The method of minimum interclass variance needs to compute conic statistic in segmenting image, which costs a large computation but has less efficiency.
最小类内方差法分割图像时需要计算二次统计量，运算量大，效率不高。
2
Supposed the functional model is correct, the influence on the statistic of test for uniform variance with incorrect stochastic model is analyzed in detail and its formula is derived.