Jump to content

[SOLVED] PHP GD adjust transparency after imagecreatefrompng()

Recommended Posts

How do you change transparency if your source was not a fill color? In this example the transparency is changed for a fill color but I dont see how you could use this function to change the transparency if your source is from an image: http://is.php.net/ma...locatealpha.php The only thing I could see that might be able to be manipulated to work is the imagefilter() function. however none of the filtertype parameters are for transparency directly, but transparency can be passed to the other filtertypes, so I was thinking maybe the transparency could be changed in a roundabout way or maybe I am totally off and there is a better way to use PHP GD to adjust transparency. http://is.php.net/ma...imagefilter.php Any idea, suggestions appreciated :)EDIT: DOH! should have read the user comments on the bottom of the imagefilter page, somebody posted a custom function for transparency on the fly. EDIT: Custom Function WORKS PERFECT! exactly what I needed

Edited by xekon

Share this post

Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Create New...