Thank you so much! Taking the quotes away eliminates the error. :) The documentation for -deskew should probably be updated to read "Use '-set option:deskew:auto-crop /width/' to auto crop the image" (note the placement of the first single quote) instead of "Use -set 'option:deskew:auto-crop /width/' to auto crop the image." As the documentation is currently, I believe it says to quote it in the undesirable way.
~Andy Pete Whatever - el_suprem...@yahoo.co.uk wrote: > Hi Andy, > I think the problem is that you should not have 'option:deskew:auto-crop 10' > in quotes because it passes this string as one argument to IM. IM then > swallows up the following image filename (scan9.pnm) as if it was the > argument to option: and then it croaks because it is now expecting scan92.pnm > to be an existing image which it will read. > > Best Wishes > Pete > > > --- On Sat, 3/28/09, imagemagick.20.andromo...@spamgourmet.com > <imagemagick.20.andromo...@spamgourmet.com> wrote: > > >> From: imagemagick.20.andromo...@spamgourmet.com >> <imagemagick.20.andromo...@spamgourmet.com> >> Subject: [magick-users] -deskew with autocrop >> To: magick-us...@imagemagick.org >> Date: Saturday, March 28, 2009, 2:57 PM >> Hello! I am trying to use >> imagemagick to automatically rotate and crop >> a scanned image (the scanned page is a little bit >> crooked). The >> documentation for the '-deskew' option states: >> >> ----------------- >> >> >> -deskew /threshold/ >> >> straighten an image. A threshold of 40% works for most >> images. >> >> Use -set >> <http://www.imagemagick.org/script/command-line-options.php#set> >> 'option:deskew:auto-crop /width/' to auto crop the image. >> The set >> argument is the pixel width of the image background (e.g >> 40). >> >> ----------------- >> >> It is the note at the bottom that intregues me. I >> can't seem to get it >> to work though. Here are two commands (out of like >> 40) that I've tried >> so far: >> >> $ convert -deskew '40%' -set 'option:deskew:auto-crop 10' >> scan9.pnm >> scan92.pnm >> convert: missing an image filename `scan92.pnm' @ >> wand/convert.c/ConvertImageCommand/2710. >> >> and: >> $convert -set 'option:deskew:auto-crop 10' scan9.pnm >> scan92.pnm >> convert: missing an image filename `scan92.pnm' @ >> wand/convert.c/ConvertImageCommand/2710. >> >> Do any of you know how to do this? If not, do you >> know how to >> successfully find how to do it? :) >> >> Thank you! >> >> ~Andy >> >> >> >> _______________________________________________ >> Magick-users mailing list >> magick-us...@imagemagick.org >> http://studio.imagemagick.org/mailman/listinfo/magick-users >> >> > > > > > _______________________________________________ Magick-developers mailing list Magick-developers@imagemagick.org http://studio.imagemagick.org/mailman/listinfo/magick-developers
