Name
Negate( ) — apply color inversion
Synopsis
$image->Negate(gray=>{1,
0})
Negate( )
flips each bit of
every color in the colormap of the image, effectively negating the
intensities of the three color channels, as shown in Figure 5.9. If the optional gray parameter is set to 1,
only the grayscale pixels are inverted.
Figure 5-9. $image->Negate( )
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