h1. Installing and using ImageMagick

Jun 23, 2015

*On my local Linux Mint (Ubuntu)

@apt-get install imagemagick perlmagick@

If package not found, then first do:
@apt-get update@
and then try the install again.



h2. EXIF Data

http://stackoverflow.com/questions/1708417/how-can-i-extract-exif-data-using-perlmagick

http://hacktux.com/read/remove/exif


may want:
@apt-get install libimage-exiftool-perl@

@exiftool coreopsis.jpg@ will provide some info about the image.

but this might be better:
@apt-get install jhead@

@jhead coreopsis.jpg@


if want to remove exif data from an image:

q.
After ImageMagick is installed, you will have /usr/bin/mogrify available. The mogrify command can be used to strip Exif data from images.

mogrify -strip imagename.jpg

If you need to process a large number of files, use find and xargs:

find ./folder_of_images -name '*.jpg' | xargs mogrify -strip
q..




hr.

Perl usage
http://www.imagemagick.org/source/examples.pl


hr.


did not need to execute these commands. 

@apt-get install libconfig-yaml-perl@

@perl -MCPAN -e 'install Image::Magick'


hr.

install CPAN
reload CPAN


hr. 

check Ubuntu version

@lsb_release -a@


h2. orientation

fence.Value 0th Row 0th Column
1 top | left side
2 top | right side
3 bottom | right side
4 bottom | left side
5 left side | top
6 right side | top
7 right side | bottom
8 left side | bottom
fence..


h2. Links

http://www.imagemagick.org/script/perl-magick.php

http://www.imagemagick.org/script/examples.php

http://www.imagemagick.org/source/examples.pl

http://www.graphicsmagick.org/perl.html

http://sylvana.net/jpegcrop/exif_orientation.html