php gd imagepng quality

[bahearn]

So, I am uploading two images one being a jpeg which uploads fine and resizes fine and another being a gif,png, or jpg but using imagepng to output the file. When I use image png the quality of the image is horrible any tips?

heres what the image looks like (it's the one in the middle not the blue background that loads in fine as imagejpg)

 

 

heres my code

list($width,$height)=getimagesize($uploadedfile);

$newwidth=200;

$newheight=200;

 

$tmp=imagecreatetruecolor($newwidth,$newheight);

 

 

$colorTransparent = imagecolortransparent($src);

imagepalettecopy($src, $tmp);

imagefill($tmp, 0, 0, $colorTransparent);

imagecolortransparent($src, $colorTransparent);

imagetruecolortopalette($tmp, true, 256);

 

imagecopyresampled($tmp,$src,0,0,0,0,$newwidth,$newheight,$width,$height);

$filename = "images/". $_FILES['file']['name'];

imagepng($tmp,$filename);