Legacy ImageMagick Discussions Archive

I am trying to extract images in CentOS machine using ImageMagick's convert command as below:

1)convert -coalesce /mnt/temp/giphy.gif /mnt/temp/123.png : This command works and generates the images.

2)convert -coalesce http://cdn.abcdf.com/p/f7/81/d3/40/f781 ... 7cf3f8.gif /mnt/temp/123.png : While executing this command I am getting error mentioned as below:

convert: unable to open image `//cdn.adnxs.com/p/f7/81/d3/40/f781d34031e6882840eaa6dc937cf3f8.gif': No such file or directory @ error/blob.c/OpenBlob/2701.
convert: no decode delegate for this image format `HTTP' @ error/constitute.c/ReadImage/504.
convert: no images defined `/mnt/ephemeral2/creative_report/temp/123.png' @ error/convert.c/ConvertImageCommand/3258

I tried reinstalling ImageMagick from source but it was of no use. My ImageMagick version is 6.9.9-0. I have tried upgrading the version but still ended up getting same error.

Did you try either of the suggestions made in the comment to your post on Stackoverflow?

Running the code with double quotation marks as I suggested gives me 3 png file on a Windows computer.

I found the issue was because of missing libxml2-devel library. I uninstalled IM and installed it again with all required libraries. Below are the steps I followed:
1)cd (ImageMagick folder)
2)make uninstall
3)yum install tcl-devel libpng-devel libjpeg-devel ghostscript-devel bzip2-devel freetype-devel libtiff-devel libxml2-devel
4)wget ftp://ftp.imagemagick.org/pub/ImageMagi ... 9-0.tar.gz
5)tar xvfz ImageMagick-6.9.9-0.tar.gz
6)cd (the folder created)
7)./configure --prefix=/usr/local --with-bzlib=yes --with-fontconfig=yes --with-freetype=yes --with-gslib=yes --with-gvc=yes --with-jpeg=yes --with-jp2=yes --with-png=yes --with-tiff=yes
8 )make clean
9)make
10)make install