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octave: Image Processing

 
 32 Image Processing
 *******************
 
 Since an image is basically a matrix, Octave is a very powerful
 environment for processing and analyzing images.  To illustrate how easy
 it is to do image processing in Octave, the following example will load
 an image, smooth it by a 5-by-5 averaging filter, and compute the
 gradient of the smoothed image.
 
      I = imread ("myimage.jpg");
      S = conv2 (I, ones (5, 5) / 25, "same");
      [Dx, Dy] = gradient (S);
 
 In this example ‘S’ contains the smoothed image, and ‘Dx’ and ‘Dy’
 contains the partial spatial derivatives of the image.
 

Menu

 
· Loading and Saving Images
· Displaying Images
· Representing Images
· Plotting on top of Images
· Color Conversion
 

Info Catalog octave: Signal Processing octave: Top octave: Audio Processing