Imagick::uniqueImageColors
(PECL imagick 2.0.0)
Imagick::uniqueImageColors — Discards all but one of any pixel color
설명
bool Imagick::uniqueImageColors
( void
)
Discards all but one of any pixel color. 이 메쏘드는 Imagick을 ImageMagick 6.2.9 이상으로 컴파일 했을 때만 사용할 수 있습니다.
반환값
성공시에 TRUE를 반환합니다.
예제
Example #1 Imagick::uniqueImageColors()
<?php
function uniqueImageColors($imagePath) {
$imagick = new \Imagick(realpath($imagePath));
//Reduce the image to 256 colours nicely.
$imagick->quantizeImage(256, \Imagick::COLORSPACE_YIQ, 0, false, false);
$imagick->uniqueImageColors();
$imagick->scaleimage($imagick->getImageWidth(), $imagick->getImageHeight() * 20);
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
?>
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