sectorization of hexagonal algorithms in matlab

To perform sectorization of hexagonal algorithms in Matlab, you can follow these steps:

  1. Read the image in Matlab using imread function.
main.m
img = imread('input_image.jpg'); % Replace input_image.jpg with your image name and path
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  1. Convert the RGB image to grayscale using rgb2gray function.
main.m
gray_img = rgb2gray(img);
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  1. Apply edge detection on the grayscale image using edge function.
main.m
edge_img = edge(gray_img, 'canny'); % You can use other edge detection methods as per your requirements
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  1. Perform hough transform on the edge image to detect the hexagonal shapes using hough function.
main.m
[H,theta,rho] = hough(edge_img,'Theta',-60:1:60);
peaks = houghpeaks(H,5);
lines = houghlines(edge_img,theta,rho,peaks,'FillGap',5,'MinLength',7);
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  1. Create a blank binary mask image with same size as the input image and fill the detected hexagonal shapes with white color.
main.m
mask = zeros(size(edge_img));
for k = 1:length(lines)
   xy = [lines(k).point1; lines(k).point2];
   idx = sub2ind(size(mask), xy(:,2), xy(:,1));
   mask(idx) = 1;
end
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  1. Apply morphological operations like dilation and erosion on the binary mask image to segment the hexagonal shapes into sectors.
main.m
se = strel('disk', 10); % You can use other structuring elements as per your requirements
dilated_img = imdilate(mask, se);
eroded_img = imerode(mask, se);
sectorized_img = dilated_img - eroded_img;
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  1. Visualize the sectorized image using imshow function.
main.m
imshow(sectorized_img);
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I hope this helps you in sectorization of hexagonal algorithms in Matlab.

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