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At the start of a project I used Image J which measured my cells in pixel. I am now trying to convert the pixel measurements that have already been taken into µm². Is there a formula I can use to convert these pixel measurements to µm²?
I did measure a cell in Image J once I set the scale that was given to me (to see if I got the same thing in µm²), but the measurements are quite different.
I would really like all measurements to be consistent.