Channel Property

Summary

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

Syntax

Java

Objective-C

WinRT C#

C++

public RasterColorChannel Channel { get; set; }

Public Property Channel As Leadtools.Imageprocessing.RasterColorChannel

public Leadtools.Imageprocessing.RasterColorChannel Channel {get; set;}

@property (nonatomic, assign) LTRasterColorChannel channel

public RasterColorChannel getChannel() 
public void setChannel(RasterColorChannel value)

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

public: 
property Leadtools.Imageprocessing.RasterColorChannel Channel { 
   Leadtools.Imageprocessing.RasterColorChannel get(); 
   void set (    Leadtools.Imageprocessing.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