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I'm trying to convert an image "img.tif" to "img.jpg" with the following command:

convert img.tif img.jpg

And this error arises:

convert: no decode delegate for this image format `TIFF' @ error/constitute.c/ReadImage/501.

I've trawled the web for answers, but nothing is working. The suggestions from previous people with this problem have been:

brew reinstall imagemagick --with-libtiff

, which I have done, to no avail. The call:

convert -list configure

still gives the following for DELEGATES:

DELEGATES      bzlib mpeg png x xml zlib

ANY other suggestions would be appreciated. Even another way to convert from .tif to .jpg from the command line.

maia
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  • See this answer [here][1]. Try uninstalling first then install. [1]: http://stackoverflow.com/a/10319327/3506427 – bogdan.rusu Jul 24 '15 at 07:47

1 Answers1

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I know it's not exactely the right solution of your problem but it can "do the job".

You could convert from tif to jpg by adding a PNG (which is lossless) converting step: tif→PNG→jpg

 inkscape --export-png=img.png img.tif

then

convert img.png img.jpg

For me, the command

convert -list configure | grep DELEGATES

returns:

DELEGATES     bzlib djvu fftw fontconfig freetype jbig jpeg jng jp2 lcms2 lqr lzma openexr pango png rsvg tiff x11 xml wmf zlib

And I didn't do something special during install so I don't understand why you don't have the "tif" nor the "jpeg" part…

Maybe you can try to install "libtiff-tools" "libjpeg" and "libjpeg-turbo".

The delegates could be found here: Imagemagic Delegates

Alexandre Ruso
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