[ITK-users] Setting constants in ternary functor filters

[jmerkow]

Ahhh, I see. You have an if-else block that checked for NULL pointers, and
then call GetConstant on the null pointer.

I guess I misunderstood the decorated data object for pixel types.  I
thought that they were constant images, so that GetPixel returns the
constant at all locations. I re-read [1] more carefully and see my mistake.

Im going to switch to the unary functor, but is there a constant image class
like Im describing? It would be an easy way to set constants for functors
(or anything) without wasting memory by CreateImage -> Fill.

Thanks for your help!
-Jameson



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