局部量化码直方图用于纹理分类

本文针对纹理分类提出了一种有效的本地运算符，即LocalQuantizationCode（LQC）。 Theconventionallocalbinarypatterncanberegardedasaspeciallocalquanti-.zation methodwithtwolevels，0and1.SomevariantsoftheLBPdemonstratethatincreasingthelocal.quantizationlevelcanenhancethelocaldiscriminativecapability.Hence，wepresentasimpleand.unified frameworktovalidatetheperformanceofdifferentlocalquantizationlevels.IntheproposedLQC，.pixelslocatedindifferentquantizationlevelsareseparatelycountedandtheaveragelocalgrayvalue.difference isadoptedtosetaseriesofquantizationthresholds.Extensiveexperimentsarecarriedouton.severalchallengingtexturedatabases.TheexperimentalresultsdemonstratetheLQCwithappropriate.local quantizationlevelcaneffectivelycharacterizethelocalgray-leveldistribution。