Imagick::contrastStretchImageImagick::convolveImage
(PECL imagick 2.0.0)
Imagick::convolveImage — Applies a custom convolution kernel to the image
Description
bool Imagick::convolveImage
( array $kernel
[, int $channel = Imagick::CHANNEL_ALL
] )
Warning
This function is currently not documented; only its argument list is available.
Applies a custom convolution kernel to the image.
Parameters
- kernel
-
The convolution kernel
- channel
-
Provide any channel constant that is valid for your channel mode. To apply to more than one channel, combine channeltype constants using bitwise operators. Defaults to Imagick::CHANNEL_ALL. Refer to this list of channel constants.
Return Values
Returns TRUE on success.
Errors/Exceptions
Throws ImagickException on error.
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