I used the GD module to resize my images

PHP Code:
$src_img imagecreatefromjpeg("$category/$images[$count]"); 
            
$new_w 80
            
$new_h 80
            
$dst_img imagecreate($new_w,$new_h); 
            
imagecopyresized($dst_img,$src_img,0,0,0,0,$new_w,$new_h,imagesx($src_img),imagesy($src_img)); 
            
imagejpeg($dst_img"$category/thumb_$images[$count]"); 
I was wondering if there was a way to make them sharper because my thumbnails have horrible quality