Creating a useable thumbnail

[fizzwizz]

I have read many posts an also the manual regarding producing thumbnails for my images.

I have been using the following code which works .....

function create_thumb_hfixed($file_name_src, $file_name_dest, $height, $quality=100)
{

if (file_exists($file_name_src)  && isset($file_name_dest))
{
    $est_src = pathinfo(strtolower($file_name_src));
    $est_dest = pathinfo(strtolower($file_name_dest));

    $size = getimagesize($file_name_src);
    $h = number_format($height, 0, ',', '');
    $w = number_format(($size[0]/$size[1])*$height,0,',','');

    if ($est_dest['extension'] == "gif" || $est_dest['extension'] == "jpg")
    {
        $file_name_dest = substr_replace($file_name_dest, 'jpg', -3);
        $dest = imagecreatetruecolor($w, $h);
        imageantialias($dest, TRUE);
    } elseif ($est_dest['extension'] == "png")
    {
        $dest = imagecreatetruecolor($w, $h);
        imageantialias($dest, TRUE);
    } else
    {
       return FALSE;
    }

    switch($size[2])
    {
    case 1:       //GIF
        $src = imagecreatefromgif($file_name_src);
        break;
    case 2:       //JPEG
        $src = imagecreatefromjpeg($file_name_src);
        break;
    case 3:       //PNG
        $src = imagecreatefrompng($file_name_src);
        break;
    default:
        return FALSE;
        break;
    }

    imagecopyresampled($dest, $src, 0, 0, 0, 0, $w, $h, $size[0], $size[1]);

    switch($size[2])
    {
    case 1:
    case 2:
        imagejpeg($dest,$file_name_dest, $quality);
        break;
    case 3:
        imagepng($dest,$file_name_dest);
    }
    return TRUE;
}
return FALSE;
}
function create_thumb_wfixed($file_name_src, $file_name_dest, $weight,$quality=100)
{

if (file_exists($file_name_src)  && isset($file_name_dest))
{
    $est_src = pathinfo(strtolower($file_name_src));
    $est_dest = pathinfo(strtolower($file_name_dest));

    $size = getimagesize($file_name_src);
    $w = number_format($weight, 0, ',', '');
    $h = number_format(($size[1]/$size[0])*$weight,0,',','');

    if ($est_dest['extension'] == "gif" || $est_dest['extension'] == "jpg")
    {
        $file_name_dest = substr_replace($file_name_dest, 'jpg', -3);
        $dest = imagecreatetruecolor($w, $h);
        imageantialias($dest, TRUE);
    } elseif ($est_dest['extension'] == "png")
    {
        $dest = imagecreatetruecolor($w, $h);
        imageantialias($dest, TRUE);
    } else
    {
       return FALSE;
    }

    switch($size[2])
    {
    case 1:       //GIF
        $src = imagecreatefromgif($file_name_src);
        break;
    case 2:       //JPEG
        $src = imagecreatefromjpeg($file_name_src);
        break;
    case 3:       //PNG
        $src = imagecreatefrompng($file_name_src);
        break;
    default:
        return FALSE;
        break;
    }

    imagecopyresampled($dest, $src, 0, 0, 0, 0, $w, $h, $size[0], $size[1]);

    switch($size[2])
    {
    case 1:
    case 2:
        imagejpeg($dest,$file_name_dest, $quality);
        break;
    case 3:
        imagepng($dest,$file_name_dest);
    }
    return TRUE;
}
return FALSE;
}


if ($process=create_thumb_hfixed('uploads/img3fa50efbdbd4d.jpg','uploads/thumbnails/test.gif',60,'$quality=100'))
{
echo "Thumbnail Created";
}
?>

The problem is that the thumbnail created is too pixilated and bears no resemblance to the original image ... as shown

original

thumbnail

Can anyone suggest how to make a more useful thumbnail?

Thanks ... Fizz

[helz]

http://w3secrets.com/thumbsup_2_0_quelltext.php3
its in german but you can still understand how it works...
also you need GD installed. if anyone has a non-gd version please post here 🙂