unexpected figure with inverted child photo pops up when i run my code

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Ayesha ayub
Ayesha ayub 2014-9-14
编辑： David Young 2014-9-23
i'm trying to count people in a video but i dont want to display the video .the code works fine but every time i run the code a figure pops up. i have no idea why can some one help me
here's my code:
mov = mmreader('SampleVideo.avi'); for i=1:mov.NumberOfFrames img = read(mov,i); th = graythresh(image);
binaryImage = im2bw(image,th); cc = bwconncomp(binaryImage,4); number_of_people= cc.NumObjects; end display(number_of_people )

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回答（2 个）

Image Analyst
Image Analyst 2014-9-14
It could be an easter egg: http://www.mathworks.com/matlabcentral/answers/2001#answer_3188
but I don't really know since the deprecated function mmreader has finally been removed by R2014a and so I can't run it. Why don't you use one of the function that they've been recommending to replace it, such as VideoReader?
David Young
David Young 2014-9-23
编辑：David Young 2014-9-23
It's because you are assigning a value to img but using the value of image, which has the side effect of displaying the boy.
Replace
th = graythresh(image);
with
th = graythresh(img);
and likewise wherever you use image, to make your code consistent.

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