Search found 8 matches

by lilith
2012-08-07T22:12:26-07:00
Forum: Users
Topic: Extract an Alpha channel
Replies: 7
Views: 25495

Re: Extract an Alpha channel

Hello,

I'm using 6.7.8.8.

And thanks, it works perfectly :)
Greetings.
by lilith
2012-08-07T13:15:57-07:00
Forum: Users
Topic: Extract an Alpha channel
Replies: 7
Views: 25495

Re: Extract an Alpha channel

Hello, Hum sorry for confusing, but you did not scan the good file: - The image that uses alpha is here: http://www.hostingpics.net/viewer.php?id=2101356optimized1.png - Here is the alpha data extracted by ImageMagick : http://www.hostingpics.net/viewer.php?id=982001alpha.png - Here is the alpha ...
by lilith
2012-08-07T10:17:07-07:00
Forum: Users
Topic: Extract an Alpha channel
Replies: 7
Views: 25495

Re: Extract an Alpha channel

Hi fmw42,

Your code works too, but it's not what i want.

Thanks,
Greetings.

[
Edit:
ImageMagick gives : http://www.hostingpics.net/viewer.php?id=693425zoom.png
I want : http://www.hostingpics.net/viewer.php?i ... omtrue.png
]
by lilith
2012-08-07T10:08:00-07:00
Forum: Users
Topic: Extract an Alpha channel
Replies: 7
Views: 25495

Extract an Alpha channel

Hi there, I want to extract an alpha channel from RGBA file. I used: convert -alpha extract "rgba.png" "alpha.png" or convert -separate -channel a "rgba.png" "alpha.png" It's not what i want. The file: http://www.hostingpics.net/viewer.php?id=2101356optimized1.png What it does : http://www ...
by lilith
2011-12-31T03:40:34-07:00
Forum: Users
Topic: Extend Pixels to replace some values
Replies: 1
Views: 3695

Extend Pixels to replace some values

Hello, I would like to extend a value of a pixel to the border of the image, which have to replace all 0,0,0 pixels. I would like to test different directions (from left/right, or top/bottom). To illustrate : It's the original image : http://imageshack.us/photo/my-images/442/logofilter4rgb.png ...
by lilith
2011-05-20T00:09:46-07:00
Forum: Users
Topic: Create a MultiColor Image
Replies: 6
Views: 10993

Re: Create a MultiColor Image

I've already tested that before posting. The proposed codes do not work for me, syntax seems to be incorrect. I'm running under Windows, with the lastest version. Maybe i do not know how to use it. I'm a IM noob user, but if i copy your codes to a batch file, it just does not work. For example ...
by lilith
2011-05-19T02:52:22-07:00
Forum: Users
Topic: Create a MultiColor Image
Replies: 6
Views: 10993

Create a MultiColor Image

Hello, I want to create a multicolored image as http://www.imagemagick.org/Usage/canvas/gradient_colormap.jpg I tried many commands, but not successfully :( My goal is to have maximum of uniques colors in the smallest possible definition. For example, i would have a 300x300 images with 90000 colors ...
by lilith
2010-10-06T23:52:59-07:00
Forum: Users
Topic: Reduce numbers of colors in a PNG24 with Alpha Channel
Replies: 1
Views: 5898

Reduce numbers of colors in a PNG24 with Alpha Channel

Hello everybody, Thanks in advance for your time. I want to reduce the number of colors in my PNG24 with alpha channel. To do that, i use the code : convert -colors 500 "image.png" "image.png" It works, but it also destroys the Alpha restitution. Is there a way to reduce colors in the RGB data only ...