subtracting one image from another

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Permalink Reply by David Rutten on September 7, 2015 at 10:48am

No, the image sampler can only deal with one image at a time.

You can import both images using two image samplers, sample both brightnesses and then subtract the resulting stream of numbers.

Permalink Reply by David Rutten on September 7, 2015 at 10:54am

Attachments:

• subtractimages.gh, 106 KB

Permalink Reply by WT4 on September 7, 2015 at 11:14am

Many thanks for this. Will try this tomorrow at work.