Java使用opencv提取人臉後獲得LBP圖像

結果大概是這樣:
原本的圖片如果是這樣的:

那麼提取人臉之後是這樣的:

然後計算LBP圖像是這樣的:

因爲項目中設計到服務器信息, 沒有託管代碼, 核心的LBP處理代碼如下:

    public int[] getLbpHistogram(Mat face){
        Mat lbpface = new Mat(new Size(198,198), CvType.CV_32SC3);
        int width = face.width();
        int height = face.height();
        //initialize the lbp histogram
        int[] lbpHistogram = new int[256];
        Arrays.fill(lbpHistogram,0);
        for(int i = 0; i<width; i++){
            for(int j = 0;j<height; j++){
                //boundary solution
                if(i==0||j==0||i==width-1||j==height-1){
                    lbpface.put(i,j,new int[]{0,0,0});
                    continue;
                }
                int l = 0;
                if(face.get(i-1,j-1)[0]>face.get(i, j)[0]) l+=1<<7;
                if(face.get(i-1,j)[0]>face.get(i, j)[0]) l+=1<<6;
                if(face.get(i-1,j+1)[0]>face.get(i, j)[0]) l+=1<<5;
                if(face.get(i,j+1)[0]>face.get(i, j)[0]) l+=1<<4;
                if(face.get(i+1,j+1)[0]>face.get(i, j)[0]) l+=1<<3;
                if(face.get(i+1,j)[0]>face.get(i, j)[0]) l+=1<<2;
                if(face.get(i+1,j-1)[0]>face.get(i, j)[0]) l+=1<<1;
                if(face.get(i,j-1)[0]>face.get(i, j)[0]) l+=1;
                //fill the lbp image
                lbpface.put(i, j, new int[]{l,l,l});
                //calc the lbp histogram
                lbpHistogram[l]++;
            }
        }
            Imgcodecs.imwrite("out.jpg",lbpface);
        return lbpHistogram;
    }