Edge detection in an image

Question

Sergio Lozano 2021-2-19

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/750029-edge-detection-in-an-image

回答： Keerthana Chiruvolu 2021-2-22

wave.png

Hi!

I would like to measure the water table in each point of the attached image but i do not know what is the best way to proceed. I have tried fuzzy logic and edge detector Canny algorithm.

Thank you all beforehand.

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KALYAN ACHARJYA 2021-2-19

What does "water table" menas here?

Sergio Lozano 2021-2-19

It is the surface of the wave, its height

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Answer 1

Keerthana Chiruvolu 2021-2-22

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/750029-edge-detection-in-an-image#answer_629804

BinaryMaskForWave.jpg

Hi,

Use the Image Segmenter App, to extract the region of interest ( region between the ground and the water surface).

Draw the ROI using the Assisted Freehand and generate the binary image
Export the binary image to the MATLAB Workspace and use the regionprops() function to extract the required properties from the binary image.

Please find the attached binary mask for 'wave.png' image file.

Refer the link for more information on different function used to calculate image properties.