how to do horizontal projection histogram of an image

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DB
DB 2017-2-17
评论： Rik 2017-2-21
Can any one tell me how to do horizontal projection histogram of an image

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Rik
Rik 2017-2-17
You mean something like this?
A=imread('pout.tif');%load image
A=mean(A,1);%get the mean (or use sum or max) - these convert the data to double
histogram(A)%generate histogram
  2 个评论
DB
DB 2017-2-21
Thank you sir ,
I got histogram but how to project the horizontal projection of an image particularly this image
can you please tell me how to do it ....?
Rik
Rik 2017-2-21
There are 3 possibilities for a horizontal projection: a mean, a maximum value and a sum. The mean and the sum differ only in magnitude (and both convert your data to double). The projection convert your 2D image to a 1D signal, so you can use something like bar(A) or plot(A).

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