loadplugin FuzzyOcr /etc/spamassassin/FuzzyOcr.pm body FUZZY_OCR eval:fuzzyocr_check() describe FUZZY_OCR Mail contains an image with common spam text inside body FUZZY_OCR_WRONG_CTYPE eval:dummy_check() describe FUZZY_OCR_WRONG_CTYPE Mail contains an image with wrong content-type set body FUZZY_OCR_CORRUPT_IMG eval:dummy_check() describe FUZZY_OCR_CORRUPT_IMG Mail contains a corrupted image body FUZZY_OCR_KNOWN_HASH eval:dummy_check() describe FUZZY_OCR_KNOWN_HASH Mail contains an image with known hash priority FUZZY_OCR 900 ########### Plugin Configuration ############# #### Logging options ##### # Verbosity level (see manual) Attention: Don't set to 0, but to 0.0 for quiet operation. (Default value: 1) #focr_verbose 1 #focr_verbose 1 focr_verbose 2 # # Logfile (make sure it is writable by the plugin) (Default value: /etc/mail/spamassassin/FuzzyOcr.log) # obsoleted by weasel #focr_logfile /var/lib/FuzzyOcr/log ########################## ##### Wordlists ##### # Here we defined the words to scan for (Default value: /etc/mail/spamassassin/FuzzyOcr.words) focr_global_wordlist /etc/spamassassin/FuzzyOcr.words # # This is the path RELATIVE to the respektive home directory for the personalized list # This list is merged with the global word list on execution (Default value: .spamassassin/fuzzyocr.words) #focr_personal_wordlist .spamassassin/fuzzyocr.words ##################### # Set this to 1 if you are running a version < 3.1.4. # This will disable a function used in conjunction with animated gifs that isn't available in earlier versions (Default value: 0.0) #focr_pre314 0.0 # These parameters can be used to change other detection settings # If you leave these commented out, the defaults will be used. # Do not use " " around any parameters! # ##### Location of helper applications (path + binary) (Default values: /usr/bin/) ##### #focr_bin_giffix /usr/bin/giffix #focr_bin_giftext /usr/bin/giftext #focr_bin_gifasm /usr/bin/gifasm #focr_bin_gifinter /usr/bin/gifinter #focr_bin_giftopnm /usr/bin/giftopnm #focr_bin_jpegtopnm /usr/bin/jpegtopnm #focr_bin_pngtopnm /usr/bin/pngtopnm #focr_bin_ppmhist /usr/bin/ppmhist #focr_bin_convert /usr/bin/convert #focr_bin_identify /usr/bin/identify #focr_bin_gocr /usr/bin/gocr ############################################################################################ ##### Scansets, comma seperated (Default value: $gocr -i -, $gocr -l 180 -d 2 -i -) ##### # Each scanset consists of one or more commands which make text out of pnm input. # Each scanset is run seperately on the PNM data, results are combined in scoring. #focr_scansets $gocr -i -, $gocr -l 180 -d 2 -i - # # To use only one scan with default values, uncomment the next line instead #focr_scansets $gocr -i - # # Some example for more advanced sets # Thisone uses the first the standard scan, then a scanset which first reduces the image to 3 colors and then scans it with custom settings # and then it scans again only with these custom settings # NOTE: This is for advanced users only, if you have questions how to use this, ask on the ML or on IRC #focr_scansets $gocr -i -, pnmnorm 2>$errfile | pnmquant 3 2>>$errfile | pnmnorm 2>>$errfile | $gocr -l 180 -d 2 -i -, $gocr -l 180 -d 2 -i - ######################################################################################### ##### Various Score/Scan settings ##### # Timeout for the plugin, in seconds. (Maximum runtime of the plugin) (Default value: 10) #focr_timeout 10 focr_timeout 30 # # Default detection treshold (see manual) (Default value: 0.3) (Can be changed on a per word basis in the wordlist). #focr_threshold 0.3 # # This is the score for a hit after focr_counts_required matches #focr_base_score 4 focr_base_score 1 # # This is the additional score for every additional match after focr_counts_required matches (Default value: 1) #focr_add_score 1 focr_add_score 0.1 # # This is the score to give for a wrong content-type (e.g. JPEG image but content type says GIF) (Default value: 1.5) #focr_wrongctype_score 1.5 focr_wrongctype_score 0.5 # # This is the score to give for a corrupted image (This currently affects only GIF images) (Default value: 2.5) #focr_corrupt_score 2.5 focr_corrupt_score 0.5 # # This is the score to give for a corrupted unfixable image (This currently affects only GIF images) (Default value: 5) #focr_corrupt_unfixable_score 5 focr_corrupt_unfixable_score 0.5 # # This is used to disable the OCR engine if the message has already more points than this value (Default value: 10) #focr_autodisable_score 10 # # Number of minimum matches before the rule scores (Default value: 2) #focr_counts_required 2 # # Specifies, how many frames an animated gif must contain, so the second (less resource consuming) animated gif test is used. (Default value: 5) #focr_gif_max_frames 5 ####################################### ##### Image Hash Database settings (Experimental, disabled by default) ##### # # Set this to 1 to enable the Image Hash database feature (Default value: 0.0) #focr_enable_image_hashing 0.0 # # The score is saved with the hash in the database, so no extra scoring for a db hit is required. # # If the image hash database feature is enabled, specify the file here to use as database (Default value: /etc/mail/spamassassin/FuzzyOcr.hashdb) #focr_digest_db /etc/mail/spamassassin/FuzzyOcr.hashdb # # Automatically add hashes of spam images recognized by OCR to the Image Hash database, to disable, set to 0.0 (Default value: 1) #focr_hashing_learn_scanned 1 # ######################################################################