Re: Issue using an Image to resize a 1-bit (two colour) mask in DIB format

On Mon, 11 Jul 2016, Bob Friesenhahn wrote:
>
> To accomplish what you need, this should work:
>
>   image.type(Magick::BilevelType);

I should mention that image.type() responds to the dither attribute. 
If dithering is enabled then full color quantization with dithering is 
used (very slow but nice output).  Otherwise simple thresholding is 
used (very fast).

You are free to use whatever algorithm you like to produce a 
monochrome image, including the randomThreshold() method.

Bob

-- 
Bob Friesenhahn
[email protected], http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/

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