I have a matlab code which i need to convert in C can anyone help

[EDIT: 20110623 11:12 CDT - reformat - WDR]

   clc;
   I=imread('b2.bmp');
  figure(1),imshow(I);
   I=double(I);
   [M,N] = size(I);

%  blue_mask = repmat([1 0; 0 0], M/2, N/2);
%  green_mask = repmat([0 1; 1 0], M/2, N/2);
%  red_mask = repmat([0 0; 0 1], M/2, N/2);
%  
%  R=I.*red_mask;
%  G=I.*green_mask;
%  B=I.*blue_mask;

   B = I(1:2:end,1:2:end);
  G1 = I(1:2:end,2:2:end);
  G2 = I(2:2:end,1:2:end);
  R = I(2:2:end,2:2:end);
  G = (G1+G2)/2;

   figure(2), imagesc(R);
   figure(3), imagesc(G);
   figure(4), imagesc(B);

   final(:,:,1)=R;
   final(: ,:,2)=G;
   final(: ,:,3)=B;
   final=double(final);
   final=final*125/15;
   final=uint8(final);

%  imshow(final)

% I = imread('b2.bmp');
% J = demosaic(I,'bggr');
% imshow(I);
% figure, imshow(J);

Answer 1

[Walter Roberson]

The computations should be fairly easy.

You will have to find some kind of graphics library to do the figure() and imagesc() parts, as graphics is not part of C and cannot be implemented in standard C.

Reading BMP images is not part of the C language, but you should be able to find a third party library to do the reading for you, as that part can be implemented in standard C

[Chirag Gupta]

You can look at openCV if you are fine with C++