imagegammacorrect
PHP 4, PHP 5, PHP 7, PHP 8
imagegammacorrect - Apply a gamma correction to a GD image
Manual
imagegammacorrect(
GdImage$image,
float$input_gamma,
float$output_gamma ): bool
Applies gamma correction to the given gd image given an input and an output gamma.
Parameters
- image
A GdImage object, returned by one of the image creation functions, such as imagecreatetruecolor.
- input_gamma
-
The input gamma.
- output_gamma
-
The output gamma.
Return Values
Returns true on success or false on failure.
Changelog
| Version | Description |
| 8.0.0 | image expects a GdImage instance now; previously, a resource was expected. |