Identify the special area in low-contrast image

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luo jingcheng
luo jingcheng el 21 de En. de 2024
Comentada: Image Analyst el 22 de En. de 2024
I am trying to make MATLAB recognize ellipse in the image, but no matter how I adjust the thresholds for imbinarize and imadjust, MATLAB cannot fully recognize it. Are there any other methods I can try?
original file is attached
  3 comentarios
KALYAN ACHARJYA
KALYAN ACHARJYA el 21 de En. de 2024
You can experiment with image filter or adjustment, followed by thresholding, and then proceed with a series of morphological steps. The precise steps for segmentation can be provided once I tried the initial process.

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Image Analyst
Image Analyst el 21 de En. de 2024
  2 comentarios
luo jingcheng
luo jingcheng el 21 de En. de 2024
tried, the result wasn't very good
Image Analyst
Image Analyst el 22 de En. de 2024
Keep trying -- sometimes it's tricky to get all the options adjusted correctly.

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