ImagickPixel::getColorCount
QUOTE: $color The channel to check, specified as one of the Imagick channel constants.
$color is a COLOR_* constant, not a channel constant
e.g.
<?php
$image=new Imagick();
$image->readImage('test.png');
$point=$image->getImagePixelColor(0,0);
echo ' Alpha:'.$point->getColorValue(imagick::COLOR_ALPHA);
echo ' Opacity:'.$point->getColorValue(imagick::COLOR_OPACITY);
echo ' R:'.$point->getColorValue(imagick::COLOR_RED);
echo ' G:'.$point->getColorValue(imagick::COLOR_GREEN);
echo ' B:'.$point->getColorValue(imagick::COLOR_BLUE);
?>
ImagickPixel::getColorValue
(PECL imagick 2.0.0)
ImagickPixel::getColorValue — Gets the normalized value of the provided color channel
Description
float ImagickPixel::getColorValue
( int $color
)
Warning
This function is currently not documented; only its argument list is available.
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 Imagick channel constants.
Return Values
The value of the channel, as a normalized floating-point number, throwing ImagickPixelException on error.
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User Contributed NotesImagickPixel::getColorValue
mwwaygoo AT hotmail DOT com
18-May-2010 12:56
18-May-2010 12:56