David Joyner Published on April 3rd, 08
by David Joynerpro

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Playing with GIMP

Thursday April 3rd, 2008 at 01:16AM

The mirrored negative images

windchime mirror negative in c…

I posted were created using GIMP, insprired by goplayer. These images were created from a photo using these steps:

  1. open the photo in 2 GIMP windows,
  2. open layer dialog and set opacity to 50%,
  3. set layer->transparency->color to alpha,
  4. transform one photo using image->transform->flip,
  5. color->invert (possibly boost saturation or tweek hues),
  6. copy,
  7. in window of other image, again, set opacity+transparency,
  8. paste and reset opacity,
  9. save (for safety)
  10. layer->remove alpha channel, and save.

Hope this works. Please leave a comment if you have a better way or if there are mistakes.

 

3 Comments / add your comment?

NAVAVAR <->ՆԱՒԱՎԱՐ says:
Please post it as a pdf file to Tutorials group.
Posted 2 months ago. ( permalink )
David Joyner pro says:
Thanks for the suggestion. I created a 1 page pdf (with active hypertext links) and posted it instead to wdjoyner.com/photography/papers/gimp-double-exposure-tutorial.pdf,
so even ipernity members who are no "pro"s can download it if they want.
Posted 2 months ago. ( permalink )
NAVAVAR <->ՆԱՒԱՎԱՐ says:
Hi David, one doesn't need to open the same photo in two different windows. Much handier would be to use the command 'open as layer'. Each layer can be treated separately and then merged down.

It is hardly advisable to use Copy-Paste handling an entire content of a picture.

By the way, what is Alpha layer? I see it mentioned all the time.
Posted 2 months ago. ( permalink )

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