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FuzzyOcr on Debian sarge

Jan Wagner

Jan Wagner

• 1 min read

This article covers the installation of FuzzyOcr on Debian sarge including update to packages from backports.org. For informations how to install packages from bpo see here!

Update spamassassin:

# aptitude -t sarge-backports install spamassassin

Keep in mind, that there are essential changes in configuration, so you need to check it to match your needs!

Install other required packages:

# aptitude -t sarge-backports install gocr libungif-bin \
	libimage-exif-perl libimage-exiftool-perl libstring-approx-perl \
	imagemagick netpbm

Install and patch FuzzyOrc:

# cd /usr/local/src/
# wget \
	http://users.own-hero.net/~decoder/fuzzyocr/fuzzyocr-2.3b.tar.gz
# tar xzvf fuzzyocr-2.3b.tar.gz
# wget \
	http://www200.pair.com/mecham/spam/fuzzyocr-23b-hashdb-poison.patch
# cd FuzzyOcr-2.3b
# patch FuzzyOcr.pm < ../fuzzyocr-23b-hashdb-poison.patch
# cp FuzzyOcr.pm /usr/share/perl5/Mail/SpamAssassin/Plugin/
# cp FuzzyOcr.cf /etc/spamassassin/
# cp FuzzyOcr.words.sample /etc/spamassassin/FuzzyOcr.words

Configure FuzzyOcr:

# echo "loadplugin FuzzyOcr /usr/share/perl5/Mail/SpamAssassin/Plugin/FuzzyOcr.pm" \
	 >> /etc/spamassassin/v310.pre
# sed -i \
	"s/^loadplugin\ FuzzyOcr\ FuzzyOcr.pm/#loadplugin\ FuzzyOcr\ FuzzyOcr.pm/" \
	 /etc/spamassassin/FuzzyOcr.cf
# sed -i \
	"s/^#focr_base_score\ 4/focr_base_score\ 2/" \
	/etc/spamassassin/FuzzyOcr.cf
# sed -i \
	"s/^focr_logfile\ \/etc\/mail\/spamassassin/focr_logfile\ \/var\/log" \
	 /etc/spamassassin/FuzzyOcr.cf

For SpamAssassin less than 3.1.4:

# sed -i "s/^focr_pre314\ 0.0/focr_pre314\ 1.0/" \
	/etc/spamassassin/FuzzyOcr.cf

Create Logfile:

# touch /var/log/FuzzyOcr.log
# chown nobody:nogroup /var/log/FuzzyOcr.log
# chmod 600 /var/log/FuzzyOcr.log

Verify Spamassassin config:

# spamassassin --lint

see also http://www200.pair.com/mecham/spam/image_spam.html

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