資源簡介
用統計方式對灰度圖像進行紋理特征提取。構造灰度共生矩陣,通過灰度共生矩陣計算紋理特征。本方式提取四個互不相關的特征,紋理角二階矩、紋理熵、對比度、均勻性。
代碼片段和文件信息
function?Data=wenlitezheng(Image)
?????
?????
[MN]=size(Image);???
?Gray=Image;
%??Gray=rgb2gray(Gray);
%2.為了減少計算量,對原始圖像灰度級壓縮,將Gray量化成16級
%--------------------------------------------------------------------------
for?i?=?1:M
????for?j?=?1:N
????????for?n?=?1:256/16
????????????if?(n-1)*16<=Gray(ij)&&Gray(ij)<=(n-1)*16+15
????????????????Gray(ij)?=?n-1;
????????????end
????????end
????end
end
%?figure(1)imshow(Gray);
%%?灰度共生矩陣
?????P?=?zeros(16164);
for?m?=?1:16
????for?n?=?1:16
????????for?i?=?1:M
????????????for?j?=?1:N
????????????????if?j ????????????????????P(mn1)?=?P(mn1)+1;
????????????????????P(nm1)?=?P(mn1);
????????????????end
????????????????if?i>1&&j
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