Php/docs/imagick.floodfillpaintimage

• PHP Manual
• Imagick
• Changes the color value of any pixel that matches target

Imagick::floodFillPaintImage

(PECL imagick 2 >= 2.3.0, PECL imagick 3)

Imagick::floodFillPaintImage — Changes the color value of any pixel that matches target

说明

public Imagick::floodFillPaintImage ( mixed $fill , float $fuzz , mixed $target , int $x , int $y , bool $invert [, int $channel = Imagick::CHANNEL_DEFAULT ] ) : bool

Changes the color value of any pixel that matches target and is an immediate neighbor. This method is a replacement for deprecated Imagick::paintFloodFillImage(). 此方法在Imagick基于ImageMagick 6.3.8以上版本编译时可用。

参数

fill

ImagickPixel object or a string containing the fill color

fuzz

The amount of fuzz. For example, set fuzz to 10 and the color red at intensities of 100 and 102 respectively are now interpreted as the same color.

target

ImagickPixel object or a string containing the target color to paint

x

X start position of the floodfill

y

Y start position of the floodfill

invert

If true paints any pixel that does not match the target color.

channel

Provide any channel constant that is valid for your channel mode. To apply to more than one channel, combine channel constants using bitwise operators. 缺省为Imagick::CHANNEL_DEFAULT. 参考此 通道常数列表

返回值

成功时返回 true。

范例

Example #1 Imagick::floodfillPaintImage() example

<?php/* Create new imagick object */$im = new Imagick();/* create red, green and blue images */$im->newImage(100, 50, "red");$im->newImage(100, 50, "green");$im->newImage(100, 50, "blue");/* Append the images into one */$im->resetIterator();$combined = $im->appendImages(true);/* Save the intermediate image for comparison */$combined->writeImage("floodfillpaint_intermediate.png");/* The target pixel to paint */$x = 1;$y = 1;/* Get the color we are painting */$target = $combined->getImagePixelColor($x, $y);/* Paints pixel in position 1,1 black and all neighboring    pixels that match the target color */$combined->floodfillPaintImage("black", 1, $target, $x, $y, false);/* Save the result */$combined->writeImage("floodfillpaint_result.png");?>

以上例程的输出类似于：