Question

12

How to add support for the JPEG image format

rated 0 times [ 12] [ 0] / answers: 1 / hits: 81300 / 2 Years ago, tue, october 18, 2022, 6:18:26

After installing Imagemagick, I've tested it with jpg image, like this:

identify 1.jpg

But, I got this result:

identify: no decode delegate for this image format `1.jpg' @ error/constitute.c/ReadImage/550.

Then, I tried to add support for JPEG format by:

yum install libjpeg libjpeg-devel

but, I got:

Setting up Install Process

No package libjpeg available.

No package libjpeg-devel available.

Nothing to do

I thought I need to update the apt-get, I did:

apt-get install libjpeg libjpeg-devel

but, I got:

Reading package lists... Done

Building dependency tree       

Reading state information... Done

E: Unable to locate package libjpeg

E: Unable to locate package libjpeg-devel

Is there an easy way to get those libraries installed ? I am using Ubuntu 12.04.

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terose

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answered 2 Years ago atetamme · Accepted Answer

I fixed the problem by installing from source the jpeg encoding library available at http://www.ijg.org/files/jpegsrc.v8c.tar.gz.

cd /usr/local/src

tar xvfz jpeg-8c.tar.gz

cd jpeg-8c

./configure --enable-shared --prefix=$CONFIGURE_PREFIX

make

sudo make install

Then I re-installed ImageMagick from source:

cd /usr/local/src

tar xvfz ImageMagick-6.6.9-5.tar.gz

cd ImageMagick-6.6.9-5

export CPPFLAGS=-I/usr/local/include

export LDFLAGS=-L/usr/local/lib

./configure --prefix=/usr/local --disable-static --with-modules --without-perl --without-magick-plus-plus --with-quantum-depth=8 --disable-openmp

make

sudo make install

Now its working, I've tested it like this:

sam@ubuntu:~/RubymineProjects/project/tmp$ identify 1.jpg

1.jpg JPEG 128x106 128x106+0+0 8-bit sRGB 2.22KB 0.000u 0:00.000