image quality (using GD library)

[Christophe Cerbourg]

Hi,
I use GD library to generate images from photographs, approx this code :
$image_dst =
imagecreatetrue color($this->image_dst_x, $this->image_dst_y) ;
imagecopyresize d($image_dst, $image_src, 0, 0, 0, 0,
$this->image_dst_x, $this->image_dst_y, $this->image_src_x,
$this->image_src_y) ;
$result = @imagejpeg ($image_dst,
$this->file_dst_pathn ame,100);

but...
- generated image size is larger than the original photo's one
- generated image quality is rather bad

So I think I'm doing something wrong, but don't know what...
Thanks for any help !

Thanks also for telling me if there is a place (newsgroup) to specifically
discuss about GD library, I didn't find any on Boutell's site.

[Guest]

Re: image quality (using GD library)


"Christophe Cerbourg" wrote

you can view the source code of this script.

http://www.sephiroth.it/file_detail.php?id=131

bye Daniel

http://www.gizax.it

[Christophe Cerbourg]

Re: image quality (using GD library)

> you can view the source code of this script.[color=blue]
>
> http://www.sephiroth.it/file_detail.php?id=131[/color]

thanks !

[EnglishMan]

Re: image quality (using GD library)

Also might try resampling the image. The file is likely larger because
you save it with 100% quality (even if the original file is only 75%)
which can increase the size dramatically in some cases...