Yikes! Thumbnail Quality Sucks -- How to Improve It?

[Lord_Brar]

Hi -- I am using the following code to generate the thumbnails for my uploaded images --

function createThumbnail($filesavepath, $basefilename, $ext, $thumbwidth, $thumbdir) {

		if($ext == "jpg" || $ext == "JPG" || $ext == "Jpg")
		{
			$im = imagecreatefromjpeg($filesavepath);

		} else if($ext == "gif" || $ext == "GIF" || $ext == "Gif") {

			$im = imagecreatefromgif($filesavepath);

		} else if($ext == "png" || $ext == "PNG" || $ext == "Png") {

			$im = imagecreatefrompng($filesavepath);
		}


		$ox = imagesx($im);
		$oy = imagesy($im);

		$nx = $thumbwidth;
		$ny = floor($oy * ($thumbwidth / $ox));

		$nm = imagecreatetruecolor($nx, $ny);

		imagecopyresized($nm, $im, 0,0,0,0,$nx,$ny,$ox,$oy);

		if(!file_exists($thumbdir)) {
		  if(!mkdir($thumbdir)) {
	           die("There was a problem. Please try again!");
		  } 
	       }

		imagejpeg($nm, $thumbdir . $basefilename, 100);

		$thumburl = $thumbdir . $basefilename;

		if(file_exists($thumburl)) { return 1; } else { return 0; }


	}

To show you the quality of thumbnails being produced --

Original: http://dotep.com/ful/media/1226195461358-9bd12.jpg
Thumbnail: http://dotep.com/ful/media/thumbnails/1226195461358-9bd12.jpg

Now, any ideas how to improve the quality of thumbnails I can generate of the images?

[bradgrafelman]

Try using [man]imagecopyresampled/man instead of [man]imagecopyresized/man.

You might also try a different image format, such as PNG.

[Corey_M]

Image Magick is awesome.