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LBitmap::ChannelMix

#include "ltwrappr.h"

virtual L_INT LBitmap::ChannelMix(pRedFactor, pGreenFactor, pBlueFactor, uFlags = 0)

pCOLORDATA pRedFactor;	pointer to a structure
pCOLORDATA pGreenFactor;	pointer to a structure
pCOLORDATA pBlueFactor;	pointer to a structure
L_UINT32 uFlags;	flags

Redistributes the RGB values of the specified bitmap, using the values stored in the specified structures.

Parameter	Description
pRedFactor	Pointer to a COLORDATA structure that contains the values to use for redistributing the bitmap's red values.
pGreenFactor	Pointer to a COLORDATA structure that contains the values to use for redistributing the bitmap's green values.
pBlueFactor	Pointer to a COLORDATA structure that contains the values to use for redistributing the bitmap's blue values.
uFlags	Reserved for future use. Must be 0.

Returns

SUCCESS	The function was successful.
< 1	An error occurred. Refer to Return Codes.

Comments

This function is used to rebalance the colors in a bitmap. It can be used to make color adjustments and corrections.

This function supports 1-, 2-, 3-, 4-, 5-, 6-, 7-, 8-, 24- and 48-bit bitmaps and can support regions for 24- and 48-bit bitmaps. If the bitmap has a region, the effect will be applied on the region only.

This function does not support signed data images. It returns the error code ERROR_SIGNED_DATA_NOT_SUPPORTED if a signed data image is passed to this function.

This function does not support 32-bit grayscale images. It returns the error code ERROR_GRAY32_UNSUPPORTED if a 32-bit grayscale image is passed to this function.

Required DLLs and Libraries

LTIMGCLR

For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.

Platforms

Win32, x64.

Example

The following example applies the LBitmap::ChannelMix function to it:

L_INT LBitmap__ChannelMixExample(LAnimationWindow *BitmapWindow)  
{ 
 
  COLORDATA RedFact, GreenFact, BlueFact;  
  RedFact.uStructSize = sizeof(COLORDATA);  
  GreenFact.uStructSize = sizeof(COLORDATA);  
  BlueFact.uStructSize = sizeof(COLORDATA);  
  RedFact.nRedFactor = 250;  
  RedFact.nGreenFactor = 255;  
  RedFact.nBlueFactor = 222;  
  RedFact.nConstant = 0;  
  GreenFact.nRedFactor = 100;  
  GreenFact.nGreenFactor = 0;  
  GreenFact.nBlueFactor = 250;  
  GreenFact.nConstant = 0;  
  BlueFact.nRedFactor = 5;  
  BlueFact.nGreenFactor = 0;  
  BlueFact.nBlueFactor = 0;  
  BlueFact.nConstant = 0;  
    
  return BitmapWindow->ChannelMix( &RedFact, &GreenFact, &BlueFact);  
}

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Help Version 20.0.2020.4.5

LEADTOOLS Raster Imaging C++ Class Library Help

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Classes and Member Functions

Summary of Features

Functions:	LBitmap::AdjustTint. LBitmap::ColorHalfTone, LBitmap::ConvertToColoredGray, LBitmap::BalanceColors, LBitmapBase::GrayScale, LBitmap::GrayScaleExt, LBitmapBase::IsGrayScale
Topics:	Correcting Colors
	Raster Image Functions: Modifying Intensity Values
	Color Halftones and Halftone Images
	Raster Image Functions: Working with Color Halftones, Halftones, and Grayscale Images
	Raster Image Functions: Correcting Colors