Php Image Generation

[Sarah]

Hello everyone-

 

I am making a PHP script that allows for a JPG upload of a 640x480 picture, and will resize it to a thumbnail size and resave the picture on the fly.

 

This is to enable the user to resize the pic without having to use an image editing program.

 

Anyways, I wrote the script that uploads it, and it resaves it as a smaller pic (80x60), but when I open it up to see it, it's lost all of its color!

 

I don't know much about PHP image functions, but maybe someone could tell me what's going on. I'll post some of my code.

 

>//RESIZE IMAGE FOR THUMBNAIL
 $image = 'uploads/mypicture640x480.jpg';
  
 if (!$max_width)
   $max_width = 80;
 if (!$max_height)
   $max_height = 60;
   
 $size = GetImageSize($image);
 $width = $size[0];
 $height = $size[1];
 
 $x_ratio = $max_width / $width;
 $y_ratio = $max_height / $height;
 
 if ( ($width <= $max_width) && ($height <= $max_height) ){
   $tn_height = ceil($x_ratio * $height);
   $tn_width = $max_width;
 }
 else{
   $tn_width = ceil($y_ratio * $width);
   $tn_height = $max_height;
 }
 
 $src = ImageCreateFromJPEG($image);
 $dst = ImageCreate($tn_width,$tn_height);
 ImageCopyResized($dst,$src,0,0,0,0,$tn_width,$tn_height,$width,$height);

 //SAVES THE FILE AS A NEW NAME
 $filename = "uploads/mynew80x60pic.jpg";
 ImageJPEG($dst,$filename);
 header('Content-type: image/jpeg');
 ImageJPEG($dst,null,-1);
 ImageDestroy($src);
 ImageDestroy($dst);

 

If anyone could provide insight, thatd be great. Thanks!!

 

Sarah

[TCH-RobertM]

Hi Sarah, after a quick search I found this Link It describes what your experiencing. I am not sure if this will help you or not but It seems to explain why your seeing a blank image...

Wish I could be of more assistance

RobertM

[Sarah]

Hello again-

 

I read the link that Robert had posted, and I used 'imagecopyresampled' rather than 'imagecopyresized' and it displayed no problem!

 

That's all I needed - thanks so much!!!!!

 

 

Sarah

[TCH-Bruce]

Glad you got it working!