Error using Block Matcher

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Aaron
Aaron 2013-9-4
I'm brand new to the computer vision toolbox, and I'm attempting to use the vision.BlockMatcher command to analyze a piece of each frame of a video. I've been sticking pretty close to the formatting used by mathworks in their examples, but I'm receiving an error message that I cannot explain. it informs me:
Error using vision.BlockMatcher/step Too many input arguments; expected 1 (in addition to the object handle), got 2.
my code:
while ~isDone(videoFileReader);
videoFrame = step(videoFileReader);
Zone = imcrop(videoFrame,[X4(1),X4(2),X4(3),X4(4)])
motion = step(hbm,Background,Zone);
end
The thing that confounds me is that the mathworks example looks exactly the same to me:
3.Compute motion of the two images.
motion = step(hbm, img1, img2);
Anyone have an idea of what I might be doing wrong??
  2 个评论
Anand
Anand 2013-9-4
Can you please provide more context? What's in variables hbm, Background, Zone? What are you trying to achieve? Which example are you looking at?
Walter Roberson
Walter Roberson 2013-9-4
Also which MATLAB version are you using?

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