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Weak edge(Curve) detection in low contrast

Hi, Everyone.

I am trying to detect the curve in the image below , (it's not a straight line). I tried almost all classical edge detection methods with different parameters ( Canny , Sobel , Shen , Shaar , Deriche)

I also tried local shareholding with different methods but results are not satisfying.

Any kind of help is welcome.

Thank you.

Weak curve

Weak edge(Curve) detection in low contrast

Hi, Everyone.

I am trying to detect the curve in the image below , (it's not a straight line). I tried almost all classical edge detection methods with different parameters ( Canny , Sobel , Shen , Shaar , Deriche)

I also tried local shareholding with different methods but results are not satisfying.

Any kind of help is welcome.

Thank you.

Weak curve

Weak edge(Curve) detection in low contrast

Hi, Everyone.

I am trying to detect the curve in the image below , (it's not a straight line). I tried almost all classical edge detection methods with different parameters ( Canny , Sobel , Shen , Shaar , Deriche)

I also tried local shareholding with different methods but results are not satisfying.

Any kind of help is welcome.

Thank you.

Weak curveimage description

Weak edge(Curve) detection in low contrast

Hi, Everyone.

I am trying to detect the curve in the image below , (it's not a straight line). I tried almost all classical edge detection methods with different parameters ( Canny , Sobel , Shen , Shaar , Deriche)

I also tried local shareholding thresholding with different methods but results are not satisfying.

Any kind of help is welcome.

Thank you.

image description