mlib_imageinvert(3mlib) [sunos man page]
mlib_ImageInvert(3MLIB) mediaLib Library Functions mlib_ImageInvert(3MLIB) NAME
mlib_ImageInvert - invert SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ] #include <mlib.h> mlib_status mlib_ImageInvert(mlib_image *dst, const mlib_image *src); DESCRIPTION
The mlib_ImageInvert() function performs the inversion of an image such that white becomes black, light gray becomes dark gray, and so on. It uses the following equation: dst[x][y][i] = (Gwhite + Gblack) - src[x][y][i] The values of Gwhite and Gblack for different types of images are: Image Type Gwhite Gblack Gwhite + Gblack MLIB_BYTE 255 0 255(0xFF) MLIB_SHORT 32767 -32768 -1(0xFFFF) MLIB_USHORT 65535 0 65535(0xFFFF) MLIB_INT 2147483647 -2147483648 -1(0xFFFFFFFF) Given that integer data are in the two's complement representation, mlib_ImageInvert() is the same as mlib_ImageNot(), while mlib_ImageIn- vert_Inp() is the same as mlib_ImageNot_Inp(). PARAMETERS
The function takes the following arguments: dst Pointer to destination image. src Pointer to source image. 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 |Evolving | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+ SEE ALSO
mlib_ImageInvert_Inp(3MLIB), mlib_ImageInvert_Fp(3MLIB), mlib_ImageInvert_Fp_Inp(3MLIB), attributes(5) SunOS 5.10 10 Nov 2004 mlib_ImageInvert(3MLIB)
Check Out this Related Man Page
mlib_ImageColorHSL2RGB(3MLIB) mediaLib Library Functions mlib_ImageColorHSL2RGB(3MLIB) NAME
mlib_ImageColorHSL2RGB - HSL to RGB color conversion SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ] #include <mlib.h> mlib_status mlib_ImageColorHSL2RGB(mlib_image *dst, const mlib_image *src); DESCRIPTION
The mlib_ImageColorHSL2RGB() function performs a conversion from hue/saturation/lightness to red/green/blue. The source and destination images must be three-channel images. It uses the following equations: L' = L if L <= 1/2 L' = 1 - L if L > 1/2 V = L + S*L' P = L - S*L' Q = L + S*L'*(1 - 2*fraction(H*6)) T = L - S*L'*(1 - 2*fraction(H*6)) R, G, B = V, T, P if 0 <= H < 1/6 R, G, B = Q, V, P if 1/6 <= H < 2/6 R, G, B = P, V, T if 2/6 <= H < 3/6 R, G, B = P, Q, V if 3/6 <= H < 4/6 R, G, B = T, P, V if 4/6 <= H < 5/6 R, G, B = V, P, Q if 5/6 <= H < 1 where 0 <= H < 1 and 0 <= S, L, L', V, P, Q, T, R, G, B <= 1. Assuming a pixel in the source image is (h, s, l) and its corresponding pixel in the destination image is (r, g, b), then for MLIB_BYTE images, the following applies: H = h/256 S = s/255 L = l/255 r = R*255 g = G*255 b = B*255 for MLIB_SHORT images, the following applies: H = (h + 32768)/65536 S = (s + 32768)/65535 L = (l + 32768)/65535 r = R*65535 - 32768 g = G*65535 - 32768 b = B*65535 - 32768 for MLIB_USHORT images, the following applies: H = h/65536 S = s/65535 L = l/65535 r = R*65535 g = G*65535 b = B*65535 and for MLIB_INT images, the following applies: H = (h + 2147483648)/4294967296 S = (s + 2147483648)/4294967295 L = (l + 2147483648)/4294967295 r = R*4294967295 - 2147483648 g = G*4294967295 - 2147483648 b = B*4294967295 - 2147483648 PARAMETERS
The function takes the following arguments: dst Pointer to destination image. src Pointer to source image. 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 |Evolving | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+ SEE ALSO
mlib_ImageColorHSL2RGB_Fp(3MLIB), mlib_ImageColorRGB2HSL(3MLIB), mlib_ImageColorRGB2HSL_Fp(3MLIB), attributes(5) SunOS 5.10 10 Nov 2004 mlib_ImageColorHSL2RGB(3MLIB)