André Gasser schrieb:[color=blue]
> hello newsgroup,
>
> I just discovered a weird effect in my php code. here is the flow of my
> code:
>
>
> 1. upload jepg file to server
> 2. create new (empty) jpeg file using imagecreatefromjpeg() function
> 3. use imagecopyresampled to resize src image and store in newly created
> image from step 2.
> 4. use imagejpeg to get new jpeg data
> 5. store that data in the mysql database
>
> NOW: when i use imagejpeg using 100% image quality, some images in the
> database are corrupt, but NOT ALL only some of them.
>
> when i reduce image quality to 60% i had no problem using a picture
> which hat problem with 100%. images are ok this way.
>
> does this have some logical explanation? is this a bug in the gd or
> something?
>
> I use PHP 5.0.2, GD bundled (2.0.28 compatible), and mysql 4.x
>
> I will analyze that code in more detail...
>
>
> thanx !
> andré
>
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WOW!
Images become good if I use the call:
imageinterlace($myimage, true);
the doc says, that in this way, a progressive jpeg is created.
they even get good if I use a quality of 100%!!
very strange......
can someone explain this behaviour to me? thx! :-)
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