function DS = faceDsCreate(faceInfo, type, feaName, saveOpt, DsName)

if nargin < 1, selfdemo; return; end

if nargin < 2, type = 'gender'; end

if nargin < 3, feaName = 'LBP'; end

if nargin < 4, saveOpt = 1; end

if nargin < 5, DsName = [type 'DS_' feaName '.mat']; end

DS.dataName = type;

display('Start to create DS....');

for i = 1:length(faceInfo)

cropFace = imcrop(imread(faceInfo(i).filename),faceInfo(i).faceRectWithTuning);

[~, ~, dim]=size(cropFace);

if dim>=3, cropFace=rgb2gray(cropFace); end

switch feaName

case 'LBP'

DS.input(:, i) = LBP(cropFace)';

case 'LDP'

DS.input(:, i) = LDP(cropFace)';

case 'LTP'

DS.input(:, i) = LTP(cropFace)';

case 'garbor'

I = imresize(cropFace, [57 76], 'bicubic');

I = histeq(uint8(I));

I = double(I)/255;

DS.input(:, i) = gaborFilter(histeq(I));

otherwise

display('We have no this method!');

end

switch type

case 'age'

if (ageInfo.age <= 75)

DS.output(1, i) = ceil(ageInfo.age/15); % 15: age intervsl

else

DS.output(1, i) = 5;

end

case 'gender'

if strcmp(faceInfo(i).gender, 'male'), DS.output(1,i) = 1; end

if strcmp(faceInfo(i).gender, 'female'), DS.output(1,i) = 2; end

case 'expression'

if strcmp(faceInfo(i).expression, 'HA'), DS.output(1,i) = 1; end

if strcmp(faceInfo(i).expression, 'SA'), DS.output(1,i) = 2; end

if strcmp(faceInfo(i).expression, 'SU'), DS.output(1,i) = 3; end

if strcmp(faceInfo(i).expression, 'AN'), DS.output(1,i) = 4; end

if strcmp(faceInfo(i).expression, 'DI'), DS.output(1,i) = 5; end

if strcmp(faceInfo(i).expression, 'FE'), DS.output(1,i) = 6; end

otherwise

display('We have no this type!');

end

fprintf('progress==>%d / %d\n', i, length(faceInfo));

DS.inputName = cell(1,size(DS.input, 1)); % tmp to present feature

switch type

case 'age'

DS.outputName = {'1-15', '16-30', '31-45', '46-60', '61-'};

case 'gender'

DS.outputName = {'male', 'female'};

case 'expression'

DS.outputName = {'HA', 'SA', 'SU', 'AN', 'DI', 'FE'};

otherwise

display('We have no this type!');

if saveOpt, save(DsName, 'DS'); end

display('Done.');

function selfdemo

mObj=mFileParse(which(mfilename));

strEval(mObj.example);