Legacy ImageMagick Discussions Archive

Hmmm.... I tried but it did not seem to help. Is there any way to check the info of the png file to see what virtual canvas if any there is? Also, perhaps the info of the file would reveal the possible culprit here the same as you can run info and grep the histogram to see the transparency informat...

I don't know if this is relevant or not, but perhaps your png image has a virtual canvas and so it needs to be removed using +repage. See if that helps?

try adding -type truecolor

try disabling the alpha, dither, then re-enable the alpha convert orig.png -alpha off -colors 256 -alpha on orig256.png convert orig.png -alpha off -dither floydSteinberg -colors 256 -alpha on orig256floyd.png And if you don't want the alpha at the end, you can flatten the image: convert orig.png -a...

Don't know if this will help or perhaps you have seen this, but some information may be available or ordered at references at http://en.wikipedia.org/wiki/Digital_Picture_Exchange see also http://www.fileformat.info/format/dpx/egff.htm http://www.imagemagick.org/script/motion-picture.php http://www....

see http://www.imagemagick.org/Usage/channels/

The mean shift technique includes both spatial and color distances in its approach. Also. the paper I mentioned above allows merging of small regions into larger ones, thus providing another spatial aspect. Also I have seen papers (PDF) that include an additional spatial modification as well as colo...

Note that http://www.caip.rutgers.edu/~comanici/segm_images.html has C++ code available and uses the Mean Shift Algorithm that seems to be a standard these days for segmentation. If the licensing permits, someone may want to incorporate this code into IM.

I don't know much about bmp image, but see http://www.imagemagick.org/Usage/formats/#bmp

and also try

convert bmp32bit -background somecolor -flatten bmp24bit

I know very little about gif animations and especially doing them with an API. But you might glean some ideas from Anthony's pages on animations from the command line and especially the one on optimizations at http://www.imagemagick.org/Usage/anim_opt/ Your problem may be one of having more than 256...

You are correct, you have to host the image elsewhere and link it in. From your images, I don't see why you need to use an overlay. I can get very close with just the following: convert glam_original.jpg -blur 0x0.6 -set option:modulate:colorspace HSB -modulate 115 glam_orig_b0p6_m115.jpg http://www...

without seeing the image you are working on it is hard to know exactly. But for starters you forgot to add -composite. For compositing see: http://www.imagemagick.org/Usage/compose/ You also need to put something in the alpha channel. So see http://www.imagemagick.org/Usage/basics/#alpha http://www....

In line with Anthony's comments. See also

http://www.leptonica.com/color-segmentation.html
http://www.caip.rutgers.edu/~comanici/segm_images.html
http://ij-plugins.sourceforge.net/plugi ... index.html
http://www.leet.it/home/lale/joomla/com ... Itemid,50/

do you have the tif delegate library installed?

try something like this. Using 512x512 mandril2.png and cropping out 128x128 tiles. This makes 16 tiles at level A and 4 tiles at level B. convert mandril2.png \ \( -clone 0 -crop 128x128 +repage -write mandril2A.jpg \) \ \( -clone 0 -scale 50% -crop 128x128 +repage -write mandril2B.jpg \) \ null: I...