Image Data Model: _ditherBw

Image Data Model: _ditherBw

Reduces the image to a monochrome black and white image

Syntax
Details
Example

Syntax

CALL SEND (object-id, '_ditherBw');

Details

This method reduces an image to a 1-bit gray-scale image. Because of the algorithm used, _ditherBw is much more efficient for this task than the general purpose _dither method.

Example

This example converts a BMP image to a monochrome TIFF image:

call send (imgdat_id, '_readFilepath',
          'input.bmp', 'format=bmp');
call send (imgdat_id, '_ditherBw');
call send (imgdat_id, '_writeFilepath',
           'output.tif', 'format=tiff');

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