Gmagick::scaleimage

(PECL gmagick >= Unknown)

Gmagick::scaleimage — Scales the size of an image

说明

public Gmagick::scaleimage(int $width, int $height, bool $fit = false): Gmagick

Scales the size of an image to the given dimensions. The other parameter will be calculated if 0 is passed as either param.

参数

width: The number of columns in the scaled image.
height: The number of rows in the scaled image.

返回值

The Gmagick object.

错误／异常

错误时抛出 GmagickException。

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richard at computertech dot systems ¶

2 years ago

Its important to understand that the boolean flag : $FIT is used as a MAXIMUM boundary of either X or Y

If you use a physical image with a size of 128x256

 scaleImage(200, 100, true);  Will scale Y to 100 and X will be calculated
 scaleImage(100, 120, true);  Will scale X to 100 and Y will be calculated

$FIT is a LIMITER which is why it requires both an X and a Y for $FIT=true

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-1

support at yourmob dot net ¶

5 years ago

CORRECTION

Replace

echo 'img src="data:image/jpeg:base64,'.base64_encode($image).'">';

With 

echo '<img src="data:image/jpeg:base64,'.base64_encode($image).'">';

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-2

support at yourmob dot net ¶

5 years ago

Simple method to load an image from file, resize and display without writing to disk.
tested on jpg, gif and bmp
<?php
$image= new Gmagick( "yourimage.jpg");
$image->scaleimage(300,0);
echo 'img src="data:image/jpeg:base64,'.base64_encode($image).'">';
$image->destroy();
?>