Saving segmented character sequentially (Matlab)

1 次查看（过去 30 天）

ana ain 2016-8-2

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/298039-saving-segmented-character-sequentially-matlab

编辑： per isakson 2017-4-2

I have the code for word images segmentation into characters. The segmentation is running well. But I have to save all the result of segmented words (each character image as one file) sequentially. But this code just save the last segmented character in every word images. The code is as follow:

for z = 1: 300
      name1 = strcat ('data (',int2str(z),').png');
      name2 = strcat ('D:\1. Thesis FINISH!!!\source\', name1);
      a = imread (name2);
      myFolder = 'D:\1. Thesis FINISH!!!\coba';
      %%Binarization %%
      level = graythresh (a);
      b = im2bw (a, level);
      %%Complement %%
      c = imcomplement (b);
      %%PadArray %%
      i=padarray(c,[0 10]);
      %%Vertical Projecttion for Character Segmentation
      verticalProjection = sum(i, 1);
      set(gcf, 'Name', 'Segmentation Trial', 'NumberTitle', 'Off') 
      subplot(2,2,1);imshow(i); 
      subplot(2,2,3);
      plot(verticalProjection, 'b-');
      grid on;
      % *Defining the threshold to determine baseline area* % 
      threshold=max(verticalProjection)/3;
      % threshold = 0;
      % threshold=min(verticalProjection)/3;
      % threshold = 5; % Threshold >0 used for cursive characters 
      thresholdedProjection=verticalProjection > threshold;
      count=0;
      startingColumns = [];
      startingColumnsIndex=0;
      for j =1:length(thresholdedProjection)
          if thresholdedProjection(j)
              if(count>0)
                  startingColumnsIndex=startingColumnsIndex+1;
                  startingColumns(startingColumnsIndex)= j-floor(count/2);
                  count=0;
              end
          else
              count=count+1;
          end
      end
      endingColumns=[startingColumns(2:end)-1 j-floor(count/2)];
      y = 1;
      % *Extract each region, result of segmentation process* 
      for k = 1 : length(startingColumns)
          % Get sub image of just one character
          subImage = i(:, startingColumns(k):endingColumns(k)); 
          % im = subImage;
          s = subImage;
          % Normalization using algorithm 2 %
          p = normalization2 (s);
          subplot(2,2,2); 
          imagesc (p); 
          axis equal off;
          pause (1); 
      %   figure, 
          imshow (p);
          % Morphological Operation - Thinning %
          t = bwmorph(p,'thin',Inf);  
      end
      % savename = char (strcat (myFolder, name1));
          baseFileName = sprintf('data.%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(t, fullFileName);
      % imwrite (t, fullfile (myFolder, sprintf ('data.%d.png', y)));
      % y = y+1;
      end;

The saved file of segmented characters is supposed to be like this:

But the code doesn't work. Any help and explanation would be very appreciated.

Thank you

2 个评论
显示无隐藏无

yamina jafri 2017-4-2

Hello @ana ain i try alot to do segmentation from word to character..but I did not succeed! can you please help me this is my email: yaminajafri@yahoo.com