conversion of image file into binary txt file

Question

megha 2013-12-18

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https://ww2.mathworks.cn/matlabcentral/answers/110095-conversion-of-image-file-into-binary-txt-file

回答： Image Analyst 2013-12-18

I have converted the image file into binary txt file using this: I = imread ('app-log-icon.png') Y = rgb2gray(I) level = graythresh(Y) BW = im2bw(Y,level) Z = imresize(Y,[40 40]) dlmwrite('C:\Users\Prasann\Desktop\new.txt',BW,' ') But i dont want any space or Comma between two elements so how should i proceed with this problem as i have to call this binary txt file in my verilog coding thank u

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Answer 1

Thomas Seers 2013-12-18

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Hi megha

You can do the following

 Urbinary = [0 1 0 0 1 0 1 0; % it says hi by the way!
             0 1 0 0 1 0 1 0;
             0 1 1 1 1 0 1 0;
             0 1 0 0 1 0 1 0;
             0 1 0 0 1 0 1 0]
 [rows, cols] = size(Urbinary);
 bins = cell(rows*cols,1);
 bin_vect = reshape(Urbinary, rows*cols,1);
 for i = 1:size(bin_vect) 
     bins{i} = num2str(bin_vect(i)); % convert to strings and put in a cell
 end
 bin_shape = reshape(bins,rows,cols);
 char_bin = reshape(horzcat(bin_shape{:}),rows,cols); concatenate and reshape back to original 
 % write to desired location
 [filename, pathname] = uiputfile('*.txt', 'Locate directory for to write .txt file to');
 outpath = strcat(pathname,filename);
 fid = fopen(outpath,'w');
    for i=1: size(char_bin,1)
        fprintf(fid,'%s\r\n',char_bin(i,:));
    end
 fclose(fid);