Hello all,
I have a question that I feel must be either a bug in our version of
imagemagick (version 6.2.4 09/11/06 Q16 on Debian Linux) or simple user error.
I have a grayscale tif image that tiffinfo show to have: Bits/Sample: 8
and Samples/Pixel:
1
No matter what I do, after I run convert on the image, tiffinfo reports:
Bits/Sample: 8 and Samples/Pixel: 3.
I’ve tried all parameters that I could see (looked at
http://www.imagemagick.org/script/command-line-options.php#channel),
but nothing helped.
This of course is causing an increase in file size of the resulting image
(original image: 65KB, resulting image 185KB).
Our real usage will of course actually do something with the images, but I
determined that even if I just do:
“convert original.tif
new.tif” then the increase happens.
Interesting
note: Just as I was about to send this I realized imagemagick is supported on
windows.
I downloaded ImageMagick-6.4.0-9-Q16-windows-dll.exe and ran the same command
on windows – the problem does NOT occur.
This supports the idea that this is just a bug in 6.2.4 Debian and I should
simply upgrade.
Just in case, I should mention I get the following message when I run convert
on Linux:
“convert: <filename.tif>: Unknown pseudo-tag 65537. ‘TIFFSetField’.”
Thanks alot in advance for any help.
Cheers,
Leigh
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