mlib_videocolorcmyk2jfifycck444(3mlib) [opensolaris man page]
mlib_VideoColorCMYK2JFIFYCCK444(3MLIB) mediaLib Library Functions mlib_VideoColorCMYK2JFIFYCCK444(3MLIB) NAME
mlib_VideoColorCMYK2JFIFYCCK444 - CMYK to JFIF YCbCr color conversion SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ] #include <mlib.h> mlib_status mlib_VideoColorCMYK2JFIFYCCK444(mlib_u8 *y, mlib_u8 *cb, mlib_u8 *cr, mlib_u8 *k, const mlib_u8 *cmyk, mlib_s32 n); DESCRIPTION
The mlib_VideoColorCMYK2JFIFYCCK444() function performs color space conversion from CMYK to YCbCrK when used in the JPEG File Interchange Format (JFIF). The following equation is used: R = (255 - C) G = (255 - M) B = (255 - Y) 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 K = K 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. k Pointer to destination K component row. k must be 8-byte aligned. cmyk Pointer to source CMYK multi-component row. cmyk 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_VideoColorJFIFYCCK2CMYK444(3MLIB), attributes(5) SunOS 5.11 23 May 2007 mlib_VideoColorCMYK2JFIFYCCK444(3MLIB)
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mlib_VideoColorRGB2JFIFYCC444_S16(3MLIB) mediaLib Library Functions mlib_VideoColorRGB2JFIFYCC444_S16(3MLIB) NAME
mlib_VideoColorRGB2JFIFYCC444_S16 - RGB to JFIF YCbCr color conversion SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ] #include <mlib.h> mlib_status mlib_VideoColorRGB2JFIFYCC444_S16(mlib_s16 *y, mlib_s16 *cb, mlib_s16 *cr, const mlib_s16 *rgb, mlib_s32 n); DESCRIPTION
The mlib_VideoColorRGB2JFIFYCC444_S16() function performs color space conversion from RGB to YCbCr when used in the JPEG File Interchange Format (JFIF). Both the input RGB components and the output YCbCr components are supposed to be in the range of [0, 4095]. 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 + 2048 Cr = 0.50000 * R - 0.41869 * G - 0.08131 * B + 2048 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. rgb Pointer to source RGB multi-component row. rgb 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 RGB 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_VideoColorABGR2JFIFYCC444(3MLIB), mlib_VideoColorARGB2JFIFYCC444(3MLIB), mlib_VideoColorRGB2JFIFYCC444(3MLIB), attributes(5) SunOS 5.11 23 May 2007 mlib_VideoColorRGB2JFIFYCC444_S16(3MLIB)