Image processing GLCM gray level cooccurance matrix

1 次查看（过去 30 天）
NA
NA 2013-3-5
评论： aliah aljohani 2017-9-22
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
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

请先登录，再进行评论。

请先登录，再回答此问题。

回答（2 个）

Youssef Khmou
Youssef Khmou 2013-3-5
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
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 Help Center 和 File Exchange 中查找有关 Texture Analysis 的更多信息

标签

产品

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by