Imagick::morphology

(PECL imagick 3 >= 3.3.0)

Imagick::morphology — 根據指定的形態學方法，將使用者提供的核心套用到影像。

說明

public Imagick::morphology(
    int $morphologyMethod,
    int $iterations,
    ImagickKernel $ImagickKernel,
    int $channel = Imagick::CHANNEL_DEFAULT
): bool

根據指定的形態學方法，將使用者提供的核心應用於影像。

參數

morphologyMethod: 要使用的形態學方法，為 \Imagick::MORPHOLOGY_* 常數之一。
iterations: 應用形態學函數的迭代次數。值 -1 表示循環直到沒有發現變化。其應用方式可能取決於形態學方法。通常此值為 1。
ImagickKernel
channel (通道)

返回值

成功時返回 true。

範例

範例 #1 卷積 Imagick::morphology()

<?php
 $imagick = $this->getCharacter();
 $kernel = \ImagickKernel::fromBuiltIn(\Imagick::KERNEL_GAUSSIAN, "5,1");
 $imagick->morphology(\Imagick::MORPHOLOGY_CONVOLVE, 2, $kernel);
 header("Content-Type: image/png");
 echo $imagick->getImageBlob();

?>

範例 #2 相關 Imagick::morphology()

<?php

 // 左上角像素必須為黑色
 // 右下角像素必須為白色
 // 我們不關心其餘部分。
 

 $imagick = $this->getCharacterOutline();
 $kernel = \ImagickKernel::fromMatrix(self::$correlateMatrix, [2, 2]);
 $imagick->morphology(\Imagick::MORPHOLOGY_CORRELATE, 1, $kernel);
 header("Content-Type: image/png");
 echo $imagick->getImageBlob();

?>

範例 #3 侵蝕 Imagick::morphology()

<?php
 $canvas = $this->getCharacterOutline();
 $kernel = \ImagickKernel::fromBuiltIn(\Imagick::KERNEL_OCTAGON, "3");
 $canvas->morphology(\Imagick::MORPHOLOGY_ERODE, 2, $kernel);
 header("Content-Type: image/png");
 echo $canvas->getImageBlob();

?>

範例 #4 侵蝕強度 Imagick::morphology()

<?php
 $canvas = $this->getCharacter();
 $kernel = \ImagickKernel::fromBuiltIn(\Imagick::KERNEL_OCTAGON, "1");
 $canvas->morphology(\Imagick::MORPHOLOGY_ERODE_INTENSITY, 2, $kernel);
 header("Content-Type: image/png");
 echo $canvas->getImageBlob();

?>

範例 #5 擴張 Imagick::morphology()

<?php
 $canvas = $this->getCharacterOutline();
 $kernel = \ImagickKernel::fromBuiltIn(\Imagick::KERNEL_OCTAGON, "3");
 $canvas->morphology(\Imagick::MORPHOLOGY_DILATE, 4, $kernel);
 header("Content-Type: image/png");
 echo $canvas->getImageBlob();

?>

範例 #6 擴張強度 Imagick::morphology()

<?php
 $canvas = $this->getCharacter();
 $kernel = \ImagickKernel::fromBuiltIn(\Imagick::KERNEL_OCTAGON, "1");
 $canvas->morphology(\Imagick::MORPHOLOGY_DILATE_INTENSITY, 4, $kernel);
 header("Content-Type: image/png");
 echo $canvas->getImageBlob();

?>

範例 #7 使用切比雪夫核心的距離計算 Imagick::morphology()

<?php
 $canvas = $this->getCharacterOutline();
 $kernel = \ImagickKernel::fromBuiltIn(\Imagick::KERNEL_CHEBYSHEV, "3");
 $canvas->morphology(\Imagick::MORPHOLOGY_DISTANCE, 3, $kernel);
 $canvas->autoLevelImage();
 header("Content-Type: image/png");
 echo $canvas->getImageBlob();

?>

範例 #8 使用曼哈頓核心的距離計算 Imagick::morphology()

<?php
 $canvas = $this->getCharacterOutline();
 $kernel = \ImagickKernel::fromBuiltIn(\Imagick::KERNEL_MANHATTAN, "5");
 $canvas->morphology(\Imagick::MORPHOLOGY_DISTANCE, 3, $kernel);
 $canvas->autoLevelImage();
 header("Content-Type: image/png");
 echo $canvas->getImageBlob();

?>

範例 #9 使用八邊形核心計算距離 Imagick::morphology()

<?php
 $canvas = $this->getCharacterOutline();
 $kernel = \ImagickKernel::fromBuiltIn(\Imagick::KERNEL_OCTAGONAL, "5");
 $canvas->morphology(\Imagick::MORPHOLOGY_DISTANCE, 3, $kernel);
 $canvas->autoLevelImage();
 header("Content-Type: image/png");
 echo $canvas->getImageBlob();

?>

範例 #10 使用歐幾里得核心計算距離 Imagick::morphology()

<?php
 $canvas = $this->getCharacterOutline();
 $kernel = \ImagickKernel::fromBuiltIn(\Imagick::KERNEL_EUCLIDEAN, "4");
 $canvas->morphology(\Imagick::MORPHOLOGY_DISTANCE, 3, $kernel);
 $canvas->autoLevelImage();
 header("Content-Type: image/png");
 echo $canvas->getImageBlob();

?>

範例 #11 邊緣 Imagick::morphology()

<?php
 $canvas = $this->getCharacterOutline();
 $kernel = \ImagickKernel::fromBuiltIn(\Imagick::KERNEL_OCTAGON, "3");
 $canvas->morphology(\Imagick::MORPHOLOGY_EDGE, 1, $kernel);
 header("Content-Type: image/png");
 echo $canvas->getImageBlob();

?>

範例 #12 開運算 Imagick::morphology()

<?php
 // 結果你會看到「開運算」平滑了輪廓，將任何尖銳的點磨圓，並移除任何比使用形狀小的部分。它還會斷開或「打開」任何細橋。
 $canvas = $this->getCharacterOutline();
 $kernel = \ImagickKernel::fromBuiltIn(\Imagick::KERNEL_DISK, "6");
 $canvas->morphology(\Imagick::MORPHOLOGY_OPEN, 1, $kernel);
 header("Content-Type: image/png");
 echo $canvas->getImageBlob();

?>

範例 #13 開運算強度 Imagick::morphology()

<?php
 // 結果您會看到「開啟」平滑了輪廓，透過將任何尖銳的點磨圓，並移除任何比使用的形狀更小的部分。它還會斷開或「開啟」任何細的橋樑。

 $canvas = $this->getCharacter();
 $kernel = \ImagickKernel::fromBuiltIn(\Imagick::KERNEL_DISK, "6");
 $canvas->morphology(\Imagick::MORPHOLOGY_OPEN_INTENSITY, 1, $kernel);
 header("Content-Type: image/png");
 echo $canvas->getImageBlob();

?>

範例 #14 閉合 Imagick::morphology()

<?php
 //「閉合」方法的基本用途是縮小或移除大小約為核心「結構元素」的任何「孔洞」或「間隙」。也就是說，閉合大小約為該尺寸的背景部分。
 $canvas = $this->getCharacterOutline();
 $kernel = \ImagickKernel::fromBuiltIn(\Imagick::KERNEL_DISK, "6");
 $canvas->morphology(\Imagick::MORPHOLOGY_CLOSE, 1, $kernel);
 header("Content-Type: image/png");
 echo $canvas->getImageBlob();

?>

範例 #15 強度閉合 Imagick::morphology()

<?php
 // 'Close' 方法的基本用法是縮小或移除大小約為核心「結構元素」的「孔洞」或「間隙」。也就是關閉背景中大小約為該尺寸的部分。
 $canvas = $this->getCharacter();
 $kernel = \ImagickKernel::fromBuiltIn(\Imagick::KERNEL_DISK, "6");
 $canvas->morphology(\Imagick::MORPHOLOGY_CLOSE_INTENSITY, 1, $kernel);
 header("Content-Type: image/png");
 echo $canvas->getImageBlob();

?>

範例 #16 平滑化 Imagick::morphology()

<?php
 $canvas = $this->getCharacterOutline();
 $kernel = \ImagickKernel::fromBuiltIn(\Imagick::KERNEL_OCTAGON, "3");
 $canvas->morphology(\Imagick::MORPHOLOGY_SMOOTH, 1, $kernel);
 header("Content-Type: image/png");
 echo $canvas->getImageBlob();

?>

範例 #17 內邊緣 Imagick::morphology()

<?php
 $canvas = $this->getCharacterOutline();
 $kernel = \ImagickKernel::fromBuiltIn(\Imagick::KERNEL_OCTAGON, "3");
 $canvas->morphology(\Imagick::MORPHOLOGY_EDGE_IN, 1, $kernel);
 header("Content-Type: image/png");
 echo $canvas->getImageBlob();

?>

範例 #18 內邊緣 Imagick::morphology()

<?php
 $canvas = $this->getCharacterOutline();
 $kernel = \ImagickKernel::fromBuiltIn(\Imagick::KERNEL_OCTAGON, "3");
 $canvas->morphology(\Imagick::MORPHOLOGY_EDGE_OUT, 1, $kernel);
 header("Content-Type: image/png");
 echo $canvas->getImageBlob();

?>

範例 #19 'TopHat' 方法，更具體地說是「白色頂帽」，會返回被形狀「開運算」移除的像素，也就是為了讓尖角變圓以及連接形狀之間的橋樑而移除的像素。 Imagick::morphology()

<?php
 $canvas = $this->getCharacterOutline();
 $kernel = \ImagickKernel::fromBuiltIn(\Imagick::KERNEL_DISK, "5");
 $canvas->morphology(\Imagick::MORPHOLOGY_TOP_HAT, 1, $kernel);
 header("Content-Type: image/png");
 echo $canvas->getImageBlob();

?>

範例 #20 『BottomHat』方法，也稱為『Black TopHat』，是指形狀的閉合運算添加到圖像中的像素。也就是用於填補「孔洞」、「間隙」和「橋樑」的像素。 Imagick::morphology()

<?php

 $canvas = $this->getCharacterOutline();
 $kernel = \ImagickKernel::fromBuiltIn(\Imagick::KERNEL_DISK, "5");
 $canvas->morphology(\Imagick::MORPHOLOGY_BOTTOM_HAT, 1, $kernel);
 header("Content-Type: image/png");
 echo $canvas->getImageBlob();

?>

範例 #21 擊中與錯過 (Hit and Miss) Imagick::morphology()

<?php
 $canvas = $this->getCharacterOutline();
 //找出右側邊緣 3 個像素內的所有像素
 $matrix = [[1, false, false, 0]];
 $kernel = \ImagickKernel::fromMatrix(
 $matrix,
 [0, 0]
 );
 $canvas->morphology(\Imagick::MORPHOLOGY_HIT_AND_MISS, 1, $kernel);
 header("Content-Type: image/png");
 echo $canvas->getImageBlob();

?>

範例 #22 細化 Imagick::morphology()

<?php
 $canvas = $this->getCharacterOutline();
 $leftEdgeKernel = \ImagickKernel::fromMatrix([[0, 1]], [1, 0]);
 $rightEdgeKernel = \ImagickKernel::fromMatrix([[1, 0]], [0, 0]);
 $leftEdgeKernel->addKernel($rightEdgeKernel);
 
 $canvas->morphology(\Imagick::MORPHOLOGY_THINNING, 3, $leftEdgeKernel);
 header("Content-Type: image/png");
 echo $canvas->getImageBlob();

?>

範例 #23 加粗 Imagick::morphology()

<?php
 $canvas = $this->getCharacterOutline();
 $leftEdgeKernel = \ImagickKernel::fromMatrix([[0, 1]], [1, 0]);
 $rightEdgeKernel = \ImagickKernel::fromMatrix([[1, 0]], [0, 0]);
 $leftEdgeKernel->addKernel($rightEdgeKernel);

 $canvas->morphology(\Imagick::MORPHOLOGY_THICKEN, 3, $leftEdgeKernel);
 header("Content-Type: image/png");
 echo $canvas->getImageBlob();

?>

範例 #24 使用加粗 (Thick) 產生凸包 (Convex Hull) Imagick::morphology()

<?php
 $canvas = $this->getCharacterOutline();
 $diamondKernel = \ImagickKernel::fromBuiltIn(\Imagick::KERNEL_DIAMOND, "1");
 $convexKernel = \ImagickKernel::fromBuiltIn(\Imagick::KERNEL_CONVEX_HULL, "");

 // 粗化形態學無法處理小間隙。我們使用閉合形態學來關閉它們。
 // 使用閉合形態學。
 $canvas->morphology(\Imagick::MORPHOLOGY_CLOSE, 1, $diamondKernel);
 $canvas->morphology(\Imagick::MORPHOLOGY_THICKEN, -1, $convexKernel);
 $canvas->morphology(\Imagick::MORPHOLOGY_CLOSE, 1, $diamondKernel);

 header("Content-Type: image/png");
 echo $canvas->getImageBlob();

?>

範例 #25 迭代形態學 Imagick::morphology()

<?php
 $canvas = $this->getCharacterOutline();
 $kernel = \ImagickKernel::fromBuiltIn(\Imagick::KERNEL_DISK, "2"); 
 $canvas->morphology(\Imagick::MORPHOLOGY_ITERATIVE, 3, $kernel);
 $canvas->autoLevelImage();
 header("Content-Type: image/png");
 echo $canvas->getImageBlob();

?>

範例 #26 取得影像輪廓的輔助函式 Imagick::morphology()

<?php
function getCharacterOutline() {
 $imagick = new \Imagick(realpath("./images/character.png"));
 $character = new \Imagick();
 $character->newPseudoImage(
 $imagick->getImageWidth(),
 $imagick->getImageHeight(),
 "canvas:white"
 );
 $canvas = new \Imagick();
 $canvas->newPseudoImage(
 $imagick->getImageWidth(),
 $imagick->getImageHeight(),
 "canvas:black"
 );

 $character->compositeimage(
 $imagick,
 \Imagick::COMPOSITE_COPYOPACITY,
 0, 0
 );
 $canvas->compositeimage(
 $character,
 \Imagick::COMPOSITE_ATOP,
 0, 0
 );
 $canvas->setFormat('png');

 return $canvas;
}
?>

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