For an experiment i will be taking pictures of the tip of a wing at various speeds. i need a software which can have as the 'background' the initial picture of the wing and then on top of that i want to superimpose another picture at a later point, which will have the exact same thing except the position of the wing will have changed (ie. the camera doesnt move).
lastly, can i measure the distance between 2 points using the original and 'next' picture?
can i do this using one program or will i need more? thank you in advance.
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