mlib_videocolorjfifycck2cmyk444(3mlib) [opensolaris man page]
mlib_VideoColorJFIFYCCK2CMYK444(3MLIB) mediaLib Library Functions mlib_VideoColorJFIFYCCK2CMYK444(3MLIB) NAME
mlib_VideoColorJFIFYCCK2CMYK444 - JFIF YCbCr to CMYK color conversion SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ] #include <mlib.h> mlib_status mlib_VideoColorJFIFYCCK2CMYK444(mlib_u8 *cmyk, const mlib_u8 *y, const mlib_u8 *cb, const mlib_u8 *cr, const mlib_u8 *k, mlib_s32 n); DESCRIPTION
The mlib_VideoColorJFIFYCCK2CMYK444() function performs color space conversion from YCbCrK to CMYK when used in the JPEG File Interchange Format (JFIF). The following equation is used: R = Y + 1.40200 * (Cr - 128) G = Y - 0.34414 * (Cb - 128) - 0.71414 * (Cr - 128) B = Y + 1.77200 * (Cb - 128) C = (255 - R) M = (255 - G) Y = (255 - B) K = K PARAMETERS
The function takes the following arguments: cmyk Pointer to destination CMYK multi-component row. cmyk must be 8-byte aligned. y Pointer to source Y component row. y must be 8-byte aligned. cb Pointer to source Cb component row. cb must be 8-byte aligned. cr Pointer to source Cr component row. cr must be 8-byte aligned. k Pointer to source K component row. k must be 8-byte aligned. n Length of Y, Cb, Cr, and K component rows. The length of the CMYK multi-component row must be 4*n. RETURN VALUES
The function returns MLIB_SUCCESS if successful. Otherwise it returns MLIB_FAILURE. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Committed | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+ SEE ALSO
mlib_VideoColorCMYK2JFIFYCCK444(3MLIB), attributes(5) SunOS 5.11 23 May 2007 mlib_VideoColorJFIFYCCK2CMYK444(3MLIB)
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mlib_VideoColorBGR2JFIFYCC444(3MLIB) mediaLib Library Functions mlib_VideoColorBGR2JFIFYCC444(3MLIB) NAME
mlib_VideoColorBGR2JFIFYCC444 - BGR to JFIF YCbCr color conversion SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ] #include <mlib.h> mlib_status mlib_VideoColorBGR2JFIFYCC444(mlib_u8 *y, mlib_u8 *cb, mlib_u8 *cr, const mlib_u8 *bgr, mlib_s32 n); DESCRIPTION
The mlib_VideoColorBGR2JFIFYCC444() function performs color space conversion from BGR to YCbCr when used in the JPEG File Interchange For- mat (JFIF). The following equation is used: Y = 0.29900 * R + 0.58700 * G + 0.11400 * B Cb = -0.16874 * R - 0.33126 * G + 0.50000 * B + 128 Cr = 0.50000 * R - 0.41869 * G - 0.08131 * B + 128 PARAMETERS
The function takes the following arguments: y Pointer to destination Y component row. y must be 8-byte aligned. cb Pointer to destination Cb component row. cb must be 8-byte aligned. cr Pointer to destination Cr component row. cr must be 8-byte aligned. bgr Pointer to source BGR multi-component row. bgr must be 8-byte aligned. n Length of Y component row. The length of Cb and Cr component rows must be n. The length of the BGR multi-component row must be 3*n. RETURN VALUES
The function returns MLIB_SUCCESS if successful. Otherwise it returns MLIB_FAILURE. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Committed | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+ SEE ALSO
mlib_VideoColorBGR2JFIFYCC420(3MLIB), mlib_VideoColorBGR2JFIFYCC422(3MLIB), mlib_VideoColorBGR2JFIFYCC444_S16(3MLIB), attributes(5) SunOS 5.11 23 May 2007 mlib_VideoColorBGR2JFIFYCC444(3MLIB)