(PECL imagick 2.0.0)
Imagick::quantizeImages — Analyzes the colors within a sequence of images
$numberColors
    , int $colorspace
    , int $treedepth
    , bool $dither
    , bool $measureError
   )
numberColors
     
colorspace
     
treedepth
     
dither
     
measureError
     
   成功时返回 TRUE .
  
错误时抛出 ImagickException .