correcting haralick features code

Why is this code not working and returns

('error' .... out = features_calc(GLCMS,{'autoc','dissi','cshad','entro'}), Undefined function or variable 'features_calc'.

Can any one help me in correcting this codes? I need to calculate and display all haralick features,please

I=dicomread('mri.dcm');
k=rgb2gray(I);
h = uint8(k);
offsets=[0 1;-1 1;-1 0;-1 -1; 1 1; 0 -1; 1 -1; 1 0];
[GLCMS,SI] =graycomatrix(h,'Offset',offsets);

out = features_calc(GLCMS,{'autoc','dissi','cshad','entro'});
g1 =out.outoc;
g2 =out.diss;
g3 =out.cshad;
g4=out.entro;

out=('autoc dissi cshad entro');
figure,imshow(g1);
figure,imshow(g2);
figure,imshow(g3);

[Image Analyst]

Please attach 'mri.dcm'. Youi might have to put it in a zip file.

[Image Analyst]

If you have any more questions, then attach your dicom file with the paperclip icon after you read this:

TUTORIAL: How to ask a question (on Answers) and get a fast answer

[eten hyle]

I=dicomread('mri.dcm');

k=rgb2gray(I);

h = uint8(k);

offsets=[0 1;-1 1;-1 0;-1 -1; 1 1; 0 -1; 1 -1; 1 0];

[GLCMS,SI] =graycomatrix(h,'Offset',offsets);

out = features_calc(GLCMS,{'autoc','dissi','cshad','entro'});

g1 =out.outoc;

g2 =out.diss;

g3 =out.cshad;

g4=out.entro;

out=('autoc dissi cshad entro');

figure,imshow(g1);

figure,imshow(g2);

figure,imshow(g3);

[eten hyle]

sir,the image above is the one i tried to use

Answer 1

[Suraj Kumar]

Hi Eten,

To calculate and display certain Haralick features from a DICOM image, you can use the ‘graycoprops’ function in MATLAB and compute some standard Haralick features that are available such as Contrast, Correlation, Energy and Homogeneity.

% Haralick features using graycoprops 
stats = graycoprops(GLCMS, {'Contrast', 'Correlation', 'Energy', 'Homogeneity'}); 
% Display the features 
fprintf('Contrast: %f\n', stats.Contrast); 
fprintf('Correlation: %f\n', stats.Correlation); 
fprintf('Energy: %f\n', stats.Energy); 
fprintf('Homogeneity: %f\n', stats.Homogeneity);

To know more about the ‘graycoprops’ function, you can refer the following page:

• https://www.mathworks.com/help/images/ref/graycoprops.html

Hope this works for you!