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how to create customized curve ( only know the shape )

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Hi everyone~
I wanna turn couple curves (see pic above) into data in matlab. There are weird functions. All I have is the plots.
It's OK if I can just get some data that looks similar to those curves.
Is there a way to create such customized data? Any imaging processing tool to turn pictures of plots into data?
Let me know. Any thoughts are appreciated. Thanks~

Answers (2)

bym on 18 Jun 2013
  1 Comment
Yuji Zhang
Yuji Zhang on 18 Jun 2013
Hi Proecsm!
Thanks for sharing! It worked pretty nicely!
Just curious about a further question: is there something that can automatically recognize the curve in the image? I think it's an image processing question - I'm not very familiar...
Let me know. Any discussion's appreciated~

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Pourya Alinezhad
Pourya Alinezhad on 18 Jun 2013
yes...there is a programme which accepts images and returned data... named "data_from_graph_1v0" it's about 300kb and i can mail it to u...
Viktor Tzivnev
Viktor Tzivnev on 24 Jun 2019
Moved: John D'Errico on 18 Jan 2023
Hi Pourya,
I'm stuck with the same Problem as Yuiji, could you please send me tha programm as well at This will be awesome!
Thanks a lot!
georg wallner
georg wallner on 18 Jan 2023
culd you please mail it to me, too? Thank you!

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