Attach Mask
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Input
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1. Any 2D or 3D image or image set, mask will be attached to it
2. A 2D or 3D image or image set to use as mask. If this second set runs out of images before all images in the first one have been assigned a mask, the last one is used for the rest.

Output
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None

Description
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The mask image is attached to the input image as explicit mask.