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Abhijit Das


Last seen: 4 years ago |  Active since 2011

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Extract elements from a matrix
I have matrices 'a' m-by-m, 'b' n-by-n. I want elements of the matrix c=a(5,5)*b(3,3)*a which is m-by-m matrix. So can I...

14 years ago | 1 answer | 0

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extract sub matrix of sub matrix directly
I have matrix a m-by-n-by-p. b=a(:,:,1) is a sub matrix of a. I want to extract sub matrix of b (say c) so that c=b(1:...

14 years ago | 2 answers | 0

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Question


Extract sub matrices
I have a matrix A=magic(4); (say) I want 4x4 matrices from A such that the 16 matrices can be saved with different names. ...

14 years ago | 2 answers | 0

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Question


Add Poisson Noise in an image
I have an image in JPEG format. I want to add Poisson noise in the image. >> a=imread('pattern2.jpg'); >> J =imnoise(a,'p...

14 years ago | 2 answers | 0

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