php thumbnail - creates a grainy back and white image

Question

Hi,

My code below creates the thumb but it is pretty grainy and although not black and white looks pretty washed out.

Any ideas how I can create a better quality thumb?

$thumb = $targetPath."Thumbs/".$fileName;

$image = imagecreatefromjpeg($targetFile);
$width = 200; //New width of image    
$height = 92; //This maintains proportions

$thumbWidth = 200; 
$thumbHeight = 92;

$sourceImage = imagecreatefromjpeg($targetFile);

$targetImage = imagecreate($thumbWidth,$thumbHeight);
 imagecopyresampled($targetImage,$sourceImage,0,0,0,0,$thumbWidth,$thumbHeight,imagesx($sourceImage),imagesy($sourceImage));

//imagejpeg($targetImage, "$thumbPath/$thumbName");
imagejpeg($targetImage, $thumb, 100);

chmod($thumb, 0755)

;

thanks R.

Answer 1

use imagick, it will give way better results http://lt.php.net/manual/en/function.imagick-thumbnailimage.php

Answer 2

Use this: ini_set("gd.jpeg_ignore_warning", 1);