contraststretchimage( $white, $black, $channel); }
$format = strtolower( $image->getimageformat() );
$path = "temp/$ID.$_SESSION[views].$format";
$frames = $image->getNumberImages();
if ( $frames > 1) { $image->writeImages("$path", TRUE); }
else { $image->writeImage("$path"); }
# save data
$_SESSION[path] = $path;
$_SESSION[contraststretchImage_white] = $white;
$_SESSION[contraststretchImage_black] = $black;
header("location:display.php");
exit;
}
include("top.php");
?>
- Description
- Enhances the contrast of a color image by adjusting the pixels color to span the entire range of colors available. Imagik doesn't describe what White Point and Black Point are but values from 0 to 100 seem to work