MATLAB Answers

how to create customized curve ( only know the shape )

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Yuji Zhang
Yuji Zhang on 18 Jun 2013
Edited: Viktor Tzivnev on 24 Jun 2019
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~

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Answers (3)

bym
bym on 18 Jun 2013

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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...

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Yuji Zhang
Yuji Zhang on 18 Jun 2013
Hi Pourya~
It's so nice of you to offer! Could you please mail it to yzhang45@gmail.com
proecsm recommended the code http://www.mathworks.com/matlabcentral/fileexchange/7173-grabit. It worked. But still I wanna take a look at a different code - maybe a different approach.
Thanks a lot~
Pourya Alinezhad
Pourya Alinezhad on 18 Jun 2013
gmail dosn't accept .exe files as attachments... give me an other email address... not hosted by gmail ... this is a full application and just for the purpose you mentioned.

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Viktor Tzivnev
Viktor Tzivnev on 24 Jun 2019
Edited: Viktor Tzivnev on 24 Jun 2019
Hi Pourya,
I'm stuck with the same Problem as Yuiji, could you please send me tha programm as well at tzivnev@hm.edu. This will be awesome!
Thanks a lot!
br
Viktor

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