Search found 7 matches

by PeterUK
2013-04-16T03:39:48-07:00
Forum: MagickWand for PHP
Topic: Preserving Alpha with MagickCompositeImage
Replies: 5
Views: 30243

Re: Preserving Alpha with MagickCompositeImage

You are writing to a PNG24 format... that format has no transparency. so any transparency left after the compositions will be lost (making the hidden fully-transparent color visible). Try using PNG32 PS; I would move the 'SetFormat' to just before you write as that is where it is needed. Yes it can...
by PeterUK
2013-04-15T11:12:17-07:00
Forum: Users
Topic: Interpolated lookup gradients with colour weighting
Replies: 8
Views: 8276

Re: Interpolated lookup gradients with colour weighting

Unfortunately I don't really have the luxury of using the scripts as my code needs to work through PHP without exec().

I would appreciate some help with this though:
viewtopic.php?f=10&t=23180
by PeterUK
2013-04-14T05:23:10-07:00
Forum: MagickWand for PHP
Topic: Preserving Alpha with MagickCompositeImage
Replies: 5
Views: 30243

Re: Preserving Alpha with MagickCompositeImage

Thanks, I already tried that and I tried setting it to the border image as well.

I also tried this:

Code: Select all

MagickSetImageAlphaChannel($main_image, MW_ActivateAlphaChannel);
MagickSetImageAlphaChannel($border_img, MW_ActivateAlphaChannel);
For both and that didn't work either.
by PeterUK
2013-04-13T09:05:18-07:00
Forum: MagickWand for PHP
Topic: Preserving Alpha with MagickCompositeImage
Replies: 5
Views: 30243

Preserving Alpha with MagickCompositeImage

I'm using MagickCompositeImage to read in a "border" image which has some partial transparency in it, but when I composite it onto my background, the partial transparency is turned to black, but the fully transparent parts are still transparent. Any tips on what I'm doing wrong? // Read in images $i...
by PeterUK
2013-04-12T07:11:26-07:00
Forum: Users
Topic: Interpolated lookup gradients with colour weighting
Replies: 8
Views: 8276

Re: Interpolated lookup gradients with colour weighting

Thanks for the links there. Here are some comparison images with descriptions. So this is the original Photoshop image, the gradient proportions are like so (in PHP array format since it's easily readable and what I've been using), where the array keys are percentages: $colours = array( 5 => array(2...
by PeterUK
2013-04-10T17:54:10-07:00
Forum: Users
Topic: Interpolated lookup gradients with colour weighting
Replies: 8
Views: 8276

Re: Interpolated lookup gradients with colour weighting

Thanks very much for your reply. I have already tried method 1 and you are exactly correct, it produces these saw-tooth type gradients. This is also the same when I generate my own gradient using PHP GD. This is actually my first time using ImageMagick at all (just today) and I find the documentatio...
by PeterUK
2013-04-10T07:04:22-07:00
Forum: Users
Topic: Interpolated lookup gradients with colour weighting
Replies: 8
Views: 8276

Interpolated lookup gradients with colour weighting

Hi, I've read a few topics like this: http://www.imagemagick.org/discourse-server/viewtopic.php?f=1&t=19812 And while that one does have a solution at the bottom, it's not really what I'm looking for. The colours sort of fade into eachother because of the method used and it is not a real gradient. N...