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thresh - threshold one image with another
thresh inimage outimage
threshimage
thresh thresholds one image with another. The threshimage
is repeated to tile the entire surface of the input image. Whenever the
input image is greater than the threshimage, the output pixel is made 255
otherwise the output pixel is made 0. This can be used to halftone or dither
images.
dotgen(6D)
imgexp(6D)
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