www.gusucode.com > images 案例代码 matlab源码程序 > images/ComputeSuperpixelsOfInputRGBImageExample.m
%% Compute Superpixels of Input RGB Image % %% % Read image into the workspace. A = imread('kobi.png'); %% % Calculate superpixels of the image. [L,N] = superpixels(A,500); %% % Display the superpixel boundaries overlaid on the original image. figure BW = boundarymask(L); imshow(imoverlay(A,BW,'cyan'),'InitialMagnification',67) %% % Set the color of each pixel in the output image to the mean RGB color of % the superpixel region. outputImage = zeros(size(A),'like',A); idx = label2idx(L); numRows = size(A,1); numCols = size(A,2); for labelVal = 1:N redIdx = idx{labelVal}; greenIdx = idx{labelVal}+numRows*numCols; blueIdx = idx{labelVal}+2*numRows*numCols; outputImage(redIdx) = mean(A(redIdx)); outputImage(greenIdx) = mean(A(greenIdx)); outputImage(blueIdx) = mean(A(blueIdx)); end figure imshow(outputImage,'InitialMagnification',67)