Enumeration GrayscaleTransformationMode

GrayscaleTransformationMode specifies the method employed to transform images in grayscale.

• Objective-C
• Swift

typedef NS_ENUM(NSInteger, DSGrayscaleTransformationMode)
{
   /** Skips grayscale transformation. */
   DSGrayscaleTransformationModeSkip     = 0,
   /** Transforms to the inverted grayscale for further reference. This value is recommended for light on dark images. */
   DSGrayscaleTransformationModeInverted = 1 << 0,
   /** Keeps the original grayscale for further reference. This value is recommended for dark on light images. */
   DSGrayscaleTransformationModeOriginal = 1 << 1,
   /**Lets the library choose an algorithm automatically for grayscale transformation.*/
   DSGrayscaleTransformationModeAuto     = 1 << 2,
   /** Placeholder value with no functional meaning. */
   DSGrayscaleTransformationModeEnd      = -1,
   /** Reserved setting for grayscale transformation mode. */
   DSGrayscaleTransformationModeRev      = NSIntegerMin
};

public enum GrayscaleTransformationMode : Int
{
   /** Skips grayscale transformation. */
   case skip     = 0
   /** Transforms to the inverted grayscale for further reference. This value is recommended for light on dark images. */
   case inverted = 1 << 0
   /** Keeps the original grayscale for further reference. This value is recommended for dark on light images. */
   case original = 1 << 1
   /**Lets the library choose an algorithm automatically for grayscale transformation.*/
   case auto     = 1 << 2
   /** Placeholder value with no functional meaning. */
   case end      = -1
   /** Reserved setting for grayscale transformation mode. */
   case rev      = Int.min
}