Add semitransparent image to another, move it around, measure, move it again - Image Analysis - Image.sc Forum

I’m having a devil of a time understanding the differences between selections, ROIs, and overlays, and understanding how to move between them and select things in them. Specifically I want to: Add image A to image B in a partially transparent manner so I can see both images, then move image A around until a portion of it aligns with image B, then measure something on image B, then move the overlaid image A some more, then measure something else, etc. I tried this: Image->Overlay->Add Image, f

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Add semitransparent image to another, move it around, measure, move it again - Image Analysis - Image.sc Forum

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Why are some ROI overlays being shifted, when saving a HyperStack to TIFF and opening it in ImageJ? - Usage & Issues - Image.sc Forum

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