Image is homogenous,white bright.?

Image is homogenous,white bright. can you explain what is homogenous and white bright. I tried

   I = imread('circuit.tif');
    glcm = graycomatrix(I,'Offset',[2 0]);
    stats = graycoprops(glcm,{'contrast','homogeneity'});

I have added input image and i marked the region of interest. I tried bwlabel and extracted the elliptical shape within that red region.I want to check whether the region is

1. homogeneous bright white
2. inhomogeneous with or without horizontal bands
3. inhomogeneous gray
4. inhomogeneous gray to black
5. inhomogeneous black

 How to write a code to distinguish this

Answer 1

[Image Analyst]

I guess homogeneous and bright white would mean that the image is a uniform gray level of 255 or 65535 depending on if it's an 8 or 16 bit image.

[Image Analyst]

You said you "extracted the elliptical shape within that red region" so just pass those gray levels into std() and see what the standard deviation is.

[leena]

can you help me the code of that .how to pass gray levels into std()

[leena]

Obj = [42 43 45 48 49 51 52 54 57];
for k = Obj
    s(k).StandardDeviation = std(double(s(k).PixelValues));
    text(s(k).Centroid(1),s(k).Centroid(2), ...
                sprintf('%2.1f', s(k).StandardDeviation), ...
        'EdgeColor','b','Color','r');
    thisBB = s(k).BoundingBox;
end

If this is ok, i got 92.1 and 95.3 since it is a broken region

[Image Analyst]

OK. Do you have a question? Can you show your binary image?

[leena]

[leena]

i want to know whether the region falls within 1-5 classifications. How to check it?

[leena]

@Image Analyst please help me

[Image Analyst]

I don't know what all your 5 classifications mean, but you have to reduce them to comparisons of mean, std dev, and pattern.

[leena]

@ImageAnalyst how inhomogeneous with or without horizontal bands is identified"?how to modify this code?

[Image Analyst]

You need to define some threshold

if std(ROI(:)) > 5  % Or whatever value you want
   % It's not homogeneous
else
   % It's homogeneous
end