"DSK" wrote in message

A friend has told me about color values in JPG files, a pic that has been
cut & pasted into another will be on a different color matrix.

It's known a hue saturation... I can crop from a photo, sample the hue of
the target and apply that to the pasted image so as to make it very
difficult to tell. This method requires detailed mask with a with a selected
pixel transparency rate sufficent to match the resolution of the target and
subject files. It is paramount that both pictures have the same resolution
to be effective. Pixel by pixel editing makes the image very difficult to
identify as a merged object.

Don't know how to read this myself
but it's one reason why some digital photos will be allowed as evidence in
court. Another giveaway is the double ".jpg" in the name.

That would be a save option.... not the result of a an edit.

CM