How can we find the internal width of a alphabet?

1 次查看（过去 30 天）

显示更早的评论

Muhammad Bilal 2020-6-6

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/543275-how-can-we-find-the-internal-width-of-a-alphabet

评论： Muhammad Bilal 2020-6-6

采纳的回答： Ameer Hamza

alif.png

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 个评论
显示无隐藏无

Rik 2020-6-6

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 2020-6-6

Yes, you are right. My end goal is a little bit complex. Anyway, thank you for your concern. @Ameer Hamza answered to my question.

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Ameer Hamza 2020-6-6

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/543275-how-can-we-find-the-internal-width-of-a-alphabet#answer_447161

编辑：Ameer Hamza 2020-6-6

在 MATLAB Online 中打开

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 个评论
显示 3更早的评论隐藏 3更早的评论

Ameer Hamza 2020-6-6

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 2020-6-6