text.png how to remove vertical lettering on a photo?

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betty 2022-1-6

评论： betty 2022-1-6

how to remove all of the vertical text in the image below? i'm trying the following code but it doesn't work

I=imread('text.png');

figure,imshow(I)

[r c]=ginput(4);

BW1=roipoly(I,r,c);

figure , imshow(BW1)

J = regionfill(I,r,c);

figure , imshow(J)

Simon Chan 2022-1-6

regionfill supports grayscale image and your input image is a black and white image only.

Therefore, regionfill gives an error.

In your case, just use:

I(BW1)=0

to give you the final image

Simon Chan 2022-1-6

The function was introduced in R2018b, so I think you have an eariler MATLAB version.

betty 2022-1-6

yes, I am using R2018a.

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