How to segment cursive/connected (Arabic) word into characters?

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ana ain
ana ain 2016-1-6
编辑： Image Analyst 2020-3-2
I want to segment the connected character. Based on the histogram/profile, i assume that I could segment the character based on it's baseline. but, I still couldn't built an appropriate code to make it works.
I hope, anyone could help :)
The following is the code that could segment isolated character very well. But, still not work for connected character.
% // Original Code by Soumyadeep Sinha //
% Saving each single segmented character as one file
function [segm] = trysegment (a)
myFolder = 'D:\1. Thesis FINISH!!!\Data set\trial';
level = graythresh (a);
bw = im2bw (a, level);
b = imcomplement (bw);
i= padarray(b,[0 10]);
verticalProjection = sum(i, 1);
set(gcf, 'Name', 'Trying Segmentation for Cursive', 'NumberTitle', 'Off')
subplot(2, 2, 1);imshow(i);
subplot(2,2,3);
plot(verticalProjection, 'b-'); %histogram show by this code
% hist(reshape(input,[],3),1:max(input(:)));
grid on;
% % t = verticalProjection;
% % t(t==0) = inf;
% % mayukh = min(t)
% 0 where there is background, 1 where there are letters
letterLocations = verticalProjection > 0;
% Find Rising and falling edges
d = diff(letterLocations);
startingColumns = find(d>0);
endingColumns = find(d<0);
% Extract each region
y=1;
for k = 1 : length(startingColumns)
% Get sub image of just one character...
subImage = i(:, startingColumns(k):endingColumns(k));
% se = strel('rectangle',[2 4]);
% dil = imdilate(subImage, se);
th = bwmorph(subImage,'thin',Inf);
n = imresize (th, [64 NaN], 'bilinear');
figure, imshow (n);
[L,num] = bwlabeln(n);
for z= 1 : num
bw= ismember(L, z);
% Construct filename for this particular image.
baseFileName = sprintf('char %d.png', y);
y=y+1;
% Prepend the folder to make the full file name.
fullFileName = fullfile(myFolder, baseFileName);
% Do the write to disk.
imwrite(bw, fullFileName);
% subplot(2,2,4);
% pause(2);
% imshow(bw);
end
% y=y+1;
end;
segm = (n);
This is the sample of image.
%
  11 个评论
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Mohamed sidhoum
Mohamed sidhoum 2020-3-1
编辑：Image Analyst 2020-3-2
Hey ana,
I want just a help. I saw in ResearchGate that a professor sent you the method on how to segment an Arabic handwriitng word with MATLAB, (with each letter of the word in a picture). Can please email me? I need the code for my mastery final project and I'm stuck.
email : sidhoummohamedcherif@gmail.com
Have a nice day .
Image Analyst
Image Analyst 2020-3-2
编辑：Image Analyst 2020-3-2
Mohamed, please see my attached demo for the Bengali language. Maybe it's similar enough for you to adapt.

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回答（3 个）

chandrapal Singh
chandrapal Singh 2017-12-1
Blob analysis
Image Analyst
Image Analyst 2017-12-1
See http://www.visionbib.com/bibliography/contentschar.html#OCR,%20Document%20Analysis%20and%20Character%20Recognition%20Systems
23.4.8 Other Character Sets
23.4.8.1 Devanagari, Indic, Hindi, Hindu, Bangla, Bengali, Telugu, Characters
23.4.8.2 Arabic Character Recognition
23.4.8.3 Arabic Recognition, Word Level, Word Spotting
23.4.8.4 Farsi, Persian Character Recognition
ih ih
ih ih 2019-12-19
hi ana can get the code if u please
ineed ocr arbic to my help me in project
ih14111227@gmail.com

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