- Convert RGB to Gray
- Gray Image to Binary with adjusting threshold value (As minimum as possible), so that only lines are remain.
- Consider the binary image as mask, and fill the pixels region in original image as per your requiremnts.
- You may apply the average filter to smooth the image on lines and non lines area.
How to remove Horizontal and vertical lines only from an Image?
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A handwritten checked or big square kids maths notebook contains horizontal(H) and vertical(V) lines. Removal of either one H/V lines are possible, that to with the loss of information.Again there are two difficulties faced at the (1)joints of H/V lines and (2) same/different handwriting / margin / checked lines color. Herewith attached a sample checked image without handwriting
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KALYAN ACHARJYA
el 3 de Oct. de 2020
Sir I saw the image on telegram, hope I understand the question, One way is-
Steps:
3rd Step:
GrayImage(mask)=pixel_val; choose any pix_val, which is pixel value near equal to non lines region.
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