Imagick::setImageFilename
I had a problem when using $im->setImageFormat('jpeg');
Image colors got inverted when i converted pdfs to jpg thumbs.
Had to add $im->setImageColorspace(255); to solve it.
<?php
// read page 1
$im = new imagick( 'test.pdf[ 0]' );
// convert to jpg
$im->setImageColorspace(255);
$im->setCompression(Imagick::COMPRESSION_JPEG);
$im->setCompressionQuality(60);
$im->setImageFormat('jpeg');
//resize
$im->resizeImage(290, 375, imagick::FILTER_LANCZOS, 1);
//write image on server
$im->writeImage('thumb.jpg');
$im->clear();
$im->destroy();
?>
Imagick::setImageFormat
(PECL imagick 2.0.0)
Imagick::setImageFormat — Sets the format of a particular image
Description
bool Imagick::setImageFormat
( string $format
)
Warning
This function is currently not documented; only its argument list is available.
Sets the format of a particular image in a sequence.
Parameters
- format
-
String presentation of the image format. Format support depends on the ImageMagick installation.
Return Values
Returns TRUE on success.
add a note
User Contributed NotesImagick::setImageFormat
andy at live dot nl
26-Feb-2009 02:54
26-Feb-2009 02:54
barclay[dot]loftus[at]gmail.com
12-Mar-2008 11:04
12-Mar-2008 11:04
Another note about image output. For jpeg images, the quality is adjusted by Imagick::setCompressionQuality().
<?php
$img->setCompressionQuality(90);
$img->setImageFormat('jpeg');
header('Content-type: image/jpg');
echo $img;
?>
optymizer at yahoo dot com
21-Nov-2007 11:09
21-Nov-2007 11:09
The previous example did not work for me. I received an error that the IMagick object cannot be converted to string.
This example uses the IMagick::getImageBlob() method to properly output the contents of the converted image:
function getImage($filename)
{
$image->readImage($filename);
$image->setImageFormat("png");
header("Content-type: image/png");
echo $image->getImageBlob();
}
Hope this helps!
Devo
08-Oct-2007 03:02
08-Oct-2007 03:02
A list of formats can be found here: http://www.imagemagick.org/script/formats.php
Formats marked with a W can be output to file with writeImage (capabilities depend on your particular installation of course).
For example:
<?php
// create new imagick object from image.jpg
$im = new Imagick( "image.jpg" );
// change format to png
$im->setImageFormat( "png" );
// output the image to the browser as a png
header( "Content-Type: image/png" );
echo $im;
// or you could output the image to a file:
//$im->writeImage( "image.png" );
?>