How to remove vertical line noise from binary image

I have the following binary image of an ear. I want to remove the vertical noisy lines from the left part of the image so that i get just the outline of the ear. I seem to fail to find a required filter which can do my job. I would be really obliged if I could get the answer to my question.

[KALYAN ACHARJYA]

"vertical noisy lines

Can you clarify more, please be specific, Maths defination would be much better?

[Sourya Saha]

I need the outline of the ear image above and not the noise on the left portion of the image. Since the image is huge, you may have to scroll left to right to see the image. I only need to extract the ear portion of the image. What do i do? Also, the technique should be a generalized one so that I can apply it to any such binary image of an ear

Answer 1

[KALYAN ACHARJYA]

result=bwareafilt(bwImage,2);
imshow(result);

[Sourya Saha]

Thank you. But is it possible to retain several more features or curves of the ear? This image will not train a classifier well enough. It has a high bias.

[Sourya Saha]

The curves of the inner part of the ear need to be retained

[KALYAN ACHARJYA]

Try with more values, not 2, you may require to perform other morpho operations before applying bwareafilt.

Or do the edge detection more accurately, so that ROIs can be extracted easily.

[Sourya Saha]

Thank you so much