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LEADTOOLS Color Conversion C++ Class Library Help

LColor::ConvertDirectToBitmap

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#include "ltwrappr.h"

static L_INT LColor::ConvertDirectToBitmap(nSrcFormat, nDstFormat, pSrcBuf, pBitmap, uStructSize, nWidth, nHeight, nInAlign, nOutAlign);

L_INT nSrcFormat;

/* format of the input data */

L_INT nDstFormat;

/* format of the output data */

L_UCHAR * pSrcBuf;

/* pointer to the input buffer */

LBitmapBase * pBitmap;

/* pointer to LBitmapBase class object */

L_UINT uStructSize;

/* size in bytes, of pBitmap */

L_INT nWidth;

/* width of pixels to be processed */

L_INT nHeight;

/* height of pixels to be processed */

L_INT nInAlign;

/* each scanline in the input buffer is a multiple of nInAlign bytes */

L_INT nOutAlign;

/* each scanline in the output buffer is a multiple of nOutAlign bytes */

Converts image data in a buffer from one color conversion model to RGB\BGR directly using built in algorithms, and sets the converted data in a LBitmapBase class object.

Parameter

Description

nSrcFormat

Format of the source data. Possible values are:

 

Value

Meaning

 

CCS_RGB

[0x00] Color conversion is RGB.

 

CCS_YUV

[0x01] Color conversion is YUV.

 

CCS_CMYK

[0x02] Color conversion is CMYK.

 

CCS_HSV

[0x03] Color conversion is HSV.

 

CCS_HLS

[0x04] Color conversion is HLS.

 

CCS_YIQ

[0x05] Color conversion is YIQ.

 

CCS_CMY

[0x06] Color conversion is CMY.

 

CCS_LAB

[0x07] Color conversion is CIELAB.

 

CCS_XYZ

[0x08] Color conversion is CIEXYZ.

 

CCS_YCCK

[0x0B] Color conversion is YCCK.

 

CCS_BGR

[0x0C] Color conversion is BGR.

 

CCS_UYVY

[0x0E] Color conversion is UYVY.

 

CCS_YUY2

[0x09] Color conversion is YUY2.

 

CCS_YVU9

[0x0A] Color conversion is YVU9.

 

CCS_YCC

[0x0F] Color conversion is YCC.

 

CCS_IHS

[0x80] Color conversion is IHS.

 

CCS_Y41P

[0x0D] Color conversion is Y41P.

 

CCS_ARGB4

[0x90] Color conversion is ARGB4.

nDstFormat

Format of the output data. Possible values are:

 

Value

Meaning

 

CCS_RGB

[0x00] Color conversion is RGB.

 

CCS_BGR

[0x0C] Color conversion is BGR.

pSrcBuf

Pointer to the buffer that references the input data.

pBitmap

Pointer to LBitmapBase class object that references the converted data.

uStructSize

Size in bytes, of the structure pointed to by pBitmap, for versioning. Use sizeof(BITMAPHANDLE).

nWidth

Width of pixels to be processed.

nHeight

Height of pixels to be processed.

nInAlign

Each scanline in the input buffer is a multiple of nInAlign bytes.

nOutAlign

Each scanline in the output buffer is a multiple of nOutAlign bytes.

Returns

SUCCESS

The function was successful.

< 1

An error occurred. Refer to Return Codes.

Comments

This function works only for conversion to BGR or RGB color space formats.

Required DLLs and Libraries

LTCLR

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

See Also

Functions:

LColor::Convert, Class Members

Topics:

Working with Color Conversion Functions

 

Raster Image Functions: Color Conversion

Example

L_VOID Fast_Convert_CMYKToRGB(L_UCHAR *pInput, LBitmapBase *pBitmap, L_INT nWidth, L_INT nHeight) 
{
   L_INT nRet = 0 ; 
   /* direct conversion using built in options */
   nRet = LColor::ConvertDirectToBitmap(CCS_CMYK, /* input color conversion */
                                          CCS_RGB, /*output color conversion */
                                          pInput, /*input buffer*/
                                          pBitmap, /*output bitmap*/
                                          sizeof(BITMAPHANDLE), 
                                          nWidth, /*pixels width*/
                                          nHeight, /*pixels height*/
                                          0, /* 0 bytes align*/
                                          0); /*0 bytes align*/
}

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