[magick-users] a composite setup question

[John Smith]

 quite nice, and thank you... ! i can see how that works, and it just
looks like very straightfoward syntax matters.  very good help & i do
appreciate it! =)

have a Wonderful week, Best Regards ~~Lamp

  ----- Original Message -----
  From: "Fred Weinhaus"
  To: magick-users at imagemagick.org
  Subject: [magick-users] a composite setup question
  Date: Mon, 17 Mar 2008 16:12:34 -0700


  This works:

  convert rose: -shave 10x10 +repage -bordercolor red -border 10x10
  miff: | \
  composite -blend 25% miff: rose: rose_blend.png

  Puts trims a 10 pixel area around the image, then adds a 10 pixel
  red border back around the trimmed image, then mixes the bordered
  and original images together with 25/75 mix.


  Unfortunately this does not seem to work. Perhaps Anthony can
  explain.
  w
  composite -blend 25% rose: \
  \( rose: -shave 10x10 +repage -bordercolor red -border 10x10 \) \
  +swap rose: rose_blend.png

  I suspect that composite is not as versatile with respect to \( ...
  \) notation as is convert.



  > Use of the composite feature confuses me. I would like to do some
  > overlays, but just to get a feel for the syntax and options. So ?
  is how
  > would I possibly do this:
  >
  > Draw around the inside edge of a given sample image,
  >
  > 1) i should be able to adjust the transparency value
  > 2) for this example, some generic color, like #FFFFFF or #000000
  >
  > If I can adjust the thickness that would be excellent! :)
  >
  > so, in principle the idea is:
  >
  > convert sample_image.png {over border around --inside-- edge of
  input
  > image @ some thickness @ some color @ some transparency %]
  > output_image.png
  >
  > thank you very very much for helping me understand this powerful
  program
  > and your time to ramp up my knowledge of some features. Have a very
  good
  > day. :-)
  >
  > ~lamp
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