Imagick::brightnessContrastImage
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Imagick::brightnessContrastImage — Description
Description
public void Imagick::brightnessContrastImage ( string $brightness , string $contrast [, int $CHANNEL = Imagick::CHANNEL_DEFAULT ] )Change the brightness and/or contrast of an image. It converts the brightness and contrast parameters into slope and intercept and calls a polynomical function to apply to the image.
Parameters
brightness contrast CHANNEL
Return Values
Examples
Example #1 Imagick::brightnessContrastImage()
<?php
function?brightnessContrastImage($imagePath,?$brightness,?$contrast,?$channel)?{
????$imagick?=?new?\Imagick(realpath($imagePath));
????$imagick->brightnessContrastImage($brightness,?$contrast,?$channel);
????header("Content-Type:?image/jpg");
????echo?$imagick->getImageBlob();
}
?>← Imagick::borderImage
Imagick::charcoalImage →
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