On Wednesday 14 June 2006 20:12, Bruce Marshall wrote:
On Wednesday 14 June 2006 07:29, Per Jessen wrote:
does anyone know how to use the -white-threshold option of ImageMagick::convert?
/Per Jessen, Zürich
I assume you've read the docs in /usr/share/docs/packages......
I read up on the threshold value and not only don't understand it, I can't even figure why it would ever be used.... :-)
As the doc says: it forces all pixels brighter than the threshold value to be white. I can see where it might be useful on a scanned image, where you have any number of shades of off-white, you'd want to have a uniform colour so they can be manipulated easier. You also have the converse --black-threshold which makes all pixels darker than the threshold value be black -- Check the headers for your unsubscription address For additional commands send e-mail to suse-linux-e-help@suse.com Also check the archives at http://lists.suse.com Please read the FAQs: suse-linux-e-faq@suse.com