Legacy ImageMagick Discussions Archive

Sorry to bring this one back up after so long, but, does anyone know how I can tell which MagickWand version number is associated with a particular change in http://www.imagemagick.org/script/changelog.php ? It looks like the change relating to this particular problem is for the commit: 2010-09-13 6 ...

Got it. Thanks for the clarification.

Hello,

When running multiple ImageMagick commands simultaneously, would the effect of setting MAGICK_THREAD_LIMIT limit each command individually? Or would all of the commands *together* use no more than MAGICK_THREAD_LIMIT threads?

Thanks

Hi all, I have some IMagick code which uses "extentImage" to pad an image and position it at one corning of the new expanded image. When testing on a system with a newer version of ImageMagick , however, the direction the offsets push the image seems to have changed. In both cases I am using the ...

Switching the order doesn't help either :\

I'm using pretty recent versions of both (ImageMagick 6.5.7-8 and IMagick 3.0.0).

Hi Fred, Thanks for the suggestion. I've tried using both of those methods, however, with no luck., e.g.: Generate a 50% opaque image: convert logo: -type PaletteMatte -channel Alpha -evaluate Divide 2 input.png Or, using IMagick: $logo = new Imagick("logo:"); $logo->setImageType(imagick::IMGTYPE ...

Suppose you have an image with an alpha channel and the opacity is set to 50%. Does anyone know how you can "flatten" the image to JPEG so that the image appears to be 50% transparent on a black background? Example: $im = new Imagick("50percent_opacity.png"); $im->setImageFormat("JPEG"); header ...

Okay, I found a way. In case anyone else is interested: // Read image into IM $image = new IMagick($input); $image->setImageFormat('PNG'); // Export as a binary string $intermediateStr = $image->getimageblob(); // Import image string into GD $gd = imagecreatefromstring($intermediateStr); // do some ...

Hi all, Background I have an interesting problem where I would like to be able to work with an image in Imagick, do some processing in GD, and then pass the image back to IMagick before finally writing it to disk. I know this sounds a bit indirect, but there is a reason: GD supports direct palette ...

Perfect!

It's funny: I had read about the -respect-parentheses switch, but at the time I didn't think it was what I needed. I never even though of using "+gravity"!

Thanks a lot for all of your help fmw. This is just what I was looking for

Best,

Hmm. still no luck. Result is same as a couple posts above.

Hi fmw, Thanks for the suggestions and for answering my questions. I spent some more time reading up on the links you sent me, and am much more comfortable with the structuring of commands, etc. :) I still have not had any luck unifying the two steps. I tried your suggesting of testing the initial 2 ...

Thanks for all of the information. convert \( start.png -gravity SouthWest -extent 512x512 \) \ \( mask.png -resize 113% -crop 512x67+604+17 +repage \) \ -alpha off -compose copy_opacity -composite final.png I did try this command, and it was *almost* what I wanted, however, the result seems to ...

Hi fmw, If this is all you need then try (as the mask image is not important) convert start.png -background none -gravity southwest -extent 512x512 result.png Sorry, I should have been more clear. The masking is an important part of the procedure, even though in the example images it is barely ...

Hi all, I'm having trouble combining a couple of operations, each of which involves some padding: Command 1: convert \( -resize '113%' -crop 512x67+604+17 mask.png \) -gravity SouthWest -extent 512x512 output1.png Command 2: convert start.png -gravity SouthWest -extent 512x512 output1.png -compose ...