public Intervention\Image\Image contrast(integer $level)
Changes the contrast of the current image by the given level. Use values between -100 for min. contrast 0 for no change and +100 for max. contrast.
Level of contrast change applied to the current image. Use values between -100 and +100.
Instance of Intervention\Image\Image
// create new Intervention Image
$img = Image::make('public/foo.jpg');
// increase brightness of image
$img->contrast(65);
2023-09-08 更新 本文链接：https://upwqy.com/wiki/info/883.html