ImageMagick no decode delegate

Question

I'm trying to convert an image with imagemagick, but I'm getting this error:

convert: no decode delegate for this image format `//i.imgur.com/nTheJ.jpg' @ error/constitute.c/ReadImage/532.

I'm doing this:

convert http://i.imgur.com/nTheJ.jpg -resize 600×600 filarkiv/billeder/produkter/s236-085145.jpg

I have the following delegates:

DELEGATES freetype jpeg jng mpeg png x11 xml zlib

Anyone knows what the problem is?

Well, you have the JPEG delegate and it says there is a problem. Which poses the question, what is the matter with the source file? Or, the JPEG installation. — Orbling, Mar 06 '12 at 14:56
Could you clarify what OS you're using, and which version of ImageMagick? — florisla, Jan 26 '17 at 09:40
Your policy.xml file likely has restricted your use of HTTP. Edit your policy.xml file to give read permissions for HTTP. — fmw42, Jan 27 '22 at 00:38

score 75 · Answer 1 · answered Apr 25 '12 at 15:59

75

I had this error when rendering an image using DragonFly in Rails. This happened after I upgraded to Lion (ImageMagick was installed using Brew).

I reinstalled ImageMagick, jpeg, libtiff and jasper (reinstalling ImageMagick wasn't enough by itself).

brew uninstall imagemagick jpeg libtiff jasper
brew install imagemagick

Prior to that, running

identify -list format

and jpeg wasn't in the list. After reinstalling the above packages jpeg appeared in the list.

answered Apr 25 '12 at 15:59

Jonathon Horsman

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In my case was missing libpng - installed it with MacPorts, this triggered a rebuild of ImageMagick. . – Jasper Blues Feb 11 '13 at 09:37
Never could get Imagemagick to find TIF files so I used [GraphicsMagick](http://www.graphicsmagick.org/) instead. That worked. – Sukima Nov 06 '13 at 22:02
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Same situation. Reinstalling imagemagick was not enough--had to specify jpeg. – Rob Sobers Mar 15 '14 at 04:00
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awesome answer, Love the "identify -list format" so i can actually see whats missing. thanks! – Will May 17 '14 at 05:27

deepwinter · Answer 2 · 2015-07-28T14:34:52.230

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for me:

 brew reinstall imagemagick --with-libtiff

saved the day when dealing with a similar problem, but for tiff files.

UPDATE: one year later and this remains the only way I can get tiff working properly in convert on MacOS X.

edited Jul 28 '15 at 14:34

answered May 05 '14 at 20:54

deepwinter

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installing this way was critical for me to get TIFF files working properly. A regular imagemagick install was not working. – nfriend21 Mar 01 '15 at 13:25
You can use `brew info imagemagick` to see what other options you can reinstall imagemagick with using brew. Very useful. – Jeremy S. Feb 09 '17 at 16:02
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`Warning: imagemagick: this formula has no --with-libtiff option so it will be ignored!` – Dorian Apr 29 '18 at 14:55

score 15 · Accepted Answer · edited Oct 18 '16 at 17:24

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substitude the × in -resize 600×600 with a capital X and it should work.

-resize 600X600

edited Oct 18 '16 at 17:24

Dorian

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answered Mar 06 '12 at 15:38

tgfuellner

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Didn't work for me: ERROR ArgumentError: Didn't recognise the geometry string 100X100 – Jonathon Horsman Apr 25 '12 at 15:38
that is so bizarre. it was working fine with the lowercase "x" until I started converting blob type files. I did what you said and everything worked again. – wle8300 Nov 04 '15 at 17:13

score 4 · Answer 4 · answered Apr 23 '19 at 01:03

on Ubuntu 16, I had to install the following first (this was not a dev machine but a server):

sudo apt-get install autoconf automake autotools-dev libtool pkg-config

then to enable the PNG and JPG delegates :

sudo apt-get install libpng12 libpng12-dev libjpeg libjpeg-dev

followed by

./configure

(Which should now show that the delegates are enabled)

and then rebuild (make clean && make then sudo make install)

score 3 · Answer 5 · answered Jan 09 '15 at 12:13

3

I faced the same problem recently. After Googling for couple of hours, I found out that reason was a CONFLICT between php extentions Gmagick & Imagick. Commenting gmagick.so in php.ini fixed the problem. Hope this will save someone time :)

answered Jan 09 '15 at 12:13

R Sun

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score 3 · Answer 6 · edited Jun 20 '20 at 09:12

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redhat4.8, If you install from source, may be can try:

yum remove libjpeg

wget http://www.imagemagick.org/download/delegates/jpegsrc.v9a.tar.gz

sudo tar xvf jpegsrc.v9a.tar.gz -C /usr/local/src/

cd /usr/local/src/jpeg-9a

./configure --enable-shared

make

sudo make install

than turn in ImageMagick

cd ImageMagick-6.9.6-4

./configure

sudo make install

sudo ldconfig /usr/local/lib

edited Jun 20 '20 at 09:12

Community

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answered Nov 17 '16 at 06:48

wawa

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score 3 · Answer 7 · answered Jan 27 '22 at 00:03

3

I had similiar problem. I was missing delegates for JPEG, PNG :

apt install libjpeg-dev
apt install libpng-dev

cd ImageMagick-7.1.0-19/
./configure

Now check the output is jpeg=yes; png=yes

make
sudo make install

Now try convert or mogrify

mogrify -path "output/" -resize 1920X1920 some.jpeg

answered Jan 27 '22 at 00:03

John Tribe

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Thanks a lot! You saved me many hours of searching! – Andrey Apr 01 '22 at 09:45

Gerard ONeill · Answer 8 · 2021-04-13T20:52:12.660

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from Phillip Ingram somewhere on the interwebs:

in gentoo use

sudo EXTRA_ECONF="--with-png --with-jpeg" emerge imagemagick

This is slightly different than Jonathan Horseman's answer since it wasn't an error but rather a need to specify more during the installation.

But the identify command was very useful.

Hope this helps someone (and perhaps me in the future ;).

edited Apr 13 '21 at 20:52

answered Oct 21 '15 at 16:00

Gerard ONeill

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This doesn't seem to be valid syntax (unbalanced quotes, at the least), so it's not clear what was intended here, but it would be helpful. – TTT Aug 13 '18 at 22:25
@TTT Just remove the quote at the end – Shidouuu Apr 13 '21 at 15:33
Hopefully that was a cut and paste error with an extra quote, rather than a cut and paste error with something missing ;). Fixed. – Gerard ONeill Apr 13 '21 at 20:53

score 2 · Answer 9 · answered Nov 07 '16 at 18:01

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In my case, the solution was a matter of ending the command with *.{jpg,png} rather than *.

I believe the * was picking up / trying to convert hidden files.

answered Nov 07 '16 at 18:01

shaneparsons

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YOU are _the_ man - my mogrify script was failing because it had "no decode delegate for this image format `DB`. After a bit I realised it was trying to convert directories because I had left * at the end of the command rather than specifying the file name. – 5Diraptor Aug 04 '20 at 13:33

score 1 · Answer 10 · answered Jan 26 '17 at 09:49

I have encountered a similar problem with TIFF files on ImageMagick v7.0.4-5 on Windows 7.

If this question concerns a Windows OS, then the cause is that Windows can't find the Jpeg (in my case, TIFF) file library (DLL).

Cause

I had installed ImageMagick without adding it to the Windows $PATH.

Error message

This resulted in error

identify: unable to load module 'C:\Program Files\ImageMagick-7.0.4-Q16\modules\coders\IM_MOD_RL_TIFF_.dll':
The specified module could not be found.
 @ error/module.c/OpenModule/1279.
identify: no decode delegate for this image format `TIFF'
 @ error/constitute.c/ReadImage/509.

Solution

Re-install ImageMagick and do add it to the $PATH, so that it can find libtiff. Restart your command shell as well.
First cd into ImageMagick's install folder before executing it.

score 1 · Answer 11 · answered Dec 07 '21 at 00:19

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Another reason for this error to show up is when the file you're trying to convert has no extension.

This may happen, for example, in a Node.js application using multer with the default configuration.

answered Dec 07 '21 at 00:19

Alexander Korostin

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score 0 · Answer 12 · answered Aug 22 '19 at 04:59

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i had the problem and i forgot put to obj downloaded photo against i put path.

file_get_contents($pathToPhoto)

maybe someone help :[

answered Aug 22 '19 at 04:59

Kamil Dąbrowski

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ImageMagick no decode delegate

12 Answers12

Cause

Error message

Solution

Linked