When inserting an image into MATLAB, how do you read the n-by-3 array for pixels?

Question

Olivia Lee 2019-6-19

关闭： MATLAB Answer Bot 2021-8-20

I have read the article on finding pixels, and I am not sure how to read the 3 by 3 array after pressing return.

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Answer 1

KALYAN ACHARJYA 2019-6-19

编辑：KALYAN ACHARJYA 2019-6-19

When Matlab read the image, it now matrix having elements value (Pixel Value) and spatial co-ordinates (x,y) that is position of rows and column.

For RGB Image having three planes R,G and B, therefor pixel values also having three values in each pixel location

(x,y) gives the spatial codinates and R,G,B gives corresponding values of that pixels

If you are interested to know the R component pixel value of 4,3 pixel position, then

red_values=image(4,3,1);
%Similarly for green.^2 and blue last digit shouls be 3
% You can also extract the complete plane

Requested to read the link for better undestanding.