Search found 12163 matches
- 2010-02-24T19:18:44-07:00
- Forum: Users
- Topic: cr2 to png problem
- Replies: 5
- Views: 15165
Re: cr2 to png problem
Compression in jpeg and cr2 is optimised for photographs. Png compression is not optimised for photographs, so I would expect the file size to be larger. You can compare the results from ImageMagick and gthumb: identify -verbose fromIm.png >fromIm.txt identify -verbose fromGthumb.png >fromGthumb.txt...
- 2010-02-24T05:32:47-07:00
- Forum: Users
- Topic: Monochrome Memory Reduction?
- Replies: 7
- Views: 16062
- 2010-02-24T05:29:58-07:00
- Forum: Users
- Topic: JPG with Clipping Path to PNG with transparency
- Replies: 27
- Views: 58291
Re: JPG with Clipping Path to PNG with transparency
It's fine on 6.4.5. Your version is very old; I suggest you upgrade it and try again.
- 2010-02-24T05:07:38-07:00
- Forum: Users
- Topic: Overlaying a picture on a collage/montage (with mogrify)
- Replies: 21
- Views: 45445
Re: Overlaying a picture on a collage/montage (with mogrify)
See http://www.imagemagick.org/script/command-line-processing.php#geometry The format is one of: axb+c+d axb+c-d axb-c+d axb-c-d Where a,b,c,d are integers. Generally: a is width b is height c is x-offset, so it may be negative d is y-offset, so it may be negative I don't suppose c and d would make ...
- 2010-02-24T04:54:36-07:00
- Forum: Users
- Topic: JPG with Clipping Path to PNG with transparency
- Replies: 27
- Views: 58291
Re: JPG with Clipping Path to PNG with transparency
This will do it:
/usr/bin/convert bild.JPG -alpha set -channel alpha -clip -negate temp.png
/usr/bin/convert temp.png -channel Alpha -negate c.png
Smarter folks than me will simplify it.
Edit: +trim +repage after the final -negate, if you want.
/usr/bin/convert bild.JPG -alpha set -channel alpha -clip -negate temp.png
/usr/bin/convert temp.png -channel Alpha -negate c.png
Smarter folks than me will simplify it.
Edit: +trim +repage after the final -negate, if you want.
- 2010-02-24T03:08:31-07:00
- Forum: Users
- Topic: bmp2jpg with * wildcard
- Replies: 6
- Views: 18389
Re: bmp2jpg with * wildcard
Yes, when used in a batch file, %~dp0 will be translated by the Windows command shell into the directory and path of the batch file. You could then use convert to expand the "*" thus (in a batch file): convert %~dp0*.bmp %~dp0thing%%03d.jpg and you will get thing000.jpg, thing001.jpg etc. ...
- 2010-02-23T14:38:33-07:00
- Forum: Users
- Topic: bmp2jpg with * wildcard
- Replies: 6
- Views: 18389
Re: bmp2jpg with * wildcard
I think IM's globbing is limited to "*" and "?". "%~dp" is a Windows construct for FOR loops. Even if this globbing worked, it wouldn't do what you wanted, as convert can't take a list of filenames and convert each one to a different output. (Well, it could, but with a ...
- 2010-02-23T13:55:05-07:00
- Forum: Users
- Topic: Possible to tell if an image is a drawing?
- Replies: 2
- Views: 7074
Re: Possible to tell if an image is a drawing?
I don't really understand the problem. Why not pad all the uploaded images to 3:2 aspect ratio? Trying to get ImageMagick (or other software) to determine whether trimming an image would make it "look awful" sounds like a hard problem. Can you post examples of images that can, or shouldn't...
- 2010-02-22T15:48:36-07:00
- Forum: Users
- Topic: Error log on linux?
- Replies: 3
- Views: 15989
Re: Error log on linux?
Constructs like
may also be useful
Code: Select all
convert bad.junk out.png 2>error.log
- 2010-02-22T15:26:41-07:00
- Forum: Users
- Topic: Selectively manipulating HSB channels
- Replies: 3
- Views: 9956
Re: Selectively manipulating HSB channels
If you post a URL to your image, we can try to come up with something. When levels works in RGB space (which I think it always does), setting "white" must set the maximum value in the three channels. similarly black. So white or black will lose the hue information. I suspect the way to do ...
- 2010-02-22T08:48:22-07:00
- Forum: Users
- Topic: 3d Shadows using Affine Shears
- Replies: 6
- Views: 16346
Re: 3d Shadows using Affine Shears
That's a very old version of IM. fmw's script works fine for me in a slightly less old 6.4.5 on Ubuntu.
I suggest you update IM.
I suggest you update IM.
- 2010-02-22T08:13:03-07:00
- Forum: Users
- Topic: 3d Shadows using Affine Shears
- Replies: 6
- Views: 16346
Re: 3d Shadows using Affine Shears
What OS? What version of IM? Can you provide the URL of your image?
- 2010-02-22T03:14:26-07:00
- Forum: Users
- Topic: Density question
- Replies: 3
- Views: 10555
Re: Density question
Image viewers may not use the same assumed DPI for your screen.
You might use the "-verbose" option of identify to get the density, and hence the physical dimensions.
Then "acroread foo.pdf", File, Properties, Description will tell you if the physical dimensions are the same.
You might use the "-verbose" option of identify to get the density, and hence the physical dimensions.
Then "acroread foo.pdf", File, Properties, Description will tell you if the physical dimensions are the same.
- 2010-02-22T01:52:48-07:00
- Forum: Users
- Topic: Density question
- Replies: 3
- Views: 10555
Re: Density question
I suspect you are comparing apples with oranges, "judging by eye". What is the density of your png file? identify -verbose foo.png You might get something like: Geometry: 1280x720+0+0 Resolution: 72x72 Print size: 17.77x10.00 Units: PixelsPerInch Then I would expect convert foo.png foo.pdf...
- 2010-02-22T00:21:50-07:00
- Forum: Users
- Topic: error converting PDF->JPG
- Replies: 6
- Views: 15425
Re: error converting PDF->JPG
Those are questions about ghostscript, not ImageMagick. I suggest you ask in ghostscript forums.
(Hint: you might search for "ghostscript Unable to substitute for font".)
(Hint: you might search for "ghostscript Unable to substitute for font".)