Reducing CMY channels and keeping K channel

[harwoodr]

Hey all,

I'm told for a specific barcode operation that I need to be able to spit out a black and white image where the black has no CMY channel components - how do I achieve this with PerlMagic?

I've tried using Fx to reduce the channels - but without success.

[anthony]

Who told you, and what are you requirements. A black and white image is not specific to CMYK. There are lots of ways to convert an image to a two color black and white image.

You have greyed image threshold, dithered monocrome, two color quantization (dithered or un-dithered) or user supplied color reduction. Just to name a few.

Most of these are exampled in IM Examples, Quantization and Dithering, and can be translated to PerlMagick relativally easilly.