Hi. I'd like to start (my first post to the list) by saying thanks to everyone
who makes Imagemagick what it is. It truly is one of the great OSS successes
and I hope it continues to grow and grow!
My trouble is this: I'm writing a bash script to create thumbnails for product
images which are fixed up via the GIMP. I use the gimp to cut out the
background of images. Then I add a 2nd layer of background color, and save the
file as *.XCF with a proportion of 640x480 (or the other way around.) I don't
flatten nor do I reduce the size of the image in the gimp as I might want to
edit it again later. I'm attempting to use convert in a shell script to
flatten, strip, risize, and convert to jpeg. This is my current line:
convert -resize @307200 -flatten -strip -quality 70 "$i" "${i/.xcf}.jpg"
I have also tried something as simple as:
convert foo.xcf -flatten foo.jpg
as well as:
convert foo.xcf -flatten -background none foo.jpg
My version of IM/convert is 6.0.7.
These mostly works as expected in that the cutout image from the first layer
appears over its colored background layer...except that the cutout image
develops a thick black line around it. This seems to develop from the partially
transparent edge around the cutout image in the first layer.
Is there a way to flatten a GIMP image that results in something similar to
the way the GIMP does it -- that is, a smooth gradation between the edge of the
image and complete transparency into the next layer?
In my scouring of the net I came across this gem:
"This is not PS -- it's IM." Of this fact I am aware and in agreement. But I
still want to know, is there a way to do it "the IM way"?
BTW, I've discovered that a newer version of IM/convert, used in a similar
fashion as above, refuses to perform any "flattening" of the image at all. It
seems merely to blacken out the transparent part of the layer containing the
cutout of my image and does not show the lower layer at all. So I'm not sure
if I should upgrade quite yet or not..but any advice regarding either version
would be much appreciated.
TIA!
Mike
Nagano, Japan
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