how to extract data from 2D graph?

Hi,

I got 2D graph like attacment. how to extract the data from .jpg? i do convert it in .fig but i have error:

"No appropriate method, property, or field 'ZData' for class 'matlab.graphics.primitive.Image'.

Error in test123 (line 12)

z = dataObjs(1).ZData"

Thanks

Answer 1

[KSSV]

See this file exchange: https://in.mathworks.com/matlabcentral/fileexchange/7173-grabit

If you have .fig,,,you can get the handles of the figure and the handles have XData and YData.

[Safwana Razak]

thank you so much

Answer 2

[madhan ravi]

https://www.mathworks.com/matlabcentral/answers/100687-how-do-i-extract-data-from-matlab-figures#answer_110036 - save your graph as .fig instead of .jpg ("No appropriate method, property, or field 'ZData' for class 'matlab.graphics.primitive.Image'. )

[Safwana Razak]

If i get my graph from report format like pdf or word or .jpg? when i convert into .fig i got the error mgs:

"No appropriate method, property, or field 'ZData' for class 'matlab.graphics.primitive.Image'.

Error in test123 (line 12)

z = dataObjs(1).ZData"