Imagick::sepiaToneImage(PECL imagick 2.0.0) Imagick::sepiaToneImage — Sepia tones an image Описание
   bool Imagick::sepiaToneImage
    ( float $threshold
   ) 
  Applies a special effect to the image, similar to the effect achieved in a photo darkroom by sepia toning. Threshold ranges from 0 to QuantumRange and is a measure of the extent of the sepia toning. A threshold of 80 is a good starting point for a reasonable tone. Список параметров
 
 Возвращаемые значенияВ случае успешной работы возвращает TRUE. ОшибкиВызывает ImagickException при ошибке.  | 
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