Low pass 3x3 filter.
function call:
[out_img1]=vsg('LowPass',in_img1);
Arguments:
in_img1
input image, 3 channel RGB, 1 channel greyscale or binary image, or
DICOM image.
Description:
The lowpass filter is equivalent to a 3×3 convolution with a mask in
which all the coefficient are set to 1. The result is normalised by
dividing by 9.
out_img1 - an image which
has dimensions the same as the input image. The output image is the
input image after being LowPass filtered.
Example:
img = openimage('lake.jpg');
[out_img1]=vsg('LowPass',img);