Extract data from a Contour Plot

Hi,

I have a contour image of a turbocharger. I wanted to extract the efficiency map (Contour Map) from the image.

Image is attached for your reference. How should I initiate the process with matlab code.

Would be more helpful if someone could guide me how to start with either matlab or any other toolbox and link to process the image.

Thanks & regards

Raghu

Answer 1

[Raghu Vamsi Kodaboina]

@DGM has provided the solution for this query of mine in another section.

The link to the solution is posted below.

https://www.mathworks.com/matlabcentral/answers/2101661-how-to-extract-data-from-contour-image

Raghu

Answer 2

[Ayush Modi]

Hi Raghu,

To read an image file, you can use imread function in Matlab.

As for extracting contour map from the image, I found similar question in the community.

https://www.mathworks.com/matlabcentral/answers/845490-contour-extraction-from-the-image

Please refer to the following MathWorks documentation for information on:

• imread: https://www.mathworks.com/help/matlab/ref/imread.html
• contour: https://www.mathworks.com/help/matlab/ref/contour.html

I hope this helps you get started.

[Raghu Vamsi Kodaboina]

Thank you @Ayush Modi for the solution, but I got an answer for the same from someone else for the same question.

The solution link which I have accepted has be pasted below for anyone's future reference.

https://www.mathworks.com/matlabcentral/answers/2101661-how-to-extract-data-from-contour-image

Thanks again.

Raghu