GD Functions and Black Images

[Anon]

I am trying to run this program, which should open a file, resize it, and output the resized file to disk.

The resized file is all black.

I am using PHP4.06 and GD > 2.0

Any clues?

---

<?
$quality = 100;
$dest_width = 367;
$dest_height = 275;
$src_width = 735;
$src_width = 550;

$src_img = ImageCreateFromJPEG("testin.jpg");
$dst_img = ImageCreateTrueColor($dest_width,$dest_height);
imagecopyresampled($dst_img, $src_img, 0, 0, 0, 0, $dest_width, $dest_height, $src_width, $src_height);

imagejpeg($dst_img, "testout.jpg");
imagedestroy($src_img);
imagedestroy($dst_img);
?>

[[deleted]]

Are you sure the 'testin.jpg' is opened correctly?

[Anon]

yes, it is, and I am outputting a file on the disk, then opening the jpg via

http://myserver/testout.jpg

[[deleted]]

So you can successfully create a new image using imagecopyresampled()?

[Anon]

Yes, it is totally black, but it is created, and has the correct dimensions.

Even if I output to png, it is still black...

[[deleted]]

So you can't copy it at after all, not even with the 'normal' imagecreatefromjpg and imagejpg() functions.

Odd.
And you are 100% sure that the file is opened? when you run file_exists('testin.jpg') you get 'true'?

[Anon]

i'm guessing that testin.jpg or testing.jpg or whatever you are using is actually a gif that you just renamed as .jpg

the file must be an actually jpg file, or you'll get the black image