Reference

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to_pseudogray

Arguments:

Description:

Convert selected scalar images ([0-255]-valued) to pseudo-gray color images.

Default values:

max_step=5, is_perceptual_constraint=1 and bits_depth=8.


The original pseudo-gray technique has been introduced by Rich Franzen [http://r0k.us/graphics/pseudoGrey.html].
Extension of this technique to arbitrary increments for more tones, has been done by David Tschumperlé.