get rid of the greenish cast. When the cast is gone, increase the overall color saturation by steepening the a and b channels.
Post an url pointer to your image, and perhaps some of us will take a crack at it.
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Mike Russell
www.curvemeister.com
www.geigy.2y.net