[Q] How to efficiently ZOOM in/out an image?

[Feng Yang]

In TK4.0, I can use "image2 copy image1 -zoom 3 3". However, it
is slow and the new image image2 takes extra memory.

Is there a better way to do this? What I really need is to zoom
in/out an image item in a canvas. The 24bit photo itself can remain
unchanged. I tried the scale command in canvas, it seems not affect
image items.

Thank you very much for your consideration.

Feng Yang
feng...@bnr.ca
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This posting has nothing to do with BNR.