Matlab 連通分量處理， 二維和三維 (Matlab, Connected Component Process, 2D&3D)

Matlab 連通分量處理， 二維和三維 (Matlab, Connected Component Process, 2D&3D)

The code for your reference, which is used to remove the minor components:

function Connect_Elimi = Connection_Judge_3D(Binary_Img, reject_T)
    Connect_Elimi = Binary_Img;
    % find components
    CC = bwconncomp(Binary_Img);
    % component number
    C_number = CC.NumObjects;
    % pixel number
    numPixels = cellfun(@numel, CC.PixelIdxList);
    totalPixels_N = sum(numPixels);
    % remove minor components
    for k = 1:C_number
        cPixel_N = length( CC.PixelIdxList{k} );
        ratio = cPixel_N / totalPixels_N;
        if ratio  < reject_T
            Connect_Elimi(CC.PixelIdxList{k}) = 0;
        end
    end