i split the image pixels into many small matrices

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parvatham vijay
parvatham vijay on 23 Oct 2019
Commented: Rik on 1 Nov 2019
i split the image pixels into many small overlapping matrices
i want to recombine this overlapping matrices how please help
Rik on 23 Oct 2019
Comment posted as answer by parvatham vijay:
Thank you
how to use blockproc for dividing the 256x256 matrix into 3x3 matrix with overlapping,kindly help

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Accepted Answer

Rik on 23 Oct 2019
The blockproc function works on distinct blocks. If you want a sliding window operation you need to use a function like nlfilter.
A = imread('cameraman.tif');%load an included 256x256 example image
fun=@(x) max(x(:));
B=nlfilter(A,[3 3],fun);
%show input and output
figure(1),clf(1)%only use clf during debugging
The function can be as complicated as you want it to be.

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More Answers (1)

parvatham vijay
parvatham vijay on 1 Nov 2019
i want to create a matrix which contains the numbers from 1 to 256, (3x3 matrix but continiously,)
3 rows and 768 columns.the matrix is a repeated matrix ,here 2nd and third column repeated
then 3rd and 4th column repeated.(1,1 1,2 represents first row ,first column element ;like wise)
1,1 1,2 1,3 1,2 1,3 1,4 1,3 1,4 1,5 ...etc
2,1 2,2 2,3 2,2 2,3 2,4 2,3 2,4 2,5 ....etc
3,1 3,2 3,3 3,2 3,3 3,4 3,3 3,4 3,5 ....etc
i tried this code but i cant get this answer
clear all
close all
a= [1:10];
for i=2:4
this is sample i have taken 1 to 10 numbers
Kindly help
  1 Comment
Rik on 1 Nov 2019
Please stop posting your comments (or questions) as answer. Also, your question is unformatted, making it difficult to understand. Please use the layout tools to make your question more readable.

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