Erosion operation with a user defined NxN structuring element.
function call:
[out_img1]=vsg('ErosionNxN',in_img1,conv_arr);
Arguments:
in_img1
mask image, 3 channel RGB, 1 channel greyscale or binary image, or DICOM
image.
conv_arr
– an integer array specifying the mask with which the input image will
be eroded.
Description:
Erosion is equivalent to the shrinking of the image set A (in_img1)
by a SE B. This is a morphological transformation which combines
two sets using vector subtraction of set elements.
out_img1 – An image which has dimensions the same as the input
image. This is an image which has been eroded.
Example:
img = openimage('crown.jpg');
[out_img1]= vsg('Threshold',img,100);
array = ones(5,5);
[out_img2]=vsg('ErosionNxN',out_img1,array);
[out_img3]=vsg('ErosionNxN',img,array);
h=figure;image(uint8(out_img2));set(h,'Name','Erosion -
binary image');
Notes:
1. For DICOM images, the function operates on all slices separately.
2. For RGB images, the function operates on all colour planes
separately.