GDLuminanceSource.php Class GDLuminanceSource Tags created 17.01.2021 author ZXing Authors author Smiley smiley@chillerlan.net copyright 2021 Smiley license Apache-2.0 noinspection PhpComposerExtensionStubsInspection Interfaces, Classes, Traits and Enums GDLuminanceSource This class is used to help decode images from files which arrive as GD Resource It does not support rotation.