Image is homogenous,white bright.?

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leena
leena 2016-6-15
评论： Image Analyst 2016-7-5
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

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回答（1 个）

Image Analyst
Image Analyst 2016-6-15
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.
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leena
leena 2016-7-5
@ImageAnalyst how inhomogeneous with or without horizontal bands is identified"?how to modify this code?
Image Analyst
Image Analyst 2016-7-5
You need to define some threshold
if std(ROI(:)) > 5 % Or whatever value you want
% It's not homogeneous
else
% It's homogeneous
end

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