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Imagick::floodFillPaintImage — Changes the color value of any pixel that matches target
$fill
, float $fuzz
, mixed $target
, int $x
, int $y
, bool $invert
[, int $channel
= Imagick::CHANNEL_DEFAULT
] )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。
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
成功时返回 TRUE
。
Example #1 Imagick::floodfillPaintImage() example
<?php
$im = new Imagick ();
$im -> newImage ( 100 , 50 , "red" );
$im -> newImage ( 100 , 50 , "green" );
$im -> newImage ( 100 , 50 , "blue" );
$im -> resetIterator ();
$combined = $im -> appendImages ( true );
$combined -> writeImage ( "floodfillpaint_intermediate.png" );
$x = 1 ;
$y = 1 ;
$target = $combined -> getImagePixelColor ( $x , $y );
$combined -> floodfillPaintImage ( "black" , 1 , $target , $x , $y , false );
$combined -> writeImage ( "floodfillpaint_result.png" );
?>
以上例程的输出类似于: