sfThumbnailPlugin PNG image type resize problem

[chainas]

Hello,

i use sfThumbnail + sfMediaLibrary plugins to upload and resize images for my website. But i have a big problem, when i try to resize *.png type file with transparent background. Are there any possiblity to make thumbnail transparented too. Because now, all *.png file are made with black or white backgroun.

Thanks

[chainas]

Maybe now anybody got solution ?

[joshiausdemwald]

sfFilebasePlugin supports resizing transparent images and thumbnail generation.

The thing is done so far, but you'll have to learn it's usage (But it is simple, i promise.) Also shipped with the plugin is a backend module which unfortunately is still in developement, so don't rely on it. But the rather core plugin should fit your needs.

Code: Select all

$f = sfFilebasePlugin::getInstance();
$image = $f['path/to/image.jpg'];
$tn = $image->getThumbnail(array('width'=>100));
...


This is NOT an commercial for the crap i wrote. Ok, perhaps only a little bit ~ ~ I'd love to hear about your experiences if you decide to use it. It's still in beta state so be warned. If you discovered an issue, feel free to tell me so that i can fix it.

[chainas]

I don't think that it is the best solution. But now i have only this ~ ~

It is very strange, that such major bug, is not fixed...

[joshiausdemwald]

Ok, i am not supposed to agree with you - but for simple image manipulation stuff the "native" plugin is the best way to do so - so i probably have to. Thus "my" sfFilebasePlugin is intended to do much more, and in a more centralized way - so everything is at one place, not diversed on fileValidators, thumbnail generators and so on... but thats another story, as i mentioned: This is not a commercial^^

I recently saw a ticket about that lack which i think is not a bug but a lack of gd library. Resizing images with transparent backgrounds with gd library isn't that trivial - there are a few workarounds, but beware of the rendering quality.

Resizing by using gdlib + transparency is only possible by using imagecopyresized() wich does not do any subpixel rendering. So your beautiful 32 bit rgb+alpha pngs may look crappy after all.

With image magick it is no problem - "my" plugin does through the imagick extension, the thumbnailPlugin by doing system calls. Don't ask me about which way is better - i simply do not know^^.

I am of the opinion that if you'll use the image magick adapter of the thumbnail plugin, you will get the result you expected.

Greetings,
Joshi

[chainas]

Huh, i will try to use image magic adapter. But it not helps, i will try Your plugin ~ ~ It would be very nice to contact You by email. My email: chainas{at}gmail{dot}com

[joshiausdemwald]

I guess it will work fine if you'd use the imagick adapter. But despite of that, if you really want to give the filebase plugin a try: You are very welcome to contact me by using the mail address published with the plugin: johannes heinen at gmail com.

I'd rather prefer to discuss issues/bug reports and comments on the api in the message board so that potentially interested people can also take a look on it ~ ~

[shakir33]

Hello gays,

here there is a solution for the initial problem with sfThumbnailPlugin.

http://www.codemonkeyjava.com/2011/11/2 ... ailplugin/

i tried it and it work for me