MATLAB: I get the error when i m trying to generate the hdl code for a matlab program by hdl coder… the error is ‘In emlhdlcode​r.WorkFlow​.Manager/w​fa_generat​eCode (line 627)’… help me to solve this error.. thanks in advance..

arnold transformHDL Coderimage watermarking

clc;
clear all;
close all;
image1=imread('C:\Users\dell pc\Pictures\barbaraa.tif');
imag1=rgb2gray(image1);
im1=imresize(imag1,[256 256]);
im2=im2uint8(im1);
subplot(2,2,1);
figure(1);
imshow(im2);title('original image');
image2=stdfilt(im2);  
subplot(2,2,2);
imshow(image2,[]);
title('standard deviation map');
t2=0.1*max(max(image2));
for i=1:256
    for j=1:256
        if image2(i,j) < t2
           s(i,j)=0;
        else
           s(i,j)=1;
          end
      end
  end
  subplot(2,2,3); 
  imshow(s); 
  title('binarized standard deviation map');
%# desired number of horizontal/vertical tiles to divide the image into
numBlkH = 4;
numBlkW = 4;
%# compute size of each tile in pixels

[imgH,imgW,~] = size(s);
szBlkH = [repmat(fix(imgH/numBlkH),1,numBlkH-1) imgH-fix(imgH/numBlkH)*(numBlkH-1)];
szBlkW = [repmat(fix(imgW/numBlkW),1,numBlkW-1) imgW-fix(imgW/numBlkW)*(numBlkW-1)];
%# divide into tiles, and linearize using a row-major order

C = mat2cell(s, szBlkH, szBlkW)';
C = C(:);
image1=imread('C:\Users\dell pc\Pictures\barbaraa.tif');
imag1=imresize(image1,[256 256]);
numBlkH = 4;
numBlkW = 4;
%# compute size of each tile in pixels
[imgH,imgW,~] = size(im2);
szBlkH = [repmat(fix(imgH/numBlkH),1,numBlkH-1) imgH-fix(imgH/numBlkH)*(numBlkH-1)];
szBlkW = [repmat(fix(imgW/numBlkW),1,numBlkW-1) imgW-fix(imgW/numBlkW)*(numBlkW-1)];
%# divide into tiles, and linearize using a row-major order
P = mat2cell(im2, szBlkH, szBlkW)';
P = P(:);
 %# display tiles i subplots
for i=1:numBlkH*numBlkW
    subplot(numBlkH,numBlkW,i), imshow( P{i} )
end
figure
a=1;b=1;
for i=1:16
        c1(:,:,i)=cell2mat(C(i));
        p1(:,:,i)=cell2mat(P(i));
        sum1=sum(sum(c1(:,:,i)));
        t(:,:,i)=sum1/(64*64);
        if t(:,:,i) < 0.85
            poortext(:,:,a)=c1(:,:,i);
            poortext1(:,:,a)=im2double(p1(:,:,i));
            a=a+1;
        else
            text(:,:,b)=c1(:,:,i);
            text1(:,:,b)=p1(:,:,i);
              b=b+1;
          end
  end
    for i=1:a-1
        d=(poortext1(:,:,i));
        subplot(4,4,i)
        imshow(d);
        title('poor-texture');
    end
     figure
    for i=1:b-1
        d1(:,:,i)=(text1(:,:,i));
        d2=d1(:,:,i);
        subplot(4,4,i)
         imshow(d2);
         title('texture');
    end 
  %   figure
    k2=1;
  for i=1:b-1
      [ll,lh,hl,hh]=dwt2(d1(:,:,i), 'haar');
   llc(:,:,k2)=(ll);
  % subplot(2,2,1);
  % imshow(llc);
   lhc(:,:,k2)=(lh);
  %  subplot(2,2,2);
  %  imshow(lhc);
   hlc(:,:,k2)=(hl);
  %  subplot(2,2,3);
  %  imshow(hlc);
   hhc(:,:,k2)=(hh);
  %  subplot(2,2,4);
  %  imshow(hhc); 
   k2=k2+1;
  end
figure
imag1 = imread('peppers.png');imag2=rgb2gray(imag1);
im3= imresize(imag2, [64, 64]);
imshow(im3);
figure
imag3=im2double(im3);
ima=arnold(imag3,24);
imshow(mat2gray(ima));
[lllo,lhlo,hllo,hhlo]=dwt2(double(ima),'haar');
ll1=mat2gray(lllo);
subplot(2,2,1);
 imshow(ll1);
title('LL');
ll1=mat2gray(lllo);
subplot(2,2,2);
 imshow(ll1);
title('LH');
lh1=mat2gray(lhlo);
subplot(2,2,3);
 imshow(lh1);
title('HL');
hl1=mat2gray(hllo);
subplot(2,2,4);
 imshow(hl1);
title('HH');
for i=1:2
    llf(:,:,i)=llc(:,:,i)+0.001*lllo;
    lhf(:,:,i)=lhc(:,:,i)+0.01*lhlo;
    hlf(:,:,i)=hlc(:,:,i)+0.01*hllo;
    hhf(:,:,i)=hhc(:,:,i)+0.01*hhlo;
end
figure
for i=1:2
    y(:,:,i)=idwt2(llf(:,:,i),lhf(:,:,i),hlf(:,:,i),hhf(:,:,i),'haar');
    s1(:,:,i)=mat2gray(y(:,:,i));
    a2=s1(:,:,i);
    subplot(4,4,i)
   imshow(a2); 
end
figure
 i1=1;
 j1=1;
        a1(i1:i1+63, j1:j1+63)=poortext1(:,:,1);
        a1(i1:i1+63, 65:65+63)=poortext1(:,:,2);
        a1(i1:i1+63, 129:129+63)=poortext1(:,:,3);
        a1(i1:i1+63, 193:193+63)=mat2gray(s1(:,:,1));
        a1(65:65+63, j1:j1+63)=poortext1(:,:,4);
        a1(65:65+63, 65:65+63)=poortext1(:,:,5);
        a1(65:65+63, 129:129+63)=poortext1(:,:,6);
        a1(65:65+63, 193:193+63)=poortext1(:,:,7);
        a1(129:129+63, j1:j1+63)=poortext1(:,:,8);
        a1(129:129+63, 65:65+63)=poortext1(:,:,9);
        a1(129:129+63, 129:129+63)=poortext1(:,:,10);
        a1(129:129+63, 193:193+63)=poortext1(:,:,11);
        a1(193:193+63, j1:j1+63)=poortext1(:,:,12);
        a1(193:193+63, 65:65+63)=mat2gray(s1(:,:,2));
        a1(193:193+63, 129:129+63)=poortext1(:,:,13);
        a1(193:193+63, 193:193+63)=poortext1(:,:,14);
        imshow(a1);
      for i=1:2
      lle(:,:,i)=(llc(:,:,i)-llf(:,:,i))/0.001;
      lhe(:,:,i)=(lhc(:,:,i)-lhf(:,:,i))/0.01;
      hle(:,:,i)=(hlc(:,:,i)-hlf(:,:,i))/0.01;
      hhe(:,:,i)=(hhc(:,:,i)-hhf(:,:,i))/0.01;
  end
figure
for i=1:2
    f(:,:,i)=idwt2(lle(:,:,i),lhe(:,:,i),hle(:,:,i),hhe(:,:,i),'haar');
    s2=mat2gray(f(:,:,i));
      subplot(4,4,i)
      imshow(s2);   
        figure
        ima2=iarnold(s2,24);
        ima1=imcomplement(ima2);
  % subplot(7,7,inc)
  imshow(ima1)
  figure     
      iminverse1=im2double(ima1);
      cc1=corr2(imag3,ima1)
  end
% % PSNR
    image3=im2double(im1);
    peaksnr = psnr(image3,a1);
    cc=corr2(image3,a1);
% % NCC
this is my test script..

Best Answer

It's hard to say what your immediate problem is with no error message listed, but I strongly suspect that you are using functions that are not supported for HDL code generation. The first several commands in your code are all not supported by HDL Coder. I expect that they all belong in the testbench and not the code you want to generate HDL from. Your code starts with:
 clc;
 clear all;
 close all;
 image1=imread('C:\Users\dell pc\Pictures\barbaraa.tif');
 imag1=rgb2gray(image1);
 im1=imresize(imag1,[256 256]);
 im2=im2uint8(im1);
 subplot(2,2,1);
 figure(1);
 imshow(im2);
 title('original image');
 image2=stdfilt(im2);
 subplot(2,2,2);
 imshow(image2,[]);
 title('standard deviation map');
There's literally nothing in this code fragment that you can generate hardware out of.
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