Go4Expert - Thumbnails and Truecolors

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Thumbnails and Truecolors

Why my thumbnails doesn't look same as orginal picture? Colors are wrong, but I don't know how I fix them.
Here is code:

Code: PHP

<?php
 $image_path = "images/"; //Kansio jossa alkuperäiset kuvat on
 $thumb_path = "thumbs/"; //Kansio johon Thumbnail kuvat laitetaan
 $thumb_width = 100; //Thumbin leveys
 //Avataan Kansio jossa kuvat ovat
 $hak = opendir($image_path);
 //luetaan ensimmäisen tiedoston nimi
 $image_name = readdir($hak);
 
 //jatketaan niin kauan kun $nimi ei ole false
 while ($image_name) {
    //tulostetaan tiedoston nimi
    thumbnail($image_path,$thumb_path,$image_name,$thumb_width);
    //luetaan seuraavan tiedoston nimi
    $image_name = readdir($hak);
 }
 
 //suljetaan hakemisto
 closedir($hak);
 function thumbnail($image_path,$thumb_path,$image_name,$thumb_width)
 {
     $orginal_path = $image_path .'/'.$image_name;
     $src_img = imagecreatefromjpeg($orginal_path);
     $origw=imagesx($src_img);
     $origh=imagesy($src_img);
     $new_w = $thumb_width;
     $diff=$origw/$new_w;
     $new_h=$new_w;
     $dst_img = imagecreate($new_w,$new_h);
     imagecopyresized($dst_img,$src_img,0,0,0,0,$new_w,$new_h,imagesx($src_img),imagesy($src_img));
     
     $destination_path = $thumb_path .'/'.$image_name;
     imagejpeg($dst_img, $destination_path);
     return true;
     echo 'Kuva ' . $image_name . ' on muutettu thumbnailiksi onnistuneesti';
 }
 
 ?>

Re: Thumbnails and Truecolors

Code: PHP

//use
imagecreatetruecolor($new_w,$new_h);
//instead of
imagecreate($new_w,$new_h);

Re: Thumbnails and Truecolors

Now I have bigger problem now it only show Warnings:
Warning: imagecreatefromjpeg(): gd-jpeg: JPEG library reports unrecoverable error: in /mbnet/v/veskue/imagegallery/creator.php on line 23

Warning: imagecreatefromjpeg(): 'images//.' is not a valid JPEG file in /mbnet/v/veskue/imagegallery/creator.php on line 23

Warning: imagesx(): supplied argument is not a valid Image resource in /mbnet/v/veskue/imagegallery/creator.php on line 24

Warning: imagesy(): supplied argument is not a valid Image resource in /mbnet/v/veskue/imagegallery/creator.php on line 25

Warning: imagesx(): supplied argument is not a valid Image resource in /mbnet/v/veskue/imagegallery/creator.php on line 30

Warning: imagesy(): supplied argument is not a valid Image resource in /mbnet/v/veskue/imagegallery/creator.php on line 30

Warning: imagecopyresized(): supplied argument is not a valid Image resource in /mbnet/v/veskue/imagegallery/creator.php on line 30

Warning: imagejpeg(): Unable to open 'thumbs//.' for writing in /mbnet/v/veskue/imagegallery/creator.php on line 33

Warning: imagecreatefromjpeg(): gd-jpeg: JPEG library reports unrecoverable error: in /mbnet/v/veskue/imagegallery/creator.php on line 23

Warning: imagecreatefromjpeg(): 'images//..' is not a valid JPEG file in /mbnet/v/veskue/imagegallery/creator.php on line 23

Warning: imagesx(): supplied argument is not a valid Image resource in /mbnet/v/veskue/imagegallery/creator.php on line 24

Warning: imagesy(): supplied argument is not a valid Image resource in /mbnet/v/veskue/imagegallery/creator.php on line 25

Warning: imagesx(): supplied argument is not a valid Image resource in /mbnet/v/veskue/imagegallery/creator.php on line 30

Warning: imagesy(): supplied argument is not a valid Image resource in /mbnet/v/veskue/imagegallery/creator.php on line 30

Warning: imagecopyresized(): supplied argument is not a valid Image resource in /mbnet/v/veskue/imagegallery/creator.php on line 30

Warning: imagejpeg(): Unable to open 'thumbs//..' for writing in /mbnet/v/veskue/imagegallery/creator.php on line 33

What is wrong

Re: Thumbnails and Truecolors

Try using a different image! If that doesn't work try undoing the last change you made to the code!

imagecreatetruecolor() requires GD 2.0.1 or later.