Channel Property (HistogramCommand)

public HistogramCommandFlags Channel {get; set;}

'Declaration
 

Public Property Channel As HistogramCommandFlags

'Usage
 

Dim instance As HistogramCommand
Dim value As HistogramCommandFlags
 
instance.Channel = value
 
value = instance.Channel

public HistogramCommandFlags Channel {get; set;}

@property (nonatomic, assign) LTHistogramCommandFlags channel

public int getChannel()
public void setChannel(int value)
             

 <br/>get_Channel();<br/>set_Channel(value);<br/>Object.defineProperty('Channel'); 

public:
property HistogramCommandFlags Channel {
   HistogramCommandFlags get();
   void set (    HistogramCommandFlags value);
}

Property Value

In order to speed up widely used image processing filters in LEADTOOLS, the grayscale value (master channel) of a colored image is calculated using the following formulas:

             #define CalcGrayValue(r, g, b) ((L_UCHAR)(((L_UCHAR) (((2 * (L_UINT) (r)) + (5 * (L_UINT) (g)) + (L_UINT) (b) + 4) / 8))))
             #define CalcGrayValue16(r, g, b) ((L_UINT16) (((2 * (L_UINT32) (r)) + (5 * (L_UINT32) (g)) + (L_UINT32) (b) + 4) / 8))
             #define CalcGrayValue32(r, g, b) ((L_UINT32) (((2 * (L_UINT32) (r)) + (5 * (L_UINT32) (g)) + (L_UINT32) (b) + 4) / 8))
             

Target Platforms

Reference

HistogramCommand Class
HistogramCommand Members