# Requires: ImageInfo.pm plugin

ifplugin Mail::SpamAssassin::Plugin::ImageInfo

# you can do image to text, or image to html ratios 
rawbody         DC_IMG_HTML_RATIO       eval:image_to_text_ratio('all',0.000, 0.015)
describe        DC_IMG_HTML_RATIO       Low rawbody to pixel area ratio
score           DC_IMG_HTML_RATIO       1.0

body            DC_IMG_TEXT_RATIO       eval:image_to_text_ratio('all',0.000, 0.008)
describe        DC_IMG_TEXT_RATIO       Low body to pixel area ratio
score           DC_IMG_TEXT_RATIO       1.0

# you can determine pixel coverage (all or by image type)
body            __GIF_AREA_100K         eval:pixel_coverage('gif',100000,179999)
body            __PNG_AREA_100K         eval:pixel_coverage('png',100000,179999)
# body          __JPEG_AREA_100K        eval:pixel_coverage('jpeg',100000,170000)

# meta together something useful
meta            DC_GIF_UNO_MEDO         ( __GIF_ATTACH_1 && __GIF_AREA_100K )
describe        DC_GIF_UNO_MEDO         Message contains a single medium inline gif
score           DC_GIF_UNO_MEDO         1.00

meta            DC_GIF_MULTI_MEDO       ( __GIF_ATTACH_2P && __GIF_AREA_100K )
describe        DC_GIF_MULTI_MEDO       Message has 2+ inline gif covering medium area
score           DC_GIF_MULTI_MEDO       2.00

meta            DC_PNG_UNO_MEDO         ( __PNG_ATTACH_1 && __PNG_AREA_100K )
describe        DC_PNG_UNO_MEDO         Message contains a single large inline gif
score           DC_PNG_UNO_MEDO         1.00

meta            DC_PNG_MULTI_MEDO       ( __PNG_ATTACH_2P && __PNG_AREA_100K )
describe        DC_PNG_MULTI_MEDO       Message has 2+ inline png covering medium area
score           DC_PNG_MULTI_MEDO       2.00

# meta          DC_JPEG_UNO_MEDO        ( __JPEG_ATTACH_1 && __JPEG_AREA_100K )
# describe      DC_JPEG_UNO_MEDO        Message hash single medium inline jpeg
# score         DC_JPEG_UNO_MEDO        1.00

# meta          DC_JPEG_MULTI_MEDO      ( __JPEG_ATTACH_2P && __JPEG_AREA_100K )
# describe      DC_JPEG_MULTI_MEDO      Message has 2+ inline jpeg covering medium area
# score         DC_JPEG_MULTI_MEDO      2.00

endif