1. K. Pearson, ‘‘Mathematical contributions to the theory of evolution. III. Regression, heredity, and panmixia,’’ Phil. Trans. R. Soc. London, Ser. A 187, 253–318 (1896).
2. W. Panichkitkosolkul, ‘‘Improved confidence intervals for a coefficient of variation of a normal distribution,’’ Thai. Stat. 7, 193–199 (2009).
3. M. G. Vangel, ‘‘Confidence intervals for a normal coefficient of variation,’’ Am. Stat. 50, 21–26 (1996).
4. T. Acharya and A. K. Ray, Image Processing: Principles and Applications (Wiley, Hoboken, 2005).
5. C. G. Rafael and E. W. Richard, Digital Image Processing (Prentice Hall, Upper Saddle River, 2008).