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bidlee devi


Last seen: 1 year ago |  Active since 2017

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how to locate group of pixels in a large image
suppose i have a group of pixels arranged as 28 29 30 31 30 31 32 30 34 34 33 32 34 34 35 34...

4 years ago | 1 answer | 0

1

answer

Question


A is a matrix of size 32*32.I want to subtract elements of each 4*4 block of A from their respective 4*4 means
A is a matrix of size 32*32. out = blockproc(A,[4 4],@(x)mean(x.data(:))); Using the above code, I am able to reduce A to 8...

5 years ago | 2 answers | 0

2

answers

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multiply each block of a matrix with another matrix
Suppose we have Matrix A of size 32*32 Matrix B of size 8*8. How to multiply each block of 8*8 of A with B? Thanks for the ...

5 years ago | 1 answer | 0

1

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Answered
dot product between system of vectors
Thanks. will do it again.

5 years ago | 0

Answered
dot product between system of vectors
thank you. will check.

5 years ago | 0

Question


dot product between system of vectors
Suppose we have a system of vectors Z and Y of size 3 *3 consisitng of three column vectors with three tuples in each colunm...

5 years ago | 4 answers | 0

4

answers

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how to write code to add some scalar value to each 4by4 cell of a dataset?
hello everyone. need help.I want to add some scalar value to each 4by4 cell of size 64by64. for example : add 10 to first 4by4 ...

6 years ago | 2 answers | 0

2

answers

Question


how to visualize a matrix containing digital data as grayscale image (having the same grey values)
i have a data like this 47 49 47 43 50 50 42 39 42 46 45 46 55 53 46 40 40 43 44 46 54 50 46 43 40 40 43 41 50 44 37 39 45 ...

7 years ago | 1 answer | 0

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Question


I have a 32 * 32 matrix .i want to take mean of each 4*4 so that the matrix is reduced to 8*8 array. Can anyone help me how to do that?
please help me how to take mean of specified dimension from a large array.

7 years ago | 2 answers | 0

2

answers

Question


Please Help!I want to extract same area of interest from the two images (a panchromatic of higher resolution and another one XS image consisting of three bands of less resolution) The area of interest should be common in both. How do i do that???
i have two images. one is panchromatic image and another one a multispectral image consisting of R G B bands. panchromatic has h...

7 years ago | 0 answers | 0

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Question


when i run this code >>hyperImage=imread('19920612_AVIRIS_IndianPine_Site3.tif'); >> plane100 = hyperImage(:, :, 100); the image is displayed as black. but i don't want it as black.
when i run this code >>hyperImage=imread('19920612_AVIRIS_IndianPine_Site3.tif'); >> plane100 = hyperImage(:, :, 100); ...

7 years ago | 1 answer | 0

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Question


I want to do some analysis on this hyperspectral image but when i load this in the matlab workspace it say "Cannot display summaries of variables with more than 524288 elements". my value is 614x1848x220 uint16. how do i overcome this problem
I want to do some analysis on this hyperspectral image but when i load this in the matlab workspace it say "Cannot display summa...

7 years ago | 0 answers | 0

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answers