Search found 8887 matches

by anthony
2006-03-19T22:23:03-07:00
Forum: Users
Topic: creating thumbnails / overwrite all with the same name
Replies: 0
Views: 9184

You mogrify with a format change. mogrify -format gif -resize 71x71! -border 1 -bordercolor #000000 *.jpg Note only one '!' is needed anywhere not in the middle of a number in the argument.. Change -resize to thumbnail to also strip profiles from the JPG image. See thumbnailing... http://www.cit.gu....
by anthony
2006-03-19T22:18:01-07:00
Forum: Users
Topic: Fonts, Aliasing, Transparency 6.2.5 vs 6.2.6
Replies: 9
Views: 33241

Saving images with transparency (fonts or otherwise) is dealt with in the IM examples at
http://www.cit.gu.edu.au/~anthony/graph ... ats/#trans
by anthony
2006-03-19T19:50:44-07:00
Forum: Users
Topic: gradient in foreground
Replies: 0
Views: 8880

I am not sure what you are attempting to do.

Prehaps you can find something like what you are in the IM examples.
See my signature.
by anthony
2006-03-19T19:44:58-07:00
Forum: Users
Topic: Resized images have jagged \ sawtooth edges
Replies: 4
Views: 21396

What is the IM version on your ISP. It looks like it is not anti-aliasing the resized pixels correctly. Probably a very old version.
by anthony
2006-03-19T19:11:35-07:00
Forum: Developers
Topic: "Feather"-ed optimization of animated GIFs
Replies: 9
Views: 38399

Does your image have transparency parts? Did you reduce the image to a single color table BEFORE the initial save to GIF. Doing this should avoid most color comparasion problems. Last friday I finished documenting the color comparistion problems as part of gif animation optimization. I do mention th...
by anthony
2006-03-19T18:33:41-07:00
Forum: Developers
Topic: How to print text vertically
Replies: 2
Views: 20754

-annotate -90x-90 'text'

will draw the text vertically. Or you can create a label: or caption:
then -rotate -90 to make the text vertical.
by anthony
2006-03-16T22:27:34-07:00
Forum: Announce
Topic: New GIF Optimization Operators, and Tutorial
Replies: 0
Views: 23286

New GIF Optimization Operators, and Tutorial

After much work, I have finally completed my new GIF animation Optimization Operators, as well has the tutorial on these new operators and GIF optimization in general on the IM example pages. Automatic Optimization of GIF Animations http://www.cit.gu.edu.au/~anthony/graphics/imagick6/anim_basics/#op...
by anthony
2006-03-16T22:27:06-07:00
Forum: Users
Topic: New GIF Optimization Operators, and Tutorial
Replies: 0
Views: 9354

New GIF Optimization Operators, and Tutorial

After much work, I have finally completed my new GIF animation Optimization Operators, as well has the tutorial on these new operators and GIF optimization in general on the IM example pages. Automatic Optimization of GIF Animations http://www.cit.gu.edu.au/~anthony/graphics/imagick6/anim_basics/#op...
by anthony
2006-03-15T17:25:28-07:00
Forum: Developers
Topic: TrueType fonts and IM
Replies: 5
Views: 25473

You need to list each font explictally in the type.xml file. I myself use linux, and have a program to locate and list all the fonts (truetype and postscript) on my system in my personal file. This is a script, whcih I occasionally tweek to handle odd or badly named fonts. I publish it on the IM Exa...
by anthony
2006-03-14T21:44:53-07:00
Forum: Developers
Topic: How to draw a completly transparent Shape
Replies: 2
Views: 11351

Add a Alpha/matte channel to the image first!
by anthony
2006-03-14T21:42:06-07:00
Forum: Developers
Topic: how to convert gif to png
Replies: 0
Views: 16464

That should work fine except for a couple of small points. One don't post to the devolpers forum, whcih is for bugs and requests, and future proposal discussions. post to the users forum. Second PNG quailit uses two digit numbers, each digit has a different meaning. 100 is non-sensical. See http://w...
by anthony
2006-03-14T21:38:03-07:00
Forum: Developers
Topic: Concert Text to Image
Replies: 0
Views: 13507

You sould use -size XxY xc: for canvas generation. not -resize! As for bad looking images. That is a GIF transparency problem, NOT a image problem. Output to PNG and look at the result! See http://www.cit.gu.edu.au/~anthony/graphics/imagick6/formats/#trans And next time use the users forum, not the ...
by anthony
2006-03-14T21:35:31-07:00
Forum: Developers
Topic: beginner question? pixel sampling
Replies: 0
Views: 14150

Yes wrong forum.

By simply try a 1x1 crop and output to a txt: image

convert image.png -crop 1x1+20+30 txt:-
by anthony
2006-03-14T21:33:47-07:00
Forum: Developers
Topic: Few problems
Replies: 0
Views: 13802

1.. ALl GIF images are indexed images. They all contain a limited 256 maximum (must be a power of 2) 8bit RGB color table, no transparency. If transparency is wanted, one color index is used to represent a single transparent color. Can be any color, uncluding a duplice of another color in the color ...
by anthony
2006-03-14T21:24:59-07:00
Forum: Developers
Topic: "Feather"-ed optimization of animated GIFs
Replies: 9
Views: 38399

I had the idea of comparing images in animation sequence, doing the difference, and then statistically disregard some pixels that exhibited only minor change in color. It is nothing new, I think it is called "feather" in PhotoShop and GIMP! Actually 'feather' is using a band of semi-trans...