matlab code

clear

clc

d1=120; d2=94;

I =imread('C:\Users\SAMA CENTER\Desktop\girl.jpg');

J = imresize(I,[200 250]);

X = rgb2gray(I);

Y=X';

for k1=1:d1

for k2=1:d2

B(2*k1,k2)=X(k1, k2);

B(2*k1-1,k2)=floor((X(k1,k2)+X(2*k1-1,k2))/2);

end

end

imshow(B);

What's wrong with this code?? there is some wrong with the floor function what is it ???

[Chandra Kurniawan]

Please show me the error message!

[noor]

??? Attempted to access X(213,1); index out of bounds because size(X)=[212,320].

Error in ==> floor at 12

B(2*k1-1,k2)=floor((X(k1,k2)+X(2*k1-1,k2))/2);

Answer 1

[Chandra Kurniawan]

The error message sounds you accessed X(213,1) while the size of X is 212x320

X is a gray image generated from command : X = rgb2gray(I);

so, the original image I has 212x320 dimension.

[noor]

so what can i do ??

[Chandra Kurniawan]

You wrote the code d1=120 and also wrote B(2*k1,k2)

So, ideally the image must have minimum 2*120 x 94 dimension.

You can resize the image.

J = imresize(I,[240 94]);

Then followed with :

X = rgb2gray(J);

Answer 2

[777]

your code has x(2*k1-1) ,so when the value of k1=120 you reach a value which is out of bounds for x.