cut out picture

[simonsays]

hi there!

My problem is the following. I am trying to write a function that will cut out a fixed-size piece from the CENTER of an uploaded picture.

However, my function seems to always cut out a piece from the bottom right corner of the image (filling the difference with black), although the image itself is rather large and the coordinates are given.

Thanks in advance! Here's the code!

 

    function CreateThumb($filename) {
        
        $source = imagecreatefromjpeg($filename);
        
        $width = imagesx($source);
        $height = imagesy($source);
        
        $output_width = 215;
        $output_height = 212;
        
        $center_hor = $width/2;
        $center_vert = $height/2;
        
        $src_x = $center_hor - $output_width/2;
        $src_y = $center_vert + $output_height/2;
        
        $output = imagecreatetruecolor($output_width, $output_height);
        imagecopyresampled($output, $source, 0, 0, $src_x, $src_y, $output_width, $output_height, $width, $height);
        $new = basename($filename);
        imagejpeg($output, dirname($filename).'/tn'.$new, 100);
        imagedestroy($source);
        imagedestroy($output);
        }
    }

[Barand]

try

 

$src_y = $center_vert - $output_height/2;  // change + to -

[simonsays]

thanks, it's better now? but why doesn't the picture stretch to the limits? it's filled with black:

http://www.kashmirecarpet.com/pics/tn9FD5~1.JPG

[Barand]

try

imagecopyresampled($output, $source, 0, 0, $src_x, $src_y, $output_width, $output_height, $output_width, $output_height);