matlab-命令学习

1.     exist - exist file or other things

if~exist(metaDir, 'file');

    metaDir = '\\netapp-ma\public\stereo_of_data\';

End

2.     fullfile - complete the file path

dataDir= fullfile(metaDir, '4m4fb1.0');

3.     medfilt2 - 2-D median filter

fori=1:size(data.uvsmall,3);

    data.uvmedian(:,:,i) =medfilt2(data.uvsmall(:,:,i), [5 5], 'symmetric');

End

4.     resize - image resize function

data.uvFull= imresize(data.uvmedian, [Hs*4, Ws*4], 'bilinear', 'Antialiasing', false);

data.uvbFull= imresize(data.uvmedian_b, [Hs*4, Ws*4], 'bilinear', 'Antialiasing', false);

5.     shiftdim - shift dimensions

http://voyageman.blog.163.com/blog/static/176683080201533111130151/

6.     numel - number of elements

N= numel(x(:));

7.     Sort

x= sort(x(:), 'ascend');

8.     E(:) - multiple dimensions to nx1dimension

sum((E(:)>tau))/nValid;

9.     interp2 - 2D interpolation

http://blog.sina.com.cn/s/blog_6a4eb38401011ef3.html

10.  find - findindices of nonzero elements

nValid= length(find(F_val));