Get data from plotted figure?

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ahmed fares
ahmed fares 2018-8-11
评论： ahmed fares 2018-8-14
I attached a plotted fig that plotted by method. How can I get data from traction effort(y axis) and speed (x axis) and represent it in Excel?
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Image Analyst
Image Analyst 2018-8-11
Didn't you plot it? So you should already have the x and y data, right? So then simply use xlswrite().

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Walter Roberson
Walter Roberson 2018-8-11
Look in the File Exchange for tag:digitize
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Walter Roberson
Walter Roberson 2018-8-14
Use the Add On Explore to install some of the File Exchange contributions you find from the above link, and try them out.
The plots are pretty simple; you could probably pretty much read them off by eye. If you want to try for higher resolution, try Image Analyst's code at https://www.mathworks.com/matlabcentral/answers/130306-how-do-i-find-the-distance-between-two-pixel-co-ordinates#answer_137530 to calibrate according to the grid lines and then to use the results to measure more precisely where the lines are.
ahmed fares
ahmed fares 2018-8-14
ok i will try and going to return back thanks

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