Re: Poor results with GD
| From: | Gianluca Baldo | Date: | Tue, 16 Apr 2002 08:22:49 +0000 |
| Subject: | Re: Poor results with GD | ||
| References: | 1 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-93146@lists.php.net to get a copy of this message | ||
Hi -
I recently used NetPBM libraries since a client was not satisfied with GD's
results.
You may want to have a look at PHP Gallery, a package which uses NetPBM
instead of Gd. I looked at it to get some idea on how to use NetPBM from PHP.
They have a comparison page:
http://www.menalto.com/projects/gallery/modules.php?op=modload&name=NetPbmVsGd&file=index
Cheers,
Gianluca
> I'm currently setting JPEG quality to 85%, hence the large file sizes.
> Normally, I'd be looking for better quality and file sizes about 70% of
> their current size. Some of the originals are scanned directly from the
> painting, which yields very high quality, some are taken with a digital
> camera (I could live with poorer quality on these).
>
> I'm using some functions I found in 'PHP and MySQL web development' with
> some modifications, so JPEGs are generated from uploaded files and stored
> on the server through an HTML form interface. Here's the core bit of the
> code:
>
> $src = ImageCreateFromJPEG($image);
> $dst = ImageCreate($tn_width,$tn_height);
> ImageCopyResized($dst, $src, 0, 0, 0, 0,
> $tn_width,$tn_height,$width,$height);
> ImageJpeg($dst, $path, $compression); //compression set to 85 here.
> ImageDestroy($src);
> ImageDestroy($dst);
>
> Mick
>
>
> -----Original Message-----
> From: Andrew Brampton [mailto:andrew@bramp.freeserve.co.uk]
> Sent: 15 April 2002 17:56
> To: Sear, Mick; php-general@lists.php.net
> Subject: Re: [PHP] Poor results with GD
>
>
> They looked ok to me, but I don't know what the orginals looked like.
>
> But the problem might be that your JPeg quality is set lower than you would
> like. You can increase it be setting a parameter in ImageJPEG() or most
> likly whatever function you are using
>
> Andrew
> ----- Original Message -----
> From: "Sear, Mick" <msear@epson.co.uk>
> To: <php-general@lists.php.net>
> Sent: Monday, April 15, 2002 4:32 PM
> Subject: [PHP] Poor results with GD
>
> > Not sure if anyone else uses GD much, but I've been experimenting with it
> > and PHP recently and I've found I get large file sizes and very 'aliased'
> > graphics.
> >
> > Can anyone suggest a fix/ alternative?
> >
> > You'll see what I mean if you look at www.msear.com/paintings/ where the
> > images are currently all generated with GD (but not for long, I think!)
> >
> > Cheers,
> > Mick
> >
> > --
> > PHP General Mailing List (http://www.php.net/)
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--
Gianluca Baldo
Mallorca 186 - 3º 1ª
08036 Barcelona (Spain)
tel/fax +34 93 454 93 24
http://www.phpauction.org
http://www.gianlucabaldo.com