processbg.asv

来自「使用matlab实现手写阿拉伯数字的识别。」· ASV 代码 · 共 92 行

function result = processBG(image)
[m n] = size(image);
result = zeros(m,n);


[x y] = find(image == 0);


for i = 1 : length(x)
    for k = 1 : max([m n]);
        x1 = x(i)-k;
        y1 = y(i)-k;
        if x1 > 0 && y1 > 0 && image(x1, y1) == 1
            result(x(i), y(i)) = result(x(i), y(i)) + 1;
          
            break;
        end;
    end;
    
    for k = 1 : max([m n]);
        x2 = x(i)-k;
        y2 = y(i);
        if x2 > 0  && image(x2, y2) == 1
            result(x(i), y(i)) = result(x(i), y(i)) + 1;
          
            break;
        end;
    end;
    
    for k = 1 : max([m n]);
        x3 = x(i)-k;
        y3 = y(i)+k;
        if x3 > 0  && y3 <= n && image(x3, y3) == 1
            result(x(i), y(i)) = result(x(i), y(i)) + 1;
          
            break;
        end;
    end;
    
    for k = 1 : max([m n]);
        x4 = x(i);
        y4 = y(i)-k;
        if y4 > 0 && image(x4, y4) == 1
           result(x(i), y(i)) = result(x(i), y(i)) + 1;
           break;
        end;
     end;
    
     for k = 1 : max([m n]);
        x5 = x(i);
        y5 = y(i)+k;
        if y5 <= n  && image(x5, y5) == 1
             result(x(i), y(i)) = result(x(i), y(i)) + 1;
             break;
        end;
     end;
    
    for k = 1 : max([m n]);
        x6 = x(i)+k;
        y6 = y(i)-k;
        if x6 <= m && y6 > 0 && image(x6, y6) == 1
             result(x(i), y(i)) = result(x(i), y(i)) + 1;
          
             break;
        end;
    end;
   
    for k = 1 : max([m n]);
        x7 = x(i)+k;
        y7 = y(i);
        if x7 <= m  && image(x7, y7) == 1
             result(x(i), y(i)) = result(x(i), y(i)) + 1;
          
             break;
        end;
    end;
    
    for k = 1 : max([m n]);
        x8 = x(i)+k;
        y8 = y(i)+k;
        if x8 <= m  && y8 <= n && image(x8, y8) == 1
             result(x(i), y(i)) = result(x(i), y(i)) + 1;
           
             break;
        end;
    end;
end;

ind = find(result == 5 || result == 6 || result == 7);
result1()