i am executing this piece of code and getting the error" X=X(:,1:2:512); Index exceeds matrix dimensions." help me to solve it.

close all; clear all; load woman; X=imread('lena256.bmp'); X=double(X); X=X(:,1:2:512);

[Stephen23]

@tina jain: please stop posting identical questions:

http://de.mathworks.com/matlabcentral/answers/181286-i-am-executing-this-piece-of-code-and-getting-the-error-index-exceeds-matrix-dimensions-error-in-d

Answer 1

[Stephen23]

run this into your script/command window:

size(X)

what is the size of X ? Does it have three dimensions ? Are you trying to select an index for an array location that does not exist?

Did you understand the answer to your previous questions about array dimensions ?:

http://de.mathworks.com/matlabcentral/answers/181099-q-3-what-does-mean-in-matrix

[tina jain]

i am sorry that i troubled you. actually i am working on a project. i am a beginner thatswhy getting such kind of problems.

[Stephen23]

It is no trouble for me: I come to this forum to help people with their problems.

If you answered my questions, we could probably figure out exactly what was happening in this situation.