问题
I am trying to convert PNGs to GIF using ImageMagick on my Ubuntu server. I used a PHP code to generate it however when I ran it, I received..
PHP Fatal error: Uncaught exception 'ImagickException' with message 'no decode delegate for this image format
Fatal error: Uncaught exception 'ImagickException' with message 'no decode delegate for this image format
Then I used: convert -list configure, on the libs, I didn't see either gif or png. So I researched a bit more, and found that I should remove and re-install Imagick..
So I tried sudo apt-get remove imagemagick, and then..
sudo apt-get install libperl-dev gcc libjpeg-dev libbz2-dev libtiff4-dev libwmf-dev libz-dev libpng12-dev libx11-dev libxt-dev libxext-dev libxml2-dev libfreetype6-dev liblcms1-dev libexif-dev perl libjasper-dev libltdl3-dev graphviz pkg-config
After it completed installing, I used wget http://www.imagemagick.org/download/binaries/ImageMagick-x86_64-apple-darwin15.0.0.tar.gz and got the latest version.
But then, I got totally lost. I uncompressed it using tar -xzf ImageMagick-x86_64-apple-darwin15.0.0.tar.gz. I was expecting to find ./configure in here, but I couldn't.
What am I missing or doing wrong? Am I completely out of track?
回答1:
You downloaded iOS binaries instead of sources. You need sources if you want to compile them by hand:
http://www.imagemagick.org/download/ImageMagick-6.9.3-0.tar.gz
With this file you will be able to compile ImageMagick with whatever image formats you want.
http://www.imagemagick.org/script/install-source.php
Edit: Step-by-step instructions
wget http://www.imagemagick.org/download/ImageMagick-6.9.3-0.tar.gz
tar xvzf ImageMagick-6.9.3-0.tar.gz
cd ImageMagick-6.9.3-0
./configure
Make sure that the output of the previous command shows this:
PNG --with-png=yes yes
And then:
make
sudo make install
sudo ldconfig /usr/local/lib
来源：https://stackoverflow.com/questions/34623741/imagick-no-decode-delegate-for-this-image-format