WPF：图像处理（五）迭代法(2)

            Int32 T0 = (MinGrayLevel + MaxGrayLevel) >> 1; 
            if (MinGrayLevel != MaxGrayLevel) 
            { 
                for (Int32 Iteration = 0; Iteration < 100; Iteration++) 
                {   // 计算目标的质量矩和点数 
                    Int32 U0 = 0; 
                    Int32 C0 = 0; 
                    for (Int32 i = MinGrayLevel; i <= T0; i++) 
                    {   // 目标的质量矩和点数                 
                        U0 += i * Histogram[i]; 
                        C0 += Histogram[i]; 
                    } 
 
                    // 目标的平均灰度值和背景的平均灰度值的中心值 
                    Int32 T1 = (U0 / C0 + (SumU - U0) / (SumC - C0)) >> 1; 
                    if (T0 == T1) break; else T0 = T1; 
                } 
            } 
 
            // 返回最佳阈值 
            return T0; 
        }         
    } 
} 



作者 秦建辉