modulateimage( $brightness, $saturation, $hue ); }
$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 settings
$_SESSION[path] = $path;
$_SESSION[brightness] = $brightness;
$_SESSION[saturation] = $saturation;
$_SESSION[hue] = $hue;
header("Location: display.php");
exit;
}
######### end modulate
include("top.php");
?>
Lets you control the brightness, saturation, and hue of an image. Hue is the percentage of absolute rotation from the current position. For example 50 results in a counter-clockwise rotation of 90 degrees, 150 results in a clockwise rotation of 90 degrees, with 0 and 200 both resulting in a rotation of 180 degrees.