How can we find the internal width of a alphabet?

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Muhammad Bilal
Muhammad Bilal el 6 de Jun. de 2020
Comentada: Muhammad Bilal el 6 de Jun. de 2020
Hi,
How can we find the internal width of a alphabet for a complete region and store as a array? Is there any command in MATLAB or any other way? The image file has been attached herein.
Thanks
~Muhammad Bilal
  2 comentarios
Rik
Rik el 6 de Jun. de 2020
Your question sounds like you have many images you want to measure this on. Can you show other images as well? For this image you can use find to find the first and last black pixel in your image on a specific row, but that might not work for all your cases.
Muhammad Bilal
Muhammad Bilal el 6 de Jun. de 2020
Yes, you are right. My end goal is a little bit complex. Anyway, thank you for your concern. @Ameer Hamza answered to my question.

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Ameer Hamza
Ameer Hamza el 6 de Jun. de 2020
Editada: Ameer Hamza el 6 de Jun. de 2020
Try this
im = im2double(imread('alif.png'));
im_gray = rgb2gray(im);
im_bin = imbinarize(im_gray);
[row, col] = find(~im_bin);
width_pixel = mean(splitapply(@numel, col, findgroups(row)));
It calculates the mean of pixel width across all rows in which the character is present.
  5 comentarios
Ameer Hamza
Ameer Hamza el 6 de Jun. de 2020
That question is much more complicated, and completely automating it might need much effort. Maybe you can make it partially automatic by using ginput().
Muhammad Bilal
Muhammad Bilal el 6 de Jun. de 2020
Yes, you are right. But I am trying to resolve this problem.
Thank you for your suggestions

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