Help with image overlap

[SUBSCRIBE IMAGEJ Niccolo Cea]

Please, I'would need a help from anybody to solve an easy problem.
I have to overlap two images, that are the same thing but saved in different times. I would need to overlap but the first plan, for sure, has to be more transparent, so I can easily see the second plan. It is possible? And how can I do?
The pictures are 8-bit colors.

Thank you for attention.

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[Michael Schmid]

Hi Niccolo,

you can use Image>Overlay>Add Image, and select an opacity value < 100% for the overlay.

Usually, my favorite method is a different one, however:
Image>Color>Merge Channels. Then I can have, e.g., one image in red and the other in blue and green (cyan).

Michael
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On Sep 25, 2012, at 16:36, SUBSCRIBE IMAGEJ Niccolo Cea wrote:

> Please, I'would need a help from anybody to solve an easy problem.
> I have to overlap two images, that are the same thing but saved in different times. I would need to overlap but the first plan, for sure, has to be more transparent, so I can easily see the second plan. It is possible? And how can I do?
> The pictures are 8-bit colors.

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