[Octave-bug-tracker] [bug #30784] imwrite fails when FMT is set explicitly

[John Swensen]

Follow-up Comment #6, bug #30784 (project octave):

Actually, because we now prepend the filename for every call to
GraphicMagick's WriteImages function, and because WriteImages only looks at
the start of the filename up to the first colon, everything works as
expected.

octave:9> imwrite(img,'tiff:test_img.png','bmp');
octave:10> system('file tiff:test_img.png')
tiff:test_img.png: PC bitmap, Windows 3.x format, 640 x 480 x 24
ans = 0
octave:11> imwrite(img,'tiff:test_img.png');
octave:12> system('file tiff:test_img.png')
tiff:test_img.png: PNG image, 640 x 480, 8-bit grayscale, non-interlaced
ans = 0

Did you actually remove the for loop, or do I need to whip up another
changeset?  I agree that it isn't necessary.

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