Piotrs Image Video Matlab Toolbox使用

想提取hog特征，，大牛向我推荐Piotr’s Image & Video Matlab Toolbox，~pdollar/toolbox/doc/index.html网站上下载，下载之后addpath(genpath(‘c:\toolbox’)); savepath;toolboxCompile;

运行

I=double(imread(‘cameraman.tif’));

figure(1); im(I)

tic, H=hog(I,8,9); toc, V=hogDraw(H,25); figure(2); im(V)

还是有错误。

Error using gradientMexI has incorrect type.Error in gradientMag (line 51)else [M,O]=gradientMex(‘gradientMag’,I,channel,full); endError in hog (line 72)[M,O] = gradientMag( I );

resample下就好了

I=imResample(single(imread(‘cameraman.tif’)),[250 250])/255;

figure(1); im(I)

tic, H=hog(I,8,9); toc, V=hogDraw(H,25); figure(2); im(V)

成功了

I=imResample(single(imread(‘cameraman.tif’)),[250 250])/255;

figure(1); im(I)

tic, H=hog(I,8,9); toc, V=hogDraw(H,25); figure(2); im(V)

成功

寂寞时，想想我的影子，我会在远方给你一个微笑;难过时，