Example #1 在 Imagick 中创建缩略图
<?php header('Content-type: image/jpeg'); $image = new Imagick('image.jpg'); // If 0 is provided as a width or height parameter, // aspect ratio is maintained $image->thumbnailImage(100, 0); echo $image; ?>
Example #2 Make a thumbnail of all JPG files in a directory
<?php $images = new Imagick(glob('images/*.JPG')); foreach($images as $image) { // Providing 0 forces thumbnailImage to maintain aspect ratio $image->thumbnailImage(1024,0); } $images->writeImages(); ?>
Example #3 Creating a reflection of an image
<?php /* Read the image */ $im = new Imagick("test.png"); /* Thumbnail the image */ $im->thumbnailImage(200, null); /* Create a border for the image */ $im->borderImage(new ImagickPixel("white"), 5, 5); /* Clone the image and flip it */ $reflection = $im->clone(); $reflection->flipImage(); /* Create gradient. It will be overlayed on the reflection */ $gradient = new Imagick(); /* Gradient needs to be large enough for the image and the borders */ $gradient->newPseudoImage($reflection->getImageWidth() + 10, $reflection->getImageHeight() + 10, "gradient:transparent-black"); /* Composite the gradient on the reflection */ $reflection->compositeImage($gradient, imagick::COMPOSITE_OVER, 0, 0); /* Add some opacity. Requires ImageMagick 6.2.9 or later */ $reflection->setImageOpacity( 0.3 ); /* Create an empty canvas */ $canvas = new Imagick(); /* Canvas needs to be large enough to hold the both images */ $width = $im->getImageWidth() + 40; $height = ($im->getImageHeight() * 2) + 30; $canvas->newImage($width, $height, new ImagickPixel("black")); $canvas->setImageFormat("png"); /* Composite the original image and the reflection on the canvas */ $canvas->compositeImage($im, imagick::COMPOSITE_OVER, 20, 10); $canvas->compositeImage($reflection, imagick::COMPOSITE_OVER, 20, $im->getImageHeight() + 10); /* Output the image*/ header("Content-Type: image/png"); echo $canvas; ?>
以上例程的输出类似于:
Example #4 Filling text with gradient
<?php /* Create a new imagick object */ $im = new Imagick(); /* Create new image. This will be used as fill pattern */ $im->newPseudoImage(50, 50, "gradient:red-black"); /* Create imagickdraw object */ $draw = new ImagickDraw(); /* Start a new pattern called "gradient" */ $draw->pushPattern('gradient', 0, 0, 50, 50); /* Composite the gradient on the pattern */ $draw->composite(Imagick::COMPOSITE_OVER, 0, 0, 50, 50, $im); /* Close the pattern */ $draw->popPattern(); /* Use the pattern called "gradient" as the fill */ $draw->setFillPatternURL('#gradient'); /* Set font size to 52 */ $draw->setFontSize(52); /* Annotate some text */ $draw->annotation(20, 50, "Hello World!"); /* Create a new canvas object and a white image */ $canvas = new Imagick(); $canvas->newImage(350, 70, "white"); /* Draw the ImagickDraw on to the canvas */ $canvas->drawImage($draw); /* 1px black border around the image */ $canvas->borderImage('black', 1, 1); /* Set the format to PNG */ $canvas->setImageFormat('png'); /* Output the image */ header("Content-Type: image/png"); echo $canvas; ?>
以上例程的输出类似于:
Example #5 Read in GIF image and resize all frames
<?php /* Create a new imagick object and read in GIF */ $im = new Imagick("example.gif"); /* Resize all frames */ foreach ($im as $frame) { /* 50x50 frames */ $frame->thumbnailImage(50, 50); /* Set the virtual canvas to correct size */ $frame->setImagePage(50, 50, 0, 0); } /* Notice writeImages instead of writeImage */ $im->writeImages("example_small.gif", true); ?>
Example #6 Create a PHP logo
<?php /* Set width and height in proportion of genuine PHP logo */ $width = 400; $height = 210; /* Create an Imagick object with transparent canvas */ $img = new Imagick(); $img->newImage($width, $height, new ImagickPixel('transparent')); /* New ImagickDraw instance for ellipse draw */ $draw = new ImagickDraw(); /* Set purple fill color for ellipse */ $draw->setFillColor('#777bb4'); /* Set ellipse dimensions */ $draw->ellipse($width / 2, $height / 2, $width / 2, $height / 2, 0, 360); /* Draw ellipse onto the canvas */ $img->drawImage($draw); /* Reset fill color from purple to black for text (note: we are reusing ImagickDraw object) */ $draw->setFillColor('black'); /* Set stroke border to white color */ $draw->setStrokeColor('white'); /* Set stroke border thickness */ $draw->setStrokeWidth(2); /* Set font kerning (negative value means that letters are closer to each other) */ $draw->setTextKerning(-8); /* Set font and font size used in PHP logo */ $draw->setFont('Handel Gothic.ttf'); $draw->setFontSize(150); /* Center text horizontally and vertically */ $draw->setGravity(Imagick::GRAVITY_CENTER); /* Add center "php" with Y offset of -10 to canvas (inside ellipse) */ $img->annotateImage($draw, 0, -10, 0, 'php'); $img->setImageFormat('png'); /* Set appropriate header for PNG and output the image */ header('Content-Type: image/png'); echo $img; ?>
以上例程的输出类似于:
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