(No version information available, might only be in Git)
Description
public void Imagick::brightnessContrastImage ( string $brightness, string $contrast [, string $CHANNEL = Imagick::CHANNEL_DEFAULT ] )
Change the brightness and/or contrast of an image. It converts the brightness and contrast parameters into slope and intercept and calls a polynomical function to apply to the image.
Parameters:
brightness
Change the brightness and/or contrast of an image. It converts the brightness and contrast parameters into slope and intercept and calls a polynomical function to apply to the image.
contrast
Change the brightness and/or contrast of an image. It converts the brightness and contrast parameters into slope and intercept and calls a polynomical function to apply to the image.
CHANNEL
Change the brightness and/or contrast of an image. It converts the brightness and contrast parameters into slope and intercept and calls a polynomical function to apply to the image.
Returns:
Examples:
Imagick::brightnessContrastImage()
<?php
function brightnessContrastImage($imagePath, $brightness, $contrast, $channel) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->brightnessContrastImage($brightness, $contrast, $channel);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
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