diff options
| author | Carl Hetherington <cth@carlh.net> | 2025-05-05 02:11:32 +0200 |
|---|---|---|
| committer | Carl Hetherington <cth@carlh.net> | 2025-10-14 20:50:53 +0200 |
| commit | fbe4e1ca774fce6608de7ab910b0e346453682b2 (patch) | |
| tree | 0a88e595e45007db5fb219dad4b07deb7ddf310d /src | |
| parent | 2e9e778462a86e9c35e1758eb95cced4ddd5468d (diff) | |
Add scale parameter to make_inverse_gamma_lut().
Diffstat (limited to 'src')
| -rw-r--r-- | src/colour_conversion.cc | 6 | ||||
| -rw-r--r-- | src/colour_conversion.h | 2 |
2 files changed, 4 insertions, 4 deletions
diff --git a/src/colour_conversion.cc b/src/colour_conversion.cc index 8a3c8bff..5e3da078 100644 --- a/src/colour_conversion.cc +++ b/src/colour_conversion.cc @@ -545,10 +545,10 @@ dcp::combined_rgb_to_xyz(ColourConversion const & conversion, double* matrix) PiecewiseLUT2 -dcp::make_inverse_gamma_lut(shared_ptr<const TransferFunction> fn) +dcp::make_inverse_gamma_lut(shared_ptr<const TransferFunction> fn, int scale) { /* The parameters here were chosen by trial and error to reduce errors when running rgb_xyz_lut_test */ - return PiecewiseLUT2(fn, 0.062, 16, 12, true, 4095); + return PiecewiseLUT2(fn, 0.062, 16, 12, true, scale); } @@ -573,7 +573,7 @@ rgb_to_xyz_internal( } d; auto lut_in = conversion.in()->double_lut(0, 1, 12, false); - auto lut_out = make_inverse_gamma_lut(conversion.out_j2k()); + auto lut_out = make_inverse_gamma_lut(conversion.out_j2k(), 4095); /* This is is the product of the RGB to XYZ matrix, the Bradford transform and the DCI companding */ double fast_matrix[9]; diff --git a/src/colour_conversion.h b/src/colour_conversion.h index 3c39b45a..ea470e22 100644 --- a/src/colour_conversion.h +++ b/src/colour_conversion.h @@ -245,7 +245,7 @@ extern void xyz_to_rgb( ); -extern PiecewiseLUT2 make_inverse_gamma_lut(std::shared_ptr<const TransferFunction> fn); +extern PiecewiseLUT2 make_inverse_gamma_lut(std::shared_ptr<const TransferFunction> fn, int scale); /** @param rgb RGB data; packed RGB 16:16:16, 48bpp, 16R, 16G, 16B, |