This function is not working for me at all.
I am trying to generate Images from a PDF and this function does literally NOTHING, even it returns 'true'.....
(PECL imagick 2.0.0)
Imagick::setSize — Sets the size of the Imagick object
$columns
, int $rows
)Sets the size of the Imagick object. Set it before you read a raw image format such as RGB, GRAY, or CMYK.
columns
rows
成功时返回 TRUE。
This function is not working for me at all.
I am trying to generate Images from a PDF and this function does literally NOTHING, even it returns 'true'.....
Using setSize before reading an image file tells ImageMagick to resize the image immediately on load - this can give a substantial increase in performance time and save memory and disk resources for large images:
<?php
$image = new Imagick();
$image->setSize(800,600);
$image->readImage($file);
?>
This might also save you having to call thumbnailImage to resize the image.
On my server, this only made a difference with jpgs - pngs and gifs were loaded at full size which took much longer (30s or more compared to 6s for a similar sized jpg).