Imagick::negateImage
(No version information available, might be only in CVS)
Imagick::negateImage — Negates the colors in the reference image
Description
bool Imagick::negateImage
( bool $gray
[, int $channel
] )
WarningThis function is
currently not documented; only its argument list is available.
Negates the colors in the reference image. The Grayscale
option means that only grayscale values within the image
are negated.
Parameters
-
gray
-
Whether to only negate grayscale pixels within the image.
-
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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