How to get equations of plots from this image ?

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RuiQi le 16 Jan 2017

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Commenté : KSSV le 16 Jan 2017

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How to get equation of each plot from this image ? I want to replot it. Any app that i can use ?

I used the app provided by KSSV but I got a curve that isnt as smooth as the original one. Can anyone suggest how I can smoothen the curve ? I tried fitcurve but it doesn't look right at all

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KSSV le 16 Jan 2017

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https://fr.mathworks.com/matlabcentral/answers/320550-how-to-get-equations-of-plots-from-this-image#answer_250709

Refer this file exchange: https://in.mathworks.com/matlabcentral/fileexchange/24195-gui-utility-to-extract-x--y-data-series-from-matlab-figures

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RuiQi le 16 Jan 2017

Sweet ! Do you know how I can smoothen the curve ? I took 11 values of one plot and when I plotted it (image in original post) I got something that doesn't look smooth.