How to automatically align brightness of layers?

[chonki]

I took 43 close-up photos of different portions of a painting an used the "Align Layers" function to align those close-up photos to give me a high-re image of the painting. The aligning worked great and the result can be seen here:

As you can see, the close-up photos all have different brightness. Is there a way to automatically align brightness, so that I get one image without the jumps in brightness between different areas?

[c.pfaffenbichler · Accepted solution]

Have you tried Edit > Auto-Blend Layers? 

[chonki]

I hadn't tried that before, but "Edit > Auto-Blend Layers" does exactly what I want. Thank you.