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Gets the normalized value of the provided color channel


GmagickPixel::getcolorvalue

(PECL gmagick >= Unknown)

GmagickPixel::getcolorvalueGets the normalized value of the provided color channel

Description

public float GmagickPixel::getcolorvalue ( int $color )

Retrieves the value of the color channel specified, as a floating-point number between 0 and 1.

Parameters

color

The channel to check, specified as one of the Gmagick channel constants.

Return Values

The value of the channel, as a normalized floating-point number, throwing GmagickPixelException on error.



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