how to plot intensity graph for an image

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saravanan.R
saravanan.R 2014-2-22
评论： Vedpal Singh 2014-12-30
hi, i want to plot a intensity graph of an image like this
for an image
to find out the either closed or opened state of eye. i need this for my project. thank you
  1 个评论
Vedpal Singh
Vedpal Singh 2014-12-30
Hello,
To sort out this problem, I think improfile command is the best option.
VP Singh

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Dishant Arora
Dishant Arora 2014-2-22
编辑：Dishant Arora 2014-2-22
Convert it to grayscale and take mean along the rows using mean(I,2)
I = rgb2gray('fullfilename')
plot(1:size(I,1) , mean(I,2));
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saravanan.R
saravanan.R 2014-2-23
i got this graph for a above eye image. can i find out the state of the eye whether it is closed or not using this intensity graph. if not means can u tel me any other method to do so. eye state detection is important section in my project. can u help me
Dishant Arora
Dishant Arora 2014-2-23
编辑：Dishant Arora 2014-2-23
If the eye is closed distance between the two deep valleys would increase. As eyelashes would go down.

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