public Gmagick Gmagick::setimagetype    ( int $imgType   )

Gmagick::setimagetypeSets the image type

imgType

The image type: UndefinedType, BilevelType, GrayscaleType, GrayscaleMatteType, PaletteType, PaletteMatteType, TrueColorType, TrueColorMatteType, ColorSeparationType, ColorSeparationMatteType, or OptimizeType.