用骷髏保存Kinect，Matlab和圖片

Question

我使用Matlab和Kinect傳感器處理一個項目。我有功能爲Kinect傳感器拍攝照片進行訓練。問題是我想用Skeleton將圖片保存在視頻中顯示的數據集中。它只保存沒有骨架的圖片。

我認爲這是錯誤的地方這個行：

imwrite(img, fullfile(fileLocation,sprintf('Picture%d.png', nImages))); 

，而不是IMG，必須是別的東西。

預先感謝您。

我的代碼是：

function Sample(MainFolderName, ObjectFolderName,delay) 


if nargin < 3 
    delay = 0.1; 
end 

videoC = videoinput('kinect',1); 
videoDepth = videoinput('kinect',2); 


%% Skeleton info 
triggerconfig(videoDepth,'manual'); 
videoDepth.FramesPerTrigger=1; 
videoDepth.Triggerrepeat=inf; 
set(getselectedsource(videoDepth),'TrackingMode','Skeleton') 

start(videoDepth); 
for i=1:100 
    trigger(videoDepth); 
    [depthMap,~,depthMetaData]=getdata(videoDepth); 
    imshow(depthMap,[0 4000]); 
end 

%% 
skeletonJoint=depthMetaData.JointImageIndices(:,:,depthMetaData.IsSkeletonTracked); 
imshow(depthMap,[0 4000]); 
hold on; plot(skeletonJoint(:,1),skeletonJoint(:,2),'*'); 
stop(videoDepth); 

%% Draw and track skeleton 
triggerconfig(videoC,'manual'); 
videoC.FramesPerTrigger=1; 
videoC.Triggerrepeat=inf; 
start(videoDepth); 
start(videoC); 

%% Create folder with label name 
fileLocation = fullfile(MainFolderName,ObjectFolderName); 
if ~exist(ObjectFolderName,'file') 
    mkdir(fileLocation) 
end 

%% Take pictures 
nImages = 1; 
fig = figure('Name','Pictures for training','NumberTitle','off'); 
ax = axes('Parent',fig); 
try 
    while ishandle(fig) 
     pause(delay); 
     trigger(videoC); 
     trigger(videoDepth); 
%   [frameDataColor] = getdata(videoUlaz); 
      img = getdata(videoC); 
%   image = frameDataColor(:,:); 
    [depthMap,~,depthMetaData]=getdata(videoDepth); 
    if sum(depthMetaData.IsSkeletonTracked)>0 
     skeletonJoints=depthMetaData.JointImageIndices(:,:,depthMetaData.IsSkeletonTracked); 
      util_skeletonViewer(skeletonJoints,img,1); 
     imwrite(img, fullfile(fileLocation,sprintf('Picture%d.png', nImages))); 
     title(sprintf('Number: %3.0f',nImages)) 
     nImages = nImages+1; 
%  else 
%  imshow(img); 
    end 
    end 
    stop(videoC); 
    stop(videoDepth); 
    imaqreset; 
catch 
    imaqreset; 
end 
%% Display Info 
nImages = size(ls(fullfile(fileLocation,'*.png')),1); 
disp('---------Training images!---------') 
disp(['Name: ',ObjectFolderName]) 
disp(['Nubmer: ',num2str(nImages)]) 
disp(['Location: ',fullfile(pwd,fileLocation)]) 

Answer 1

改變這一行：

imwrite(img, fullfile(fileLocation,sprintf('Picture%d.png', nImages))); 

這些：

frame = getframe; 
imwrite(frame.cdata, fullfile(fileLocation,sprintf('Picture%d.png', nImages))); 

N.B：我假設你util_skeletonViewer是this one。