how to convert gray image pixel values into text file

clc;

clear;

close all;

x=imread('lena512.bmp');

this is code i want this image as 512*512 pixcels matrix as is in text file how thsi is possible....?

[krishna kotha]

clear;

close all;

x=imread('lena512.bmp');

rgbImage = x;

[rows, columns, numberOfColorChannels] = size(rgbImage)

fid = fopen('datat1.txt', 'wt');

for col = 1 : columns

for row = 1 : rows

fprintf(fid, '%d, %d = (%d, %d, %d)\n', ...

row, col, ...

rgbImage(row, col, 1));

end

end

but i need exact colomn and row wise

and iam getting like this

[Rithvik Jonna]

Please use xlswrite function and turn to excel then you can use excel to text file

xlswrite('Image.xls',Image);

https://in.mathworks.com/matlabcentral/answers/46353-excel-to-text-conversion

[krishna kotha]

i tried it but pixcel values jumping iam not getting exact 512*512 matrx