texturedtcwt.m

matlab做的图像检索源码

clear;
clc;
level = 3;
FV_e =[];
FV_std = [];

image = imread('22.jpg');
image = RGB2GRAY(image);
[Yl,Yh] = dtwavexfm2(image,level,'near_sym_b','qshift_b');

sz = size(Yl);
FV_e(1) = sum(abs(Yl(:)))/sz(1)*sz(2);
FV_std(1) = std(abs(Yl(:)));

matric = [];
for i=1:level
    for j=1:6
        matric = Yh{i,1}(:,:,j);
        sz = size(matric);
        FV_e((i-1)*6+1+j) = sum(abs(matric(:)))/(sz(1)*sz(2));
        FV_std((i-1)*6+1+j) = std(abs(matric(:)));
    end
end

FV=[FV_e,FV_std];