Clear Filters
Clear Filters

Help with word segmentation

4 views (last 30 days)
shru s
shru s on 8 Jun 2017
Answered: Akshay Raj on 8 Jan 2020
I have the following image
I have been trying to segment it into 2 words but i have not been able to. could anyone please help me with this.

Accepted Answer

Rik
Rik on 8 Jun 2017
A quick and dirty method that may not always work is this:
IM=imread('li.jpg');
IM=IM(321:472,97:1106,:);%crop white field
IM_BW=mean(IM,3)/255;%convert to grey scale double
IM_projection=logical(max(IM_BW,[],1));
idx_end=find(diff(IM_projection)<0);%col index where a letter ends
idx_start=find(diff(IM_projection)>0);%col index where a letter ends
%This may not be true if the letters are kerned
distance=idx_start(2:end)-idx_end(1:(end-1));
split_col_idx=idx_end([distance>50 false])+1;%50 is a threshold distance
%split_col_idx contains the column where you should split the words
The result here is that you should split at columns 465 and 713 in the cropped image, which is indeed after the y and the s.
  3 Comments
Rik
Rik on 8 Jun 2017
Experience. Learn from your mistakes and the mistakes from others. Muck about, just trying stuff. As long as it is not your job to develop Matlab code, it is OK to make stupid mistakes, so make them and learn from them.
If you want more advice (and with more helpful resources), check out this post.
(and if my answer helped you, please hit the button to accept it)
As for saving the separate files, check out the function imwrite. You can open the documentation by typing doc imwrite in the Matlab command prompt. If you are unsure of how to actually split the file, have a look at my second line of code. (that's another free tip: steal and adapt code from others (but do give them credit when you share your adapted version))
shru s
shru s on 11 Jun 2017
Thank you so much for your help!

Sign in to comment.

More Answers (1)

Akshay  Raj
Akshay Raj on 8 Jan 2020
I WANT TO EXTRACT WORD LEVEL AND NEED TO SAVE THOSE WORDS IN A FOLDER ANYBODY KNOWS PLESE HELP ME OUT

Categories

Find more on Convert Image Type in Help Center and File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!