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Channel Property

Summary

Gets or sets the channel for which to get the information.

Syntax
C#
VB
Objective-C
C++
Java
public RasterColorChannel Channel { get; set; } 
Public Property Channel As RasterColorChannel 
@property (nonatomic, assign) LTRasterColorChannel channel 
public RasterColorChannel getChannel() 
public void setChannel(RasterColorChannel value) 
public: 
property RasterColorChannel Channel { 
   RasterColorChannel get(); 
   void set (    RasterColorChannel ); 
} 

Property Value

The channel for which to get the information. This value is ignored if the image is 12 or 16-bit grayscale.

Remarks

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)) 

Example

Refer to StatisticsInformationCommand example.

Requirements

Target Platforms

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Leadtools.ImageProcessing.Effects Assembly