Good day! I'm a bit new to ImageMagick, and I was wondering: I have
~10k pictures with a red background. It's not perfectly red--they're
photos taken on top of a piece of red backdrop. And I'd like to
remove this red backdrop. Selecting by color is feasible, but
doesn't do exactly what I want, since the portion I want to remove is
contiguous, I'd like to take advantage of this fact.
So is there a way to mimic the magic wand/fuzzy select function in
Magick? Something where I could indicate a "start pixel" and a
threshold?
For reference, here's the best output I can achieve with selection by
color (I've filled in the selected area, rather than remove, for
comparison's sake). Note the red missed at the bottom of the paper.
via
convert -fill "#80c0e0" -fuzz 17% -opaque "#B54F50"
magick_before.jpg magick_after.jpg
Original image: http://web.mit.edu/~aresnick/Public/magick_before.jpg
Modified image: http://web.mit.edu/~aresnick/Public/magick_after.jpg
Thanks for your help!
Gratefully,
a.
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