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Quickly locate the darkest and lightest pixels in an image

Added on Friday 27th of April 2007 01:38 am EST


Adobe Photoshop 7/CS/CS2

Operating Systems:

Macintosh, Microsoft Windows


When you’re color correcting an image it’s important to be able to identify the darkest shadow and the brightest highlight. But if your eyes aren’t properly trained, that doesn’t mean your image has to suffer. Instead, try this trick.


To determine the darkest and lightest pixels in an image:

1.       Click on the Create A New Fill Or Adjustment Layer button new_adjustment located at the base of the Layers palette, and choose Threshold from the pop-up menu.

2.      Slide the slider all the way to the left so the entire image turns white.

3.      Move the slider slowly to the right until some black pixels appear, as shown in Figure A. Click OK. (For our image, black pixels displayed at the lowest threshold level.)

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