Mikolaj Machowski on wrote... | Hello, | | Anthony on his incomparable pages writes very much about increasing size | of image and how to get the best results but relatively little about | decreasing size. | | What is the best way(s) to achieve that? | Actually I write about both on the resize page.
However for heavy resizing smaller, there is a seperate page. IM Examples, thumbnails http://imagemagick.org/Usage/thumbnails/ | To get decent results when doing transition from 4000x4000 tiff to | 1000x1000 jpg I am doing something like that: | | convert pic.tiff -depth 8 -density 72 -resize 1000x1000 -filter lanczos | -unsharp 1x1+0.6 -sampling-factor 1x1 -quality 90 pic.jpg | | If I want better result I can make it in two or three steps and | manipulation unsharp mask. Any ideas how to do it better? | The -depth would do nothing in the above command. while -density only sets the image density for the output image, so probably should be given at the end with -sampling-factor. The -filter setting however must be specified BEFORE the -resize command!!! It is also the default for image shrinking when no transparency is involved, so it is not even needed!!! Anthony Thyssen ( System Programmer ) <[EMAIL PROTECTED]> ----------------------------------------------------------------------------- "Mr. Worf, scan that ship." "Aye, Captain... 300 DPI?" ----------------------------------------------------------------------------- Anthony's Home is his Castle http://www.cit.gu.edu.au/~anthony/ _______________________________________________ Magick-users mailing list [email protected] http://studio.imagemagick.org/mailman/listinfo/magick-users
