%=============================
%顏色特征提取，hsv顏色空間，使用顏色直方圖采用非均勻量化
%=============================
function?fc=color（imgname）
%tic
img=imread（imgname）;
hsv=rgb2hsv（img）;
%將hsv特征進行非均勻的量化
[heightwidthdim]=size（hsv）;
len=256;
fc=zeros（1len）;
for?i=1:height
????for?j=1:width
????????H=hsv（ij1）*360;
????????S=hsv（ij2）;
????????V=hsv（ij3）;
????????%非均勻化H
????????if?H<=15?||?H>345
????????????h=0;
????????elseif?H>15?&&?H<=25
????????????h=1;
????????elseif?H>25?&&?H<=45
????????????h=2;
????????elseif?H>45?&&?H<=55
????????????h=3;
????????elseif?H>55?&&?H<=80
????????????h=4;
????????elseif?H>80?&&?H<=108
????????????h=5;
????????elseif?H>108?&&?H<=140
????????????h=6;
????????elseif?H?>140?&&?H<=165
????????????h=7;
????????elseif?H?>165?&&?H<=190
????????????h=8;
????????elseif?H>190?&&?H<=22