Fringes at 2nm scale of TEM image

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Krister Svensson

Two curving lattice fringes are not suitably fitted by using two straight lines.

You could try using a Fourier transform instead, that will use more of the image and would be a better way of extracting the periodicity in the image.

Bably Khatun

Thank you so much for your response, Professor Krister Svensson