Discover MakerZone

MATLAB and Simulink resources for Arduino, LEGO, and Raspberry Pi

Learn more

Discover what MATLAB® can do for your career.

Opportunities for recent engineering grads.

Apply Today

New to MATLAB?

Copy pixels from one Matrix to other matrix

Asked by M@lik Ali

M@lik Ali (view profile)

on 26 Jul 2012

Hi all I have an image of size 256x384x3 then i divide the image into 4x4 blocks as

bs=4;
alp=0;
ca = mat2cell(rgbImage,bs*ones(1,size(rgbImage,1)/bs),bs*ones(1,size(rgbImage,2)/bs),3;
plotIndex = 1;
after that i generate a zero matrix of the image size and divide into blocks as
a=zeros(size(rgbImage));
aa = mat2cell(a,bs*ones(1,size(a,1)/bs),bs*ones(1,size(a,2)/bs),3);
plotIndex = 1;

Now What i want is to copy the few block from original image to the block of matrix a

I tried this

aa{37,88}=ca{37,88}

but fail. after copy blocks i want to reconstruct the a matrix. please help me how i can copy the selected block of original image into the block of the new matrix and then reconstruct the a which was my zero matrix

or if there is an other way that how i can copy the block of the original image into zero image.

thanks in Advance.

0 Comments

M@lik Ali

M@lik Ali (view profile)

Tags

Products

No products are associated with this question.

1 Answer

Answer by Andrei Bobrov

Andrei Bobrov (view profile)

on 26 Jul 2012
Edited by Andrei Bobrov

Andrei Bobrov (view profile)

on 26 Jul 2012
Accepted answer

EDIT (block with size 64x64)

rgbImage = imread('861.jpg');
bs=64;
ca = mat2cell(rgbImage,bs*ones(1,size(rgbImage,1)/bs),bs*ones(1,size(rgbImage,2)/bs),3);
plotIndex = 1;
a=zeros(size(rgbImage),class(rgbImage));
aa = mat2cell(a,bs*ones(1,size(a,1)/bs),bs*ones(1,size(a,2)/bs),3);
aa(2,3)=ca(2,3);
amtx = cell2mat(aa);
imshow(amtx)

12 Comments

M@lik Ali

M@lik Ali (view profile)

on 26 Jul 2012

You received the image

Andrei Bobrov

Andrei Bobrov (view profile)

on 26 Jul 2012

answer was correct (see EDIT)

M@lik Ali

M@lik Ali (view profile)

on 27 Jul 2012

Thanks its work fine now..

Andrei Bobrov

Andrei Bobrov (view profile)

Contact us