How to Extract Horizontal and Vertical pixels from color images?

How to Extract Horizontal and Vertical pixels from color images?

[Rik]

It is unclear what you mean. A color image in Matlab is a m by n by c array, so each pixel is a vector.

Have a read here and here. It will greatly improve your chances of getting an answer.

Answer 1

[Sammit Jain]

I agree with Rik, the question is kind of unclear, but let's assume the following scenario.

yourImage = imread('yourfilepath.jpg');
%Assuming it's imported as an x by y by z matrix.
yourRegion = yourImage(a:b,c:d,:);

Now these a:b define the rows of your interest, and c:d define the columns, the numbering starts from 1 and goes to x and y respectively for rows and columns. From your question it seems you want a single line of pixels (either vertical or horizontal). So try this:

1. For vertical line:

yourRegion = yourImage(:,columnNo,:);

2. For horizontal line:

yourRegion = yourImage(rowNo,:,:);

Hope this helps.

[Selva Karna]

Hi ,Sammit Jain ,

yourRegion = yourImage(a:b,c:d,:); a and b what its refrence????