stats_absolute_deviation (PECLstats>=1.0.0) stats_absolute_deviation—Returnstheabsolutedeviationofanarrayofvalues
stats_standard_deviation (PECLstats>=1.0.0) stats_standard_deviation—Returnsthestandarddeviation Description
←stats_rand_setall stats_standard_deviation→ ©1997–2017ThePHPDocumentationGroup LicensedundertheCreativeCommonsAttributionLicensev3.0orlater
Thenumberofchoosesfromtheset n Thenumberofelementsintheset ReturnValues Returnsthebinomialcoefficient ←stats_standard_deviation
←stats_absolute_deviation stats_cdf_binomial→ ©1997–2017ThePHPDocumentationGroup LicensedundertheCreativeCommonsAttributionLicensev3.0orlater
使用绝对差分公式计算损失(https://en.wikipedia.org/wiki/Deviation_(statistics%29#Unsigned_or_absolute_deviation)(也称为
参考 R330(1,2)https://en.wikipedia.org/wiki/Root-mean-square_deviation compare_psnr skimage.measure.compare_psnr