How to Extract Horizontal and Vertical pixels from color images?

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Selva Karna
Selva Karna 2017-12-27
评论： Selva Karna 2017-12-30
How to Extract Horizontal and Vertical pixels from color images?
  1 个评论
Rik
Rik 2017-12-27
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.

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Sammit Jain
Sammit Jain 2017-12-27
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.

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