colorspace.h File Reference

#include "common.h"

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Functions
static float4	matrix_dot (const float4 vector, const float4 matrix[3])
static float4	matrix_product (const float4 xyz, constant const float *const matrix)
static float3	matrix_dot_float4_rows (const float4 row0, const float4 row1, const float4 row2, const float3 xyz)
static float3	matrix_dot_float4 (const constant float4 *const matrix, const float3 xyz)
static float4	matrix_product_float4 (const float4 xyz, constant const float *const matrix)
static float4	Lab_2_LCH (float4 Lab)
static float4	LCH_2_Lab (float4 LCH)
static float4	lab_f (float4 x)
static float4	XYZ_to_Lab (float4 xyz)
static float4	lab_f_inv (float4 x)
static float4	Lab_to_XYZ (float4 Lab)
static float4	prophotorgb_to_XYZ (float4 rgb)
static float4	XYZ_to_prophotorgb (float4 XYZ)
static float4	Lab_to_prophotorgb (float4 Lab)
static float4	prophotorgb_to_Lab (float4 rgb)
static float4	RGB_2_HSL (const float4 RGB)
static float	Hue_2_RGB (float v1, float v2, float vH)
static float4	HSL_2_RGB (const float4 HSL)
static float4	RGB_2_HSV (const float4 RGB)
static float4	HSV_2_RGB (const float4 HSV)
static float4	XYZ_to_sRGB (float4 XYZ)
static float4	sRGB_to_XYZ (float4 sRGB)
static float4	XYZ_to_JzAzBz (float4 XYZ_D65)
static float4	JzAzBz_2_XYZ (const float4 JzAzBz)
static float4	JzAzBz_to_JzCzhz (float4 JzAzBz)
static float4	XYZ_to_LMS (const float4 XYZ)
static float4	LMS_to_XYZ (const float4 LMS)
static float4	gradingRGB_to_LMS (const float4 RGB)
static float4	LMS_to_gradingRGB (const float4 LMS)
static float4	LMS_to_Yrg (const float4 LMS)
static float4	Yrg_to_LMS (const float4 Yrg)
static float4	Yrg_to_Ych (const float4 Yrg)
static float4	Ych_to_Yrg (const float4 Ych)
static float4	dt_xyY_to_uvY (const float4 xyY)
static float4	dt_uvY_to_xyY (const float4 uvY)
static float4	dt_XYZ_to_xyY (const float4 XYZ)
static float4	dt_xyY_to_XYZ (const float4 xyY)
static float4	convert_XYZ_to_bradford_LMS (const float4 XYZ)
static float4	convert_bradford_LMS_to_XYZ (const float4 LMS)
static float4	convert_XYZ_to_CAT16_LMS (const float4 XYZ)
static float4	convert_CAT16_LMS_to_XYZ (const float4 LMS)
static void	bradford_adapt_D50 (float4 *lms_in, const float4 origin_illuminant, const float p, const int full)
static void	CAT16_adapt_D50 (float4 *lms_in, const float4 origin_illuminant, const float D, const int full)
static void	XYZ_adapt_D50 (float4 *lms_in, const float4 origin_illuminant)
static float4	gamut_check_Yrg (float4 Ych)
static float	Y_to_dt_UCS_L_star (const float Y)
static float	dt_UCS_L_star_to_Y (const float L_star)
static void	xyY_to_dt_UCS_UV (const float4 xyY, float UV_star_prime[2])
static float4	xyY_to_dt_UCS_JCH (const float4 xyY, const float L_white)
static float4	dt_UCS_JCH_to_xyY (const float4 JCH, const float L_white)
static float4	dt_UCS_JCH_to_HSB (const float4 JCH)
static float4	dt_UCS_HSB_to_JCH (const float4 HSB)
static float4	dt_UCS_JCH_to_HCB (const float4 JCH)
static float4	dt_UCS_HCB_to_JCH (const float4 HCB)

Function Documentation

bradford_adapt_D50()

static void bradford_adapt_D50 ( float4 *  lms_in, const float4  origin_illuminant, const float  p, const int  full  )

inlinestatic

References p.

Referenced by extract_color_checker(), loop_switch(), switch(), and WB_coeffs_to_illuminant_xy().

CAT16_adapt_D50()

static void CAT16_adapt_D50 ( float4 *  lms_in, const float4  origin_illuminant, const float  D, const int  full  )

inlinestatic

Referenced by extract_color_checker(), loop_switch(), and switch().

convert_bradford_LMS_to_XYZ()

static float4 convert_bradford_LMS_to_XYZ ( const float4  LMS )

inlinestatic

References Bradford_LMS_to_XYZ, LMS, and matrix_dot().

Referenced by loop_switch(), switch(), and WB_coeffs_to_illuminant_xy().

convert_CAT16_LMS_to_XYZ()

static float4 convert_CAT16_LMS_to_XYZ ( const float4  LMS )

inlinestatic

References CAT16_LMS_to_XYZ, LMS, and matrix_dot().

Referenced by loop_switch(), and switch().

convert_XYZ_to_bradford_LMS()

static float4 convert_XYZ_to_bradford_LMS ( const float4  XYZ )

inlinestatic

References matrix_dot(), XYZ, and XYZ_to_Bradford_LMS.

Referenced by loop_switch(), switch(), and WB_coeffs_to_illuminant_xy().

convert_XYZ_to_CAT16_LMS()

static float4 convert_XYZ_to_CAT16_LMS ( const float4  XYZ )

inlinestatic

References matrix_dot(), XYZ, and XYZ_to_CAT16_LMS.

Referenced by loop_switch(), and switch().

dt_UCS_HCB_to_JCH()

static float4 dt_UCS_HCB_to_JCH ( const float4  HCB )

inlinestatic

References HCB, and JCH.

dt_UCS_HSB_to_JCH()

static float4 dt_UCS_HSB_to_JCH ( const float4  HSB )

inlinestatic

References HSB, and JCH.

dt_UCS_JCH_to_HCB()

static float4 dt_UCS_JCH_to_HCB ( const float4  JCH )

inlinestatic

References HCB, and JCH.

dt_UCS_JCH_to_HSB()

static float4 dt_UCS_JCH_to_HSB ( const float4  JCH )

inlinestatic

References HSB, and JCH.

dt_UCS_JCH_to_xyY()

static float4 dt_UCS_JCH_to_xyY ( const float4  JCH, const float  L_white  )

inlinestatic

References c, dt_UCS_L_star_to_Y(), factors, half_values, JCH, L_star, L_white, M, offsets, U_factors, U_star_prime, UV, UV_star, V_factors, V_star_prime, xyD, and xyY.

dt_UCS_L_star_to_Y()

static float dt_UCS_L_star_to_Y ( const float  L_star )

inlinestatic

References L_star.

Referenced by dt_UCS_JCH_to_xyY().

dt_uvY_to_xyY()

static float4 dt_uvY_to_xyY ( const float4  uvY )

inlinestatic

References uvY, and xyY.

dt_xyY_to_uvY()

static float4 dt_xyY_to_uvY ( const float4  xyY )

inlinestatic

References uvY, and xyY.

dt_xyY_to_XYZ()

static float4 dt_xyY_to_XYZ ( const float4  xyY )

inlinestatic

References xyY, and XYZ.

Referenced by _create_vectorscope_image(), and _process_vectorscope().

dt_XYZ_to_xyY()

static float4 dt_XYZ_to_xyY ( const float4  XYZ )

inlinestatic

References xyY, and XYZ.

Referenced by _bin_pixels_vectorscope_in_roi(), _process_vectorscope(), commit_params(), extract_color_checker(), and get_skin_tones_range().

gamut_check_Yrg()

static float4 gamut_check_Yrg ( float4  Ych )

inlinestatic

References Ych, Ych_to_Yrg(), and Yrg.

gradingRGB_to_LMS()

static float4 gradingRGB_to_LMS ( const float4  RGB )

inlinestatic

References filmlightRGB_D65_to_LMS_D65, matrix_dot(), and RGB.

Referenced by Yrg_to_LMS().

HSL_2_RGB()

static float4 HSL_2_RGB ( const float4  HSL )

inlinestatic

References B, H, HSL, Hue_2_RGB(), L, R, and S.

HSV_2_RGB()

static float4 HSV_2_RGB ( const float4  HSV )

inlinestatic

References HSV, i, p, RGB, t, and v.

Hue_2_RGB()

static float Hue_2_RGB ( float  v1, float  v2, float  vH  )

inlinestatic

Referenced by HSL_2_RGB().

JzAzBz_2_XYZ()

static float4 JzAzBz_2_XYZ ( const float4  JzAzBz )

inlinestatic

References AI, b, c1, c2, c3, d, d0, dot(), g, IzAzBz, JzAzBz, LMS, MI, n_inv, p_inv, XYZ, and XYZ_D65.

JzAzBz_to_JzCzhz()

static float4 JzAzBz_to_JzCzhz ( float4  JzAzBz )

inlinestatic

References h, JzAzBz, JzCzhz, and M_PI_F.

Lab_2_LCH()

static float4 Lab_2_LCH ( float4  Lab )

inlinestatic

References C, H, L, Lab, and M_PI_F.

lab_f()

static float4 lab_f ( float4  x )

inlinestatic

References x.

Referenced by XYZ_to_Lab().

lab_f_inv()

static float4 lab_f_inv ( float4  x )

inlinestatic

References x.

Referenced by Lab_to_XYZ().

Lab_to_prophotorgb()

static float4 Lab_to_prophotorgb ( float4  Lab )

inlinestatic

References Lab, Lab_to_XYZ(), XYZ, and XYZ_to_prophotorgb().

Lab_to_XYZ()

static float4 Lab_to_XYZ ( float4  Lab )

inlinestatic

References d50, f, Lab, and lab_f_inv().

Referenced by Lab_to_prophotorgb().

LCH_2_Lab()

static float4 LCH_2_Lab ( float4  LCH )

inlinestatic

References a, b, L, LCH, and M_PI_F.

LMS_to_gradingRGB()

static float4 LMS_to_gradingRGB ( const float4  LMS )

inlinestatic

References LMS, LMS_D65_to_filmlightRGB_D65, and matrix_dot().

Referenced by LMS_to_Yrg().

LMS_to_XYZ()

static float4 LMS_to_XYZ ( const float4  LMS )

inlinestatic

References LMS, LMS_2006_D65_to_XYZ_D65, and matrix_dot().

LMS_to_Yrg()

static float4 LMS_to_Yrg ( const float4  LMS )

inlinestatic

References a, LMS, lms, LMS_to_gradingRGB(), and rgb.

matrix_dot()

static float4 matrix_dot ( const float4  vector, const float4  matrix[3]  )

inlinestatic

References dot(), and matrix.

Referenced by convert_bradford_LMS_to_XYZ(), convert_CAT16_LMS_to_XYZ(), convert_XYZ_to_bradford_LMS(), convert_XYZ_to_CAT16_LMS(), gradingRGB_to_LMS(), LMS_to_gradingRGB(), LMS_to_XYZ(), and XYZ_to_LMS().

matrix_dot_float4()

static float3 matrix_dot_float4 ( const constant float4 *const  matrix, const float3  xyz  )

inlinestatic

References matrix, and matrix_dot_float4_rows().

matrix_dot_float4_rows()

static float3 matrix_dot_float4_rows ( const float4  row0, const float4  row1, const float4  row2, const float3  xyz  )

inlinestatic

References dot(), row0, row1, and row2.

Referenced by matrix_dot_float4(), and matrix_product_float4().

matrix_product()

static float4 matrix_product ( const float4  xyz, constant const float *const  matrix  )

inlinestatic

References a, B, matrix, and R.

Referenced by rgb_matrix_to_xyz().

matrix_product_float4()

static float4 matrix_product_float4 ( const float4  xyz, constant const float *const  matrix  )

inlinestatic

References matrix, matrix_dot_float4_rows(), out, row0, row1, and row2.

prophotorgb_to_Lab()

static float4 prophotorgb_to_Lab ( float4  rgb )

inlinestatic

References prophotorgb_to_XYZ(), rgb, XYZ, and XYZ_to_Lab().

prophotorgb_to_XYZ()

static float4 prophotorgb_to_XYZ ( float4  rgb )

inlinestatic

References rgb, and XYZ.

Referenced by prophotorgb_to_Lab().

RGB_2_HSL()

static float4 RGB_2_HSL ( const float4  RGB )

inlinestatic

References B, H, L, R, RGB, and S.

RGB_2_HSV()

static float4 RGB_2_HSV ( const float4  RGB )

inlinestatic

References delta, HSV, and RGB.

sRGB_to_XYZ()

static float4 sRGB_to_XYZ ( float4  sRGB )

inlinestatic

References sRGB, and XYZ.

xyY_to_dt_UCS_JCH()

static float4 xyY_to_dt_UCS_JCH ( const float4  xyY, const float  L_white  )

inlinestatic

References JCH, L_star, L_white, M2, UV_star_prime, xyY, xyY_to_dt_UCS_UV(), and Y_to_dt_UCS_L_star().

xyY_to_dt_UCS_UV()

static void xyY_to_dt_UCS_UV ( const float4  xyY, float  UV_star_prime[2]  )

inlinestatic

References c, factors, half_values, offsets, UV_star, UV_star_prime, UVD, xyY, and y_factors.

Referenced by commit_params(), and xyY_to_dt_UCS_JCH().

XYZ_adapt_D50()

static void XYZ_adapt_D50 ( float4 *  lms_in, const float4  origin_illuminant  )

inlinestatic

Referenced by extract_color_checker(), loop_switch(), and switch().

XYZ_to_JzAzBz()

static float4 XYZ_to_JzAzBz ( float4  XYZ_D65 )

inlinestatic

References A, dot(), M, and XYZ_D65.

XYZ_to_Lab()

static float4 XYZ_to_Lab ( float4  xyz )

inlinestatic

References d50, and lab_f().

Referenced by prophotorgb_to_Lab().

XYZ_to_LMS()

static float4 XYZ_to_LMS ( const float4  XYZ )

inlinestatic

References matrix_dot(), XYZ, and XYZ_D65_to_LMS_2006_D65.

XYZ_to_prophotorgb()

static float4 XYZ_to_prophotorgb ( float4  XYZ )

inlinestatic

References rgb, and XYZ.

Referenced by Lab_to_prophotorgb().

XYZ_to_sRGB()

static float4 XYZ_to_sRGB ( float4  XYZ )

inlinestatic

References sRGB, and XYZ.

Y_to_dt_UCS_L_star()

static float Y_to_dt_UCS_L_star ( const float  Y )

inlinestatic

The following is darktable Uniform Color Space 2022 © Aurélien Pierre https://eng.aurelienpierre.com/2022/02/color-saturation-control-for-the-21th-century/

Use this space for color-grading in a perceptual framework. The CAM terms have been removed for performance.

Referenced by process(), and xyY_to_dt_UCS_JCH().

Ych_to_Yrg()

static float4 Ych_to_Yrg ( const float4  Ych )

inlinestatic

References c, g, h, r, and Ych.

Referenced by gamut_check_Yrg().

Yrg_to_LMS()

static float4 Yrg_to_LMS ( const float4  Yrg )

inlinestatic

References a, b, denom, g, gradingRGB_to_LMS(), lms, r, rgb, and Yrg.

Yrg_to_Ych()

static float4 Yrg_to_Ych ( const float4  Yrg )

inlinestatic

References c, g, h, r, and Yrg.