How to remove header line (Shirorekha) from devanagari word/text?

6 次查看（过去 30 天）

A B Shinde 2014-6-11

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/133678-how-to-remove-header-line-shirorekha-from-devanagari-word-text

评论： srijana prasad 2017-5-3

marathi_word_3.jpg

I was able to plot the horizontal projection of the image and came to know that where is shirorekha... but how to remove that headerline?

my code is...

I = imread('marathi_word_3.jpg'); imshow(I); title('Original Scanned Document');

level = graythresh(I); doc_binary = im2bw(I,level); % figure, imshow(doc_binary); title('Binary Document');

J = imcomplement(doc_binary); figure, imshow(J);

% horizontal projection horizontalProjection = mean(J,2); figure, plot(horizontalProjection, 'b-'); title('Horizontal Projection/Horizontal Histogram');

3 个评论
显示 1更早的评论隐藏 1更早的评论

Image Analyst 2017-5-2

在 MATLAB Online 中打开

I think the problem was/is knowing which rows are the "shirorekha row". You have not given the algorithm for that. I think you might be able to do it by

shirorekhaRows = horizontalProjection < someValue;

This relies on the fact that the row with the line that goes most of the way across the image will be the darkest rows in the vertical profile (horizontalProjection).