diff options
Diffstat (limited to 'icc/icc.h')
| -rw-r--r-- | icc/icc.h | 429 |
1 files changed, 284 insertions, 145 deletions
@@ -8,7 +8,7 @@ * Date: 1999/11/29 * Version: 2.15 * - * Copyright 1997 - 2012 Graeme W. Gill + * Copyright 1997 - 2013 Graeme W. Gill * * This material is licensed with an "MIT" free use license:- * see the License.txt file in this directory for licensing details. @@ -30,8 +30,8 @@ /* Version of icclib release */ -#define ICCLIB_VERSION 0x020016 -#define ICCLIB_VERSION_STR "2.16" +#define ICCLIB_VERSION 0x020017 +#define ICCLIB_VERSION_STR "2.17" #undef ENABLE_V4 /* V4 is not fully implemented */ @@ -778,8 +778,20 @@ struct _icmLut { /* inspace' -> outspace' transfer function */ double *clutmin, double *clutmax, /* Maximum range of outspace' values */ /* (NULL = default) */ - void (*outfunc)(void *cbntx, double *out, double *in)); + void (*outfunc)(void *cbntx, double *out, double *in), /* Output transfer function, outspace'->outspace (NULL = deflt) */ + int *apxls_gmin, int *apxls_gmax /* If not NULL, the grid indexes not to be affected */ + /* by ICM_CLUT_SET_APXLS, defaulting to 0..>clutPoints-1 */ + ); + + /* Helper function to fine tune a single value interpolation */ + /* Return 0 on success, 1 if input clipping occured, 2 if output clipping occured */ + /* To guarantee the optimal function, an icmLuLut needs to be create. */ + /* The default will be to assume simplex interpolation will be used. */ + int (*tune_value) ( + struct _icmLut *p, /* Pointer to Lut object */ + double *out, /* Target value */ + double *in); /* Input value */ }; typedef struct _icmLut icmLut; @@ -792,27 +804,29 @@ struct _icmLut { /* If ICM_CLUT_SET_FILTER is set, the per grid node filtering radius */ /* is returned in clutfunc out[-1], out[-2] etc for each table */ int icmSetMultiLutTables( - int ntables, /* Number of tables to be set, 1..n */ - struct _icmLut **p, /* Pointer to Lut object */ - int flags, /* Setting flags */ - void *cbctx, /* Opaque callback context pointer value */ - icColorSpaceSignature insig, /* Input color space */ - icColorSpaceSignature outsig, /* Output color space */ + int ntables, /* Number of tables to be set, 1..n */ + struct _icmLut **p, /* Pointer to Lut object */ + int flags, /* Setting flags */ + void *cbctx, /* Opaque callback context pointer value */ + icColorSpaceSignature insig, /* Input color space */ + icColorSpaceSignature outsig, /* Output color space */ void (*infunc)(void *cbctx, double *out, double *in), /* Input transfer function, inspace->inspace' (NULL = default) */ /* Will be called ntables times each input grid value */ - double *inmin, double *inmax, /* Maximum range of inspace' values */ - /* (NULL = default) */ + double *inmin, double *inmax, /* Maximum range of inspace' values */ + /* (NULL = default) */ void (*clutfunc)(void *cbntx, double *out, double *in), /* inspace' -> outspace[ntables]' transfer function */ /* will be called once for each input' grid value, and */ /* ntables output values should be written consecutively */ /* to out[]. */ - double *clutmin, double *clutmax, /* Maximum range of outspace' values */ - /* (NULL = default) */ - void (*outfunc)(void *cbntx, double *out, double *in) + double *clutmin, double *clutmax, /* Maximum range of outspace' values */ + /* (NULL = default) */ + void (*outfunc)(void *cbntx, double *out, double *in), /* Output transfer function, outspace'->outspace (NULL = deflt) */ /* Will be called ntables times on each output value */ + int *apxls_gmin, int *apxls_gmax /* If not NULL, the grid indexes not to be affected */ + /* by ICM_CLUT_SET_APXLS, defaulting to 0..>clutPoints-1 */ ); /* - - - - - - - - - - - - - - - - - - - - - */ @@ -1487,6 +1501,8 @@ struct _icc { int errc; /* Error code */ int warnc; /* Warning code */ + int allowclutPoints256; /* Non standard - allow 256 res cLUT */ + /* Private: ? */ icmAlloc *al; /* Heap allocator */ int del_al; /* NZ if heap allocator should be deleted */ @@ -1652,135 +1668,9 @@ extern ICCLIB_API unsigned int icmCSSig2nchan(icColorSpaceSignature sig); /* 1 if it is a colorant based colorspace, and 2 if it is not a colorant based space */ extern ICCLIB_API unsigned int icmCSSig2chanNames( icColorSpaceSignature sig, char *cvals[]); - -/* Simple macro to transfer an array to an XYZ number */ -#define icmAry2XYZ(xyz, ary) ((xyz).X = (ary)[0], (xyz).Y = (ary)[1], (xyz).Z = (ary)[2]) - -/* And the reverse */ -#define icmXYZ2Ary(ary, xyz) ((ary)[0] = (xyz).X, (ary)[1] = (xyz).Y, (ary)[2] = (xyz).Z) - -/* Simple macro to transfer an XYZ number to an XYZ number */ -#define icmXYZ2XYZ(d_xyz, s_xyz) ((d_xyz).X = (s_xyz).X, (d_xyz).Y = (s_xyz).Y, \ - (d_xyz).Z = (s_xyz).Z) - -/* Simple macro to transfer an 3array to 3array */ -/* Hmm. Same as icmCpy3 */ -#define icmAry2Ary(d_ary, s_ary) ((d_ary)[0] = (s_ary)[0], (d_ary)[1] = (s_ary)[1], \ - (d_ary)[2] = (s_ary)[2]) - -/* CIE Y (range 0 .. 1) to perceptual CIE 1976 L* (range 0 .. 100) */ -double icmY2L(double val); - -/* Perceptual CIE 1976 L* (range 0 .. 100) to CIE Y (range 0 .. 1) */ -double icmL2Y(double val); - -/* CIE XYZ to perceptual Lab */ -extern ICCLIB_API void icmXYZ2Lab(icmXYZNumber *w, double *out, double *in); - -/* Perceptual Lab to CIE XYZ */ -extern ICCLIB_API void icmLab2XYZ(icmXYZNumber *w, double *out, double *in); - -/* LCh to Lab */ -extern ICCLIB_API void icmLCh2Lab(double *out, double *in); - -/* Lab to LCh */ -extern ICCLIB_API void icmLab2LCh(double *out, double *in); - -/* XYZ to Yxy */ -extern ICCLIB_API void icmXYZ2Yxy(double *out, double *in); - -/* Yxy to XYZ */ -extern ICCLIB_API void icmYxy2XYZ(double *out, double *in); - -/* CIE XYZ to perceptual Luv */ -extern ICCLIB_API void icmXYZ2Luv(icmXYZNumber *w, double *out, double *in); - -/* Perceptual Luv to CIE XYZ */ -extern ICCLIB_API void icmLuv2XYZ(icmXYZNumber *w, double *out, double *in); - - -/* NOTE :- none of the following seven have been protected */ -/* against arithmmetic issues (ie. for black) */ - -/* CIE XYZ to perceptual CIE 1976 UCS diagram Yu'v'*/ -/* (Yu'v' is a better chromaticity space than Yxy) */ -extern ICCLIB_API void icmXYZ21976UCS(double *out, double *in); - -/* Perceptual CIE 1976 UCS diagram Yu'v' to CIE XYZ */ -extern ICCLIB_API void icm1976UCS2XYZ(double *out, double *in); - -/* CIE XYZ to perceptual CIE 1960 UCS */ -/* (This was obsoleted by the 1976UCS, but is still used */ -/* in computing color temperatures.) */ -extern ICCLIB_API void icmXYZ21960UCS(double *out, double *in); - -/* Perceptual CIE 1960 UCS to CIE XYZ */ -extern ICCLIB_API void icm1960UCS2XYZ(double *out, double *in); - -/* CIE XYZ to perceptual CIE 1964 WUV (U*V*W*) */ -/* (This is obsolete but still used in computing CRI) */ -extern ICCLIB_API void icmXYZ21964WUV(icmXYZNumber *w, double *out, double *in); - -/* Perceptual CIE 1964 WUV (U*V*W*) to CIE XYZ */ -extern ICCLIB_API void icm1964WUV2XYZ(icmXYZNumber *w, double *out, double *in); - -/* CIE CIE1960 UCS to perceptual CIE 1964 WUV (U*V*W*) */ -extern ICCLIB_API void icm1960UCS21964WUV(icmXYZNumber *w, double *out, double *in); - - -/* The standard D50 illuminant value */ -extern icmXYZNumber icmD50; -extern icmXYZNumber icmD50_100; /* Scaled to 100 */ -double icmD50_ary3[3]; /* As an array */ -double icmD50_100_ary3[3]; /* Scaled to 100 as an array */ - -/* The standard D65 illuminant value */ -extern icmXYZNumber icmD65; -extern icmXYZNumber icmD65_100; /* Scaled to 100 */ -double icmD65_ary3[3]; /* As an array */ -double icmD65_100_ary3[3]; /* Scaled to 100 as an array */ - -/* The default black value */ -extern icmXYZNumber icmBlack; - - -/* Initialise a pseudo-hilbert grid counter, return total usable count. */ -extern ICCLIB_API unsigned psh_init(psh *p, int di, unsigned int res, int co[]); - -/* Reset the counter */ -extern ICCLIB_API void psh_reset(psh *p); - -/* Increment pseudo-hilbert coordinates */ -/* Return non-zero if count rolls over to 0 */ -extern ICCLIB_API int psh_inc(psh *p, int co[]); - - -/* RGB primaries to device to RGB->XYZ transform matrix */ -/* Return non-zero if matrix would be singular */ -int icmRGBprim2matrix( - icmXYZNumber white, /* White point */ - icmXYZNumber red, /* Red colorant */ - icmXYZNumber green, /* Green colorant */ - icmXYZNumber blue, /* Blue colorant */ - double mat[3][3] /* Destination matrix */ -); - -/* Chromatic Adaption transform utility */ -/* Return a 3x3 chromatic adaption matrix */ -/* Use icmMulBy3x3(dst, mat, src) */ - -#define ICM_CAM_BRADFORD 0x0001 /* Use Bradford sharpened response space */ -#define ICM_CAM_MULMATRIX 0x0002 /* Transform the given matrix */ - -void icmChromAdaptMatrix( - int flags, /* Flags as defined below */ - icmXYZNumber d_wp, /* Destination white point */ - icmXYZNumber s_wp, /* Source white point */ - double mat[3][3] /* Destination matrix */ -); - /* - - - - - - - - - - - - - - */ -/* Set a 3 vector */ + +/* Set a 3 vector to the same value */ #define icmSet3(d_ary, s_val) ((d_ary)[0] = (s_val), (d_ary)[1] = (s_val), \ (d_ary)[2] = (s_val)) @@ -1801,6 +1691,16 @@ void icmSub3(double out[3], double in1[3], double in2[3]); #define ICMSUB3(o, i, j) ((o)[0] = (i)[0] - (j)[0], (o)[1] = (i)[1] - (j)[1], (o)[2] = (i)[2] - (j)[2]) +/* Divide two 3 vectors, out = in1/in2 */ +void icmDiv3(double out[3], double in1[3], double in2[3]); + +#define ICMDIV3(o, i, j) ((o)[0] = (i)[0]/(j)[0], (o)[1] = (i)[1]/(j)[1], (o)[2] = (i)[2]/(j)[2]) + +/* Multiply two 3 vectors, out = in1 * in2 */ +void icmMul3(double out[3], double in1[3], double in2[3]); + +#define ICMMUL3(o, i, j) ((o)[0] = (i)[0] * (j)[0], (o)[1] = (i)[1] * (j)[1], (o)[2] = (i)[2] * (j)[2]) + /* Compute the dot product of two 3 vectors */ double icmDot3(double in1[3], double in2[3]); @@ -1822,10 +1722,13 @@ double icmNorm3(double in[3]); /* Scale a 3 vector by the given ratio */ void icmScale3(double out[3], double in[3], double rat); +#define ICMSCALE3(o, i, j) ((o)[0] = (i)[0] * (j), (o)[1] = (i)[1] * (j), (o)[2] = (i)[2] * (j)) + /* Compute a blend between in0 and in1 */ void icmBlend3(double out[3], double in0[3], double in1[3], double bf); -#define ICMSCALE3(o, i, j) ((o)[0] = (i)[0] * (j), (o)[1] = (i)[1] * (j), (o)[2] = (i)[2] * (j)) +/* Clip a vector to the range 0.0 .. 1.0 */ +void icmClip3(double out[3], double in[3]); /* Normalise a 3 vector to the given length. Return nz if not normalisable */ int icmNormalize3(double out[3], double in[3], double len); @@ -1922,9 +1825,128 @@ double icmPlaneDist3(double eq[4], double p[3]); /* - - - - - - - - - - - - - - - - - - - - - - - */ +/* Given 2 2D points, compute a plane equation. */ +/* The normal will be right handed given the order of the points */ +/* The plane equation will be the 2 normal components and the constant. */ +/* Return nz if any points are cooincident or co-linear */ +int icmPlaneEqn2(double eq[3], double p0[2], double p1[2]); + +/* Given a 2D point and a plane equation, return the signed */ +/* distance from the plane */ +double icmPlaneDist2(double eq[3], double p[2]); + +/* Given two infinite 2D lines define by two pairs of points, compute the intersection. */ +/* Return nz if there is no intersection (lines are parallel) */ +int icmLineIntersect2(double res[2], double p1[2], double p2[2], double p3[2], double p4[2]); + /* Multiply 2 array by 2x2 transform matrix */ void icmMulBy2x2(double out[2], double mat[2][2], double in[2]); +/* - - - - - - - - - - - - - - */ + +/* Simple macro to transfer an array to an XYZ number */ +#define icmAry2XYZ(xyz, ary) ((xyz).X = (ary)[0], (xyz).Y = (ary)[1], (xyz).Z = (ary)[2]) + +/* And the reverse */ +#define icmXYZ2Ary(ary, xyz) ((ary)[0] = (xyz).X, (ary)[1] = (xyz).Y, (ary)[2] = (xyz).Z) + +/* Simple macro to transfer an XYZ number to an XYZ number */ +#define icmXYZ2XYZ(d_xyz, s_xyz) ((d_xyz).X = (s_xyz).X, (d_xyz).Y = (s_xyz).Y, \ + (d_xyz).Z = (s_xyz).Z) + +/* Simple macro to transfer an 3array to 3array */ +/* Hmm. Same as icmCpy3 */ +#define icmAry2Ary(d_ary, s_ary) ((d_ary)[0] = (s_ary)[0], (d_ary)[1] = (s_ary)[1], \ + (d_ary)[2] = (s_ary)[2]) + +/* CIE Y (range 0 .. 1) to perceptual CIE 1976 L* (range 0 .. 100) */ +double icmY2L(double val); + +/* Perceptual CIE 1976 L* (range 0 .. 100) to CIE Y (range 0 .. 1) */ +double icmL2Y(double val); + +/* CIE XYZ to perceptual Lab */ +extern ICCLIB_API void icmXYZ2Lab(icmXYZNumber *w, double *out, double *in); + +/* Perceptual Lab to CIE XYZ */ +extern ICCLIB_API void icmLab2XYZ(icmXYZNumber *w, double *out, double *in); + +/* LCh to Lab */ +extern ICCLIB_API void icmLCh2Lab(double *out, double *in); + +/* Lab to LCh */ +extern ICCLIB_API void icmLab2LCh(double *out, double *in); + +/* XYZ to Yxy */ +extern ICCLIB_API void icmXYZ2Yxy(double *out, double *in); + +/* Yxy to XYZ */ +extern ICCLIB_API void icmYxy2XYZ(double *out, double *in); + +/* CIE XYZ to perceptual Luv */ +extern ICCLIB_API void icmXYZ2Luv(icmXYZNumber *w, double *out, double *in); + +/* Perceptual Luv to CIE XYZ */ +extern ICCLIB_API void icmLuv2XYZ(icmXYZNumber *w, double *out, double *in); + + +/* CIE XYZ to perceptual CIE 1976 UCS diagram Yu'v'*/ +/* (Yu'v' is a better chromaticity space than Yxy) */ +extern ICCLIB_API void icmXYZ21976UCS(double *out, double *in); + +/* Perceptual CIE 1976 UCS diagram Yu'v' to CIE XYZ */ +extern ICCLIB_API void icm1976UCS2XYZ(double *out, double *in); + + +/* CIE XYZ to perceptual CIE 1960 UCS */ +/* (This was obsoleted by the 1976UCS, but is still used */ +/* in computing color temperatures.) */ +extern ICCLIB_API void icmXYZ21960UCS(double *out, double *in); + +/* Perceptual CIE 1960 UCS to CIE XYZ */ +extern ICCLIB_API void icm1960UCS2XYZ(double *out, double *in); + + +/* CIE XYZ to perceptual CIE 1964 WUV (U*V*W*) */ +/* (This is obsolete but still used in computing CRI) */ +extern ICCLIB_API void icmXYZ21964WUV(icmXYZNumber *w, double *out, double *in); + +/* Perceptual CIE 1964 WUV (U*V*W*) to CIE XYZ */ +extern ICCLIB_API void icm1964WUV2XYZ(icmXYZNumber *w, double *out, double *in); + +/* CIE CIE1960 UCS to perceptual CIE 1964 WUV (U*V*W*) */ +extern ICCLIB_API void icm1960UCS21964WUV(icmXYZNumber *w, double *out, double *in); + + +/* NOTE :- that these values are for the 1931 standard observer */ + +/* The standard D50 illuminant value */ +extern icmXYZNumber icmD50; +extern icmXYZNumber icmD50_100; /* Scaled to 100 */ +extern double icmD50_ary3[3]; /* As an array */ +extern double icmD50_100_ary3[3]; /* Scaled to 100 as an array */ + +/* The standard D65 illuminant value */ +extern icmXYZNumber icmD65; +extern icmXYZNumber icmD65_100; /* Scaled to 100 */ +extern double icmD65_ary3[3]; /* As an array */ +extern double icmD65_100_ary3[3]; /* Scaled to 100 as an array */ + + +/* The default black value */ +extern icmXYZNumber icmBlack; + + +/* Initialise a pseudo-hilbert grid counter, return total usable count. */ +extern ICCLIB_API unsigned psh_init(psh *p, int di, unsigned int res, int co[]); + +/* Reset the counter */ +extern ICCLIB_API void psh_reset(psh *p); + +/* Increment pseudo-hilbert coordinates */ +/* Return non-zero if count rolls over to 0 */ +extern ICCLIB_API int psh_inc(psh *p, int co[]); + /* - - - - - - - - - - - - - - - - - - - - - - - */ /* Return the normal Delta E given two Lab values */ @@ -1956,6 +1978,7 @@ extern ICCLIB_API double icmCIE2Ksq(double *in0, double *in1); /* Return the CIEDE2000 Delta E color difference measure for two XYZ values */ extern ICCLIB_API double icmXYZCIE2K(icmXYZNumber *w, double *in0, double *in1); + /* - - - - - - - - - - - - - - - - - - - - - - - */ /* Clip Lab, while maintaining hue angle. */ /* Return nz if clipping occured */ @@ -1966,6 +1989,122 @@ int icmClipLab(double out[3], double in[3]); int icmClipXYZ(double out[3], double in[3]); /* - - - - - - - - - - - - - - - - - - - - - - - */ + +/* RGB primaries to device to RGB->XYZ transform matrix */ +/* Return non-zero if matrix would be singular */ +int icmRGBprim2matrix( + icmXYZNumber white, /* White point */ + icmXYZNumber red, /* Red colorant */ + icmXYZNumber green, /* Green colorant */ + icmXYZNumber blue, /* Blue colorant */ + double mat[3][3] /* Destination matrix[RGB[XYZ] */ +); + +/* Chromatic Adaption transform utility */ +/* Return a 3x3 chromatic adaption matrix */ +/* Use icmMulBy3x3(dst, mat, src) */ + +#define ICM_CAM_BRADFORD 0x0001 /* Use Bradford sharpened response space */ +#define ICM_CAM_MULMATRIX 0x0002 /* Transform the given matrix */ + /* NOTE that to transform primaries they */ + /* must be mat[XYZ][RGB] format! */ + +void icmChromAdaptMatrix( + int flags, /* Flags as defined below */ + icmXYZNumber d_wp, /* Destination white point */ + icmXYZNumber s_wp, /* Source white point */ + double mat[3][3] /* Destination matrix */ +); + +/* Pre-round RGB device primary values to ensure that */ +/* the sum of the quantized primaries is the same as */ +/* the quantized sum. */ +void quantizeRGBprimsS15Fixed16( + double mat[3][3] /* matrix[RGB][XYZ] */ +); + +/* - - - - - - - - - - - - - - */ +/* Video functions */ + +/* Convert Lut table index/value to YCbCr */ +void icmLut2YCbCr(double *out, double *in); + +/* Convert YCbCr to Lut table index/value */ +void icmYCbCr2Lut(double *out, double *in); + + +/* Convert Rec601 RGB' into YPbPr, (== "full range YCbCr") */ +/* where input 0..1, output 0..1, -0.5 .. 0.5, -0.5 .. 0.5 */ +void icmRec601_RGBd_2_YPbPr(double out[3], double in[3]); + +/* Convert Rec601 YPbPr to RGB' (== "full range YCbCr") */ +/* where input 0..1, -0.5 .. 0.5, -0.5 .. 0.5, output 0.0 .. 1 */ +void icmRec601_YPbPr_2_RGBd(double out[3], double in[3]); + + +/* Convert Rec709 1150/60/2:1 RGB' into YPbPr, or "full range YCbCr" */ +/* where input 0..1, output 0..1, -0.5 .. 0.5, -0.5 .. 0.5 */ +void icmRec709_RGBd_2_YPbPr(double out[3], double in[3]); + +/* Convert Rec709 1150/60/2:1 YPbPr to RGB' (== "full range YCbCr") */ +/* where input 0..1, -0.5 .. 0.5, -0.5 .. 0.5, output 0.0 .. 1 */ +void icmRec709_YPbPr_2_RGBd(double out[3], double in[3]); + +/* Convert Rec709 1250/50/2:1 RGB' into YPbPr, or "full range YCbCr" */ +/* where input 0..1, output 0..1, -0.5 .. 0.5, -0.5 .. 0.5 */ +void icmRec709_50_RGBd_2_YPbPr(double out[3], double in[3]); + +/* Convert Rec709 1250/50/2:1 YPbPr to RGB' (== "full range YCbCr") */ +/* where input 0..1, -0.5 .. 0.5, -0.5 .. 0.5, output 0.0 .. 1 */ +void icmRec709_50_YPbPr_2_RGBd(double out[3], double in[3]); + + +/* Convert Rec2020 RGB' into Non-constant liminance YPbPr, or "full range YCbCr" */ +/* where input 0..1, output 0..1, -0.5 .. 0.5, -0.5 .. 0.5 */ +void icmRec2020_NCL_RGBd_2_YPbPr(double out[3], double in[3]); + +/* Convert Rec2020 Non-constant liminance YPbPr into RGB' (== "full range YCbCr") */ +/* where input 0..1, -0.5 .. 0.5, -0.5 .. 0.5, output 0.0 .. 1 */ +void icmRec2020_NCL_YPbPr_2_RGBd(double out[3], double in[3]); + +/* Convert Rec2020 RGB' into Constant liminance YPbPr, or "full range YCbCr" */ +/* where input 0..1, output 0..1, -0.5 .. 0.5, -0.5 .. 0.5 */ +void icmRec2020_CL_RGBd_2_YPbPr(double out[3], double in[3]); + +/* Convert Rec2020 Constant liminance YPbPr into RGB' (== "full range YCbCr") */ +/* where input 0..1, -0.5 .. 0.5, -0.5 .. 0.5, output 0.0 .. 1 */ +void icmRec2020_CL_YPbPr_2_RGBd(double out[3], double in[3]); + + +/* Convert Rec601/709/2020 YPbPr to YCbCr range. */ +/* input 0..1, -0.5 .. 0.5, -0.5 .. 0.5, */ +/* output 16/255 .. 235/255, 16/255 .. 240/255, 16/255 .. 240/255 */ +void icmRecXXX_YPbPr_2_YCbCr(double out[3], double in[3]); + +/* Convert Rec601/709/2020 YCbCr to YPbPr range. */ +/* input 16/255 .. 235/255, 16/255 .. 240/255, 16/255 .. 240/255 */ +/* output 0..1, -0.5 .. 0.5, -0.5 .. 0.5, */ +void icmRecXXX_YCbCr_2_YPbPr(double out[3], double in[3]); + + +/* Convert full range RGB to Video range 16..235 RGB */ +void icmRGB_2_VidRGB(double out[3], double in[3]); + +/* Convert Video range 16..235 RGB to full range RGB */ +void icmVidRGB_2_RGB(double out[3], double in[3]); + +/* ---------------------------------------------------------- */ +/* PS 3.14-2009, Digital Imaging and Communications in Medicine */ +/* (DICOM) Part 14: Grayscale Standard Display Function */ + +/* JND index value 1..1023 to L 0.05 .. 3993.404 cd/m^2 */ +double icmDICOM_fwd(double jnd); + +/* L 0.05 .. 3993.404 cd/m^2 to JND index value 1..1023 */ +double icmDICOM_bwd(double L); + + +/* ---------------------------------------------------------- */ /* Print an int vector to a string. */ /* Returned static buffer is re-used every 5 calls. */ char *icmPiv(int di, int *p); @@ -1981,8 +2120,8 @@ char *icmPfv(int di, float *p); /* Print an 0..1 range XYZ as a D50 Lab string */ /* Returned static buffer is re-used every 5 calls. */ char *icmPLab(double *p); +/* - - - - - - - - - - - - - - - - - - - - - - - */ -/* ---------------------------------------------------------- */ #ifdef __cplusplus } |