Search found 6 matches

by jsp
2013-02-13T09:38:02-07:00
Forum: Digital Image Processing
Topic: future of image enlargement?
Replies: 61
Views: 118382

Re: future of image enlargement?

@NicolasRobidoux: Interesting -- I haven't seen this before. Thanks!
by jsp
2013-02-13T09:34:11-07:00
Forum: Announce
Topic: RCM Tools Free Image Processing Site
Replies: 0
Views: 17652

RCM Tools Free Image Processing Site

I am pleased to announce our new RCM tools website which allows one to interactively apply recursive conditional means (RCM) methods to images: http://rcm.cps.utexas.edu/ Current applications include denoising and enlargement. The site's primary intention is to provide a way for developers to compar...
by jsp
2013-02-13T09:07:19-07:00
Forum: Digital Image Processing
Topic: future of image enlargement?
Replies: 61
Views: 118382

Re: future of image enlargement?

Our vision lab at the University of Texas develops point prediction algorithms, including enlargement, that use natural scene statistics. This free site that we recently created allows you to enlarge images using this method: http://rcm.cps.utexas.edu We also have a qualitative comparison of this ch...
by jsp
2011-06-14T05:59:37-07:00
Forum: Users
Topic: gimp png's are much smaller than im png's
Replies: 11
Views: 25930

Re: gimp png's are much smaller than im png's

I'll use the current solution, but I am happy to provide links to a few of the images. https://docs.google.com/leaf?id=0B2fAsWEYM9lyYjgzMzAxMjctY2Y5ZC00Y2Q0LThlZDEtNjlhMzE3ZGY4Njdj&hl=en_US&authkey=CMPD25UP https://docs.google.com/leaf?id=0B2fAsWEYM9lyZWIyODhmNDctNGNmYy00MGMyLTgzZTktZmVkZGM0Y2YzZjMy...
by jsp
2011-06-13T18:27:13-07:00
Forum: Users
Topic: gimp png's are much smaller than im png's
Replies: 11
Views: 25930

Re: gimp png's are much smaller than im png's

I tried -quality 90, but that didn't help. pngcrush, on the other hand, does the trick. The IM that came with my FC12 distribution compressed the files down smaller without using pngcrush, whereas the IM that is installed in my current distribution, FC14, requires calling this extra application. Isn...
by jsp
2011-06-13T14:30:42-07:00
Forum: Users
Topic: gimp png's are much smaller than im png's
Replies: 11
Views: 25930

gimp png's are much smaller than im png's

Here I demonstrate that gimp's conversion from pgm to png yields a considerably smaller png file than IM's conversion. I tried using the -quality option (-quality 1, -quality 100), but it didn't help. $ convert -v | head -1 Version: ImageMagick 6.6.4-1 2010-12-17 Q16 http://www.imagemagick.org $ ls ...