Imagick::getImageCompression

(PECL imagick 2.2.2)

Imagick::getImageCompressionObtiene el tipo de compresión de la imagen actual

Descripción

Imagick::getImageCompression ( void ) : int

Obtiene el tipo de compresión de la imagen actual.

Valores devueltos

Devuelve la constante de compresión

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User Contributed Notes 3 notes

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Mondragon
3 months ago
Example use:

$im = new Imagick("mypicture.jpg");
$ctype = $im->getImageCompression();
if($ctype == Imagick::COMPRESSION_ZIP) echo "PNG file!";
if($ctype == Imagick::COMPRESSION_JPEG) echo "JPG file!";
if($ctype == Imagick::COMPRESSION_LZW) echo "GIF file!";

All options:
COMPRESSION_UNDEFINED
COMPRESSION_NO
COMPRESSION_BZIP
COMPRESSION_FAX
COMPRESSION_GROUP4
COMPRESSION_JPEG
COMPRESSION_JPEG2000
COMPRESSION_LOSSLESSJPEG
COMPRESSION_LZW
COMPRESSION_RLE
COMPRESSION_ZIP
COMPRESSION_DXT1
COMPRESSION_DXT3
COMPRESSION_DXT5
COMPRESSION_ZIPS
COMPRESSION_PIZ
COMPRESSION_PXR24
COMPRESSION_B44
COMPRESSION_B44A
COMPRESSION_LZMA
COMPRESSION_JBIG1
COMPRESSION_JBIG2

The numbers for which those constants stand differ by version. So always use the constants.
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-1
undoable at gmail dot com
7 years ago
This function is undefined. You must use getImageCompressionQuality() instead.
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-1
alitrix at gmail dot com
3 years ago
This function is added in version 3.3.0 and above
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