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                                    composer show spatie/image

Adjustments

Brightness

The brightness method adjusts the brightness of the Image. The method accepts a value between -100 and 100.

$image->brightness(-20);

The contrast method adjusts the contrast of the Image. The method accepts a value between -100 and 100.

$image->contrast(20);

The gamma method adjusts the gamma of the Image. The method accepts a value between 0.1 and 9.99.

$image->gamma(4.1);