Community Profile

photo

divya pandiaraj


Active since 2016

Followers: 0   Following: 0

Statistics

Feeds

View by

Question


I reshaped the image elements into 16*1 column vector using the following code. There is 16 vectors in variable (tv). Now i need to retrieve the first vector of variable (tv). ie, i need tv(1), tv(2)... tv(16)Please say the code.
for i=1:4:16 for j=1:4:16 block=I(i:i+3,j:j+3); disp(block) %convert 4X4 into...

8 years ago | 0 answers | 0

0

answers

Question


I have 256*256 image. I had converted into 4*4 blocks. Now I have 64 blocks. And also I had converted each 4X4 into 16X1 linear array. Now I have 256 linear arrays, each have 16*1. I want to calculate mean value of first 8 arrays, then next 8 array
I=imread('cameraman.tif'); I=double(I); Im=size(I); %find the size of the image [nr nc nd]=size(I); % Divide in...

8 years ago | 1 answer | 0

1

answer

Question


I have 256*256 image. I had converted into 4*4 blocks. Now I have 64*64 blocks. And also I had converted each 4X4 into 16X1 column vector. Now I have 256 arrays, each have 16*1. I want to calculate mean value of first 8 arrays, then next 8 arrays,.
I=imread('cameraman.tif'); I=double(I); Im=size(I); %find the size of the image [nr nc nd]=size(I); % Divide into blocks d...

8 years ago | 0 answers | 0

0

answers

Question


Dividing image into blocks and calculating mean values
i have 256*256 image. i've converted into 4*4 blocks and also converted into 16*1 linear array. now i need code to calculate mea...

8 years ago | 2 answers | 0

2

answers

Answered
i have 256*256 image. i've converted into 4*4 blocks and also converted into 16*1 linear array. now i need code to calculate mean value of 1 to 8 rows, then 9 to 16 rows,... like this.. please send suitable code. i am using the code given below.
Thank u sir for ur reply. but while i am using your code i have an error like, Error in ==> rev6 at 4 B=sepblockfun(I,[4,2],'me...

8 years ago | 0