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.

Question

tina jain 2015-3-4

评论： Stephen23 2015-3-4

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

Stephen23 2015-3-4

@tina jain: please stop posting identical questions:

Answer 1

Stephen23 2015-3-4

编辑：Stephen23 2015-3-4

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 ?:

tina jain 2015-3-4

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 2015-3-4

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.