191 lines
5.4 KiB
C
191 lines
5.4 KiB
C
/* Definitions for VIPS colour package.
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*
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* J.Cupitt, 8/4/93
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* 15/7/96 JC
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* - C++ stuff added
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* 20/2/98 JC
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* - new display calibration added
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* 26/9/05
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* - added IM_ prefix to colour temps
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*/
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/*
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This file is part of VIPS.
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VIPS is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/*
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These files are distributed with VIPS - http://www.vips.ecs.soton.ac.uk
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*/
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#ifndef IM_COLOUR_H
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#define IM_COLOUR_H
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#ifdef __cplusplus
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extern "C" {
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#endif /*__cplusplus*/
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/* Areas under curves for Dxx. 2 degree observer.
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*/
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#define IM_D93_X0 (89.7400)
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#define IM_D93_Y0 (100.0)
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#define IM_D93_Z0 (130.7700)
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#define IM_D75_X0 (94.9682)
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#define IM_D75_Y0 (100.0)
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#define IM_D75_Z0 (122.5710)
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/* D65 temp 6504.
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*/
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#define IM_D65_X0 (95.0470)
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#define IM_D65_Y0 (100.0)
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#define IM_D65_Z0 (108.8827)
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#define IM_D55_X0 (95.6831)
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#define IM_D55_Y0 (100.0)
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#define IM_D55_Z0 (92.0871)
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#define IM_D50_X0 (96.4250)
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#define IM_D50_Y0 (100.0)
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#define IM_D50_Z0 (82.4680)
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/* A temp 2856k.
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*/
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#define IM_A_X0 (109.8503)
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#define IM_A_Y0 (100.0)
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#define IM_A_Z0 (35.5849)
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/* B temp 4874k.
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*/
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#define IM_B_X0 (99.0720)
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#define IM_B_Y0 (100.0)
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#define IM_B_Z0 (85.2230)
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/* C temp 6774k.
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*/
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#define IM_C_X0 (98.0700)
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#define IM_C_Y0 (100.0)
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#define IM_C_Z0 (118.2300)
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#define IM_E_X0 (100.0)
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#define IM_E_Y0 (100.0)
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#define IM_E_Z0 (100.0)
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#define IM_D3250_X0 (105.6590)
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#define IM_D3250_Y0 (100.0)
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#define IM_D3250_Z0 (45.8501)
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/* Colour loading and conversion functions.
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*/
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void im_col_ab2Ch( float a, float b, float *C, float *h );
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void im_col_Ch2ab( float C, float h, float *a, float *b );
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void im_col_XYZ2Lab( float X, float Y, float Z, float *L, float *a, float *b );
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void im_col_Lab2XYZ( float L, float a, float b, float *X, float *Y, float *Z );
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float im_col_pythagoras( float L1, float a1, float b1,
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float L2, float a2, float b2 );
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void im_col_make_tables_UCS( void );
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float im_col_L2Lucs( float L );
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float im_col_Lucs2L( float Lucs );
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float im_col_C2Cucs( float C );
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float im_col_Cucs2C( float Cucs );
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float im_col_Ch2hucs( float C, float h );
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float im_col_Chucs2h( float C, float hucs );
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double im_col_ab2h( double a, double b );
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float im_col_dECMC(
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float L1, float a1, float b1, float L2, float a2, float b2 );
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float im_col_dE00(
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float L1, float a1, float b1, float L2, float a2, float b2 );
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int im_Lab2LCh( IMAGE *in, IMAGE *out );
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int im_LCh2Lab( IMAGE *in, IMAGE *out );
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int im_LabQ2XYZ( IMAGE *in, IMAGE *out );
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int im_rad2float( IMAGE *in, IMAGE *out );
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int im_float2rad( IMAGE *in, IMAGE *out );
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int im_LCh2UCS( IMAGE *in, IMAGE *out );
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int im_Lab2LCh( IMAGE *in, IMAGE *out );
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int im_Lab2LabQ( IMAGE *in, IMAGE *out );
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int im_Lab2LabS( IMAGE *in, IMAGE *out );
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int im_Lab2XYZ( IMAGE *in, IMAGE *out );
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int im_Lab2XYZ_temp( IMAGE *in, IMAGE *out, double X0, double Y0, double Z0 );
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int im_Lab2UCS( IMAGE *in, IMAGE *out );
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int im_LabQ2Lab( IMAGE *in, IMAGE *out );
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int im_LabQ2LabS( IMAGE *in, IMAGE *out );
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int im_LabS2LabQ( IMAGE *in, IMAGE *out );
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int im_LabS2Lab( IMAGE *in, IMAGE *out );
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int im_UCS2XYZ( IMAGE *in, IMAGE *out );
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int im_UCS2LCh( IMAGE *in, IMAGE *out );
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int im_UCS2Lab( IMAGE *in, IMAGE *out );
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int im_XYZ2Lab( IMAGE *in, IMAGE *out );
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int im_XYZ2Lab_temp( IMAGE *in, IMAGE *out, double X0, double Y0, double Z0 );
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int im_XYZ2UCS( IMAGE *in, IMAGE *out );
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int im_sRGB2XYZ( IMAGE *in, IMAGE *out );
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int im_XYZ2sRGB( IMAGE *in, IMAGE *out );
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int im_Yxy2XYZ( IMAGE *in, IMAGE *out );
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int im_XYZ2Yxy( IMAGE *in, IMAGE *out );
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int im_dECMC_fromLab( IMAGE *in1, IMAGE *in2, IMAGE *out );
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int im_dE00_fromLab( IMAGE *in1, IMAGE *in2, IMAGE *out );
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int im_dE_fromXYZ( IMAGE *in1, IMAGE *in2, IMAGE *out );
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int im_dE_fromLab( IMAGE *in1, IMAGE *in2, IMAGE *out );
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int im_dE_fromXYZ( IMAGE *, IMAGE *, IMAGE * );
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int im_dE_fromLab( IMAGE *, IMAGE *, IMAGE * );
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int im_lab_morph( IMAGE *in, IMAGE *out,
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DOUBLEMASK *mask,
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double L_offset, double L_scale,
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double a_scale, double b_scale );
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void im_col_make_tables_UCS( void );
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int im_lab_morph( IMAGE *in, IMAGE *out,
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DOUBLEMASK *mask,
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double L_offset, double L_scale,
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double a_scale, double b_scale );
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/* Render intents for icc wrappers.
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*/
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typedef enum {
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IM_INTENT_PERCEPTUAL = 0,
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IM_INTENT_RELATIVE_COLORIMETRIC,
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IM_INTENT_SATURATION,
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IM_INTENT_ABSOLUTE_COLORIMETRIC
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} VipsIntent;
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int im_icc_present( void );
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int im_icc_transform( IMAGE *in, IMAGE *out,
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const char *input_profile_filename,
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const char *output_profile_filename,
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VipsIntent intent );
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int im_icc_import( IMAGE *in, IMAGE *out,
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const char *input_profile_filename, VipsIntent intent );
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int im_icc_import_embedded( IMAGE *in, IMAGE *out, VipsIntent intent );
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int im_icc_export_depth( IMAGE *in, IMAGE *out, int depth,
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const char *output_profile_filename, VipsIntent intent );
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int im_icc_ac2rc( IMAGE *in, IMAGE *out, const char *profile_filename );
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#ifdef __cplusplus
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}
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#endif /*__cplusplus*/
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#endif /*IM_COLOUR_H*/
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