thumbnail created but with very low image quality

sgalmeida

greetings

I'm using a script to create a thumbnail of a JPEG image and show on my page. Here is the script

 
   $abc = imagecreatefromjpeg($_GET['ficheiro']);
    $def = imagecreate(174, 102);

imagecopyresized($def, $abc, 0, 0, 50, 50, 174, 102, 174, 102);

imagejpeg($def);

imagedestroy($abc);
imagedestroy($def);

but the thumbnail that is created/generated has very low image quality
Someone as any ideas about this? What I must do to make the thumbnail to have the same resolution as the source image so it have the max quality possible?

TIA

Almeida

GastonPHP

Which GD lib do you use?

The 3th argument of the function imagejpeg is quality:

int imagejpeg ( resource image [, string filename [, int quality]])

crimaniak

imagecreate -- Create a new palette based image (256 colors)

Use imagecreatetruecolor() instead

GastonPHP

crimaniak, you're right. PHP.net recommend the use of imagecreatetruecolor().
The function imagecreatetruecolor() requires GD 2.0.1 or later.

Mordecai

Before you make a post, you should read the bookmarked threads and FAQ for each of the sections.
This happened to be one of the links.

onion2k

Swap imagecopyresized for imagecopyresampled while you're there too..