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# This file contains the preprocessors
# Do not modify this on your own unless you have read the manual and know what you're doing
# Normalizes a PNM
preprocessor normalize {
command = pnmnorm
}
# Inverts a PNM
preprocessor invert {
command = pnminvert
}
# Converts PPM (Color PNM) to PGM (Greyscale PNM)
preprocessor ppmtopgm {
command = ppmtopgm
}
# converts PNM to TIFF (this is used for tesseract)
preprocessor maketiff {
command = pnmtotiff
args = -color -truecolor
}
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