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I have two pictures:

(1) a pic of sky with clouds (2) a pic of some patterns

I like to use (1) as basis, but want to fill clouds with the pattern in (2). How may I do this? I use Photoshop on windows.

If the color and boundary of clouds are easily distinguishable from the sky, it might be easy. But when such a distinction is not obvious, I got a problem. How may I solve this problem?

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migrated from May 23 '11 at 4:21

This question came from our site for professional, enthusiast and amateur photographers.

This falls more into the photoshop bucket than photography bucket. We try to avoid questions that have to do with image editing techniques, as we are primarily a photography and photographic editing site (photo editing being fixing up things like tone curve, white balance, exposure, red-eye, etc.) General image editing questions are probably better asked on – jrista Nov 4 '10 at 0:07

You could apply a similar principle as would be used when trying to make a bottle transparent and make the clouds in your image appear transparent -- you could then add your pattern behind so they'd show through.

In addition to the techniques on that link, you could create a blending mask based on the brightness of your base image.

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