On Sat, 8 May 2010 07:43:45 -0700 [email protected] wrote:
| >Hello, | > | >I have to trim big blank edges of pages of a scanned book (many many books | >in fact). The -trim option gives excellent results but it is possible to | >specify another option to make all pages have the same size? Something | >like -size but with the largest size of the set of images. | > | >Thank you, | >Sébastien | | | You will need to write a script to trim them all, | find their sizes, find the max size, then use | -extent to pad them all to the same size. Adjectivally if you can merge the pages together into one page, then trim, you can then use the resulting virtual canvas to do a 'Multiple Image Composition' (which understands virtual offsets) to trim all the pages in the same way as the combined page. See IM examples, Animation Modifications Layers Composition - alpha composition for image lists http://www.imagemagick.org/Usage/anim_mods/#composite Yes this is a odd place in IM examples, but it was developed with a list of multiple images (such as you get with animations) in mind. I should know, I developed and programmed it. You would use the 'combined' image as a single 'destination image' and then overlay all the other images onto that destination to automatically 'trim them the same as the 'destination image'. This is also the only case where image meta-data from the 'source' images (like comments, lables, etc) is preserved in the resulting list. Anthony Thyssen ( System Programmer ) <[email protected]> -------------------------------------------------------------------------- I smell a Wumpus! -- One of the first computer games. -------------------------------------------------------------------------- Anthony's Castle http://www.cit.griffith.edu.au/~anthony/ _______________________________________________ Magick-users mailing list [email protected] http://studio.imagemagick.org/mailman/listinfo/magick-users
