Image processing GLCM gray level cooccurance matrix
显示 更早的评论
In function graycomatrix,the output is always 8x8 matrix,i am not getting why its 8x8 ,can anybody help me out
1 个评论
aliah aljohani
2017-9-22
hi when i use this code I = imread('circuit.tif'); glcm = graycomatrix(I,'Offset',[2 0])
i get this error Error in graycomatrix (line 167) [I, Offset, NL, GL, makeSymmetric] = ParseInputs(varargin{:});
Error in Untitled56 (line 2) GLCM = graycomatrix(I,'Offset',[2 0;0 2]); can help me and thank you
回答（2 个）
Youssef Khmou
2013-3-5
0 个投票
hi,
We already discussed that topic , so as to avoid redundancy take a quick look at this topic you will find the answer : http://www.mathworks.com/matlabcentral/answers/64179-what-is-meant-by-glcm-mean-average
Teja Muppirala
2013-3-6
It's just the default setting. You can change the size by using the 'NumLevels' parameter.
For example,
I = imread('pout.tif');
G = graycomatrix(I,'NumLevels', 64);
imagesc(G)
See the help:
>> help graycomatrix
...
...
...
'NumLevels' An integer specifying the number of gray levels to use
when scaling the grayscale values in I. For example,
if 'NumLevels' is 8, graycomatrix scales the values in
I so they are integers between 1 and 8. The number of
gray levels determines the size of the gray-level
co-occurrence matrix (GLCM).
'NumLevels' must be an integer. 'NumLevels' must be 2
if I is logical.
Default: 8 for numeric
2 for logical
...
...
...
类别
在 帮助中心 和 File Exchange 中查找有关 Texture Analysis 的更多信息
2017-9-22
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
