PR: Add TLCI-2012 and TLMF-2013 quality metrics

BIBLIOGRAPHY.bib

@@ -199,6 +199,16 @@ @inproceedings{Barten2003
   keywords = {contrast sensitivity,csf,human eye,orientation angle,standard observer,surround luminance}
 }
 
+@techreport{BBCResearchDepartment1988,
+  title = {The Assessment of the Colorimetric Properties of Light Sources for Use in Television Scene Lighting},
+  author = {Taylor, E. W.},
+  year = 1988,
+  institution = {BBC Research Department},
+  number = {BBC R\&D Report 1988/2},
+  urldate = {2026-06-04},
+  howpublished = {http://downloads.bbc.co.uk/rd/pubs/reports/1988-02.pdf}
+}
+
 @article{Bianco2010a,
   title = {Two New von {{Kries}} Based Chromatic Adaptation Transforms Found by Numerical Optimization},
   author = {Bianco, S. and Schettini, R.},
@@ -997,6 +1007,16 @@ @misc{EuropeanBroadcastingUnion1975
   month = aug
 }
 
+@techreport{EuropeanBroadcastingUnion2017,
+  title = {Method for the Assessment of the Colorimetric Properties of Luminaires: The {{Television Lighting Consistency Index}} ({{TLCI-2012}}) and the {{Television Luminaire Matching Factor}} ({{TLMF-2013}})},
+  author = {Prokopczuk, Joanna and Roe, Trevor},
+  year = 2017,
+  institution = {European Broadcasting Union},
+  number = {Tech 3355},
+  urldate = {2026-06-04},
+  howpublished = {https://tech.ebu.ch/publications/tech3355}
+}
+
 @misc{EuropeanColorInitiative2002a,
   title = {{{ECI RGB}} V2},
   author = {{European Color Initiative}},

colour/__init__.py

@@ -455,10 +455,14 @@
     COLOUR_FIDELITY_INDEX_METHODS,
     COLOUR_QUALITY_SCALE_METHODS,
     COLOUR_RENDERING_INDEX_METHODS,
+    TLCI2012_Specification,
+    TLMF2013_Specification,
     colour_fidelity_index,
     colour_quality_scale,
     colour_rendering_index,
     spectral_similarity_index,
+    television_lighting_consistency_index,
+    television_luminaire_matching_factor,
 )
 from .recovery import XYZ_TO_MSDS_METHODS, XYZ_TO_SD_METHODS, XYZ_to_msds, XYZ_to_sd
 from .temperature import (
@@ -885,10 +889,14 @@
     "COLOUR_FIDELITY_INDEX_METHODS",
     "COLOUR_QUALITY_SCALE_METHODS",
     "COLOUR_RENDERING_INDEX_METHODS",
+    "TLCI2012_Specification",
+    "TLMF2013_Specification",
     "colour_fidelity_index",
     "colour_quality_scale",
     "colour_rendering_index",
     "spectral_similarity_index",
+    "television_lighting_consistency_index",
+    "television_luminaire_matching_factor",
 ]
 __all__ += [
     "XYZ_TO_MSDS_METHODS",

colour/examples/quality/examples_tlci.py

@@ -0,0 +1,18 @@
+"""
+Demonstrate *Television Lighting Consistency Index* (TLCI-2012) computations.
+"""
+
+import colour
+from colour.utilities import message_box
+
+message_box("Television Lighting Consistency Index (TLCI-2012) Computations")
+
+message_box('Computing TLCI-2012 for "FL2".')
+print(colour.television_lighting_consistency_index(colour.SDS_ILLUMINANTS["FL2"]))
+
+message_box("Fetching TLCI-2012 additional data.")
+spec = colour.television_lighting_consistency_index(
+    colour.SDS_ILLUMINANTS["FL2"],
+    additional_data=True,
+)
+print(spec)

colour/examples/quality/examples_tlmf.py

@@ -0,0 +1,23 @@
+"""
+Demonstrate *Television Luminaire Matching Factor* (TLMF-2013) computations.
+"""
+
+import colour
+from colour.utilities import message_box
+
+message_box("Television Luminaire Matching Factor (TLMF-2013) Computations")
+
+message_box('Computing TLMF-2013 for "FL2" vs "D65".')
+print(
+    colour.television_luminaire_matching_factor(
+        colour.SDS_ILLUMINANTS["FL2"], colour.SDS_ILLUMINANTS["D65"]
+    )
+)
+
+message_box("Fetching TLMF-2013 additional data.")
+spec = colour.television_luminaire_matching_factor(
+    colour.SDS_ILLUMINANTS["FL2"],
+    colour.SDS_ILLUMINANTS["D65"],
+    additional_data=True,
+)
+print(spec)

colour/quality/__init__.py

@@ -25,6 +25,12 @@
 )
 from .datasets import *  # noqa: F403
 from .ssi import spectral_similarity_index
+from .tlci import (
+    TLCI2012_Specification,
+    TLMF2013_Specification,
+    television_lighting_consistency_index,
+    television_luminaire_matching_factor,
+)
 from .tm3018 import (
     ColourQuality_Specification_ANSIIESTM3018,
     colour_fidelity_index_ANSIIESTM3018,
@@ -52,6 +58,14 @@
     "ColourQuality_Specification_ANSIIESTM3018",
     "colour_fidelity_index_ANSIIESTM3018",
 ]
+__all__ += [
+    "TLCI2012_Specification",
+    "television_lighting_consistency_index",
+]
+__all__ += [
+    "TLMF2013_Specification",
+    "television_luminaire_matching_factor",
+]
 
 COLOUR_FIDELITY_INDEX_METHODS = CanonicalMapping(
     {

colour/quality/datasets/__init__.py

@@ -1,9 +1,43 @@
 from .tcs import SDS_TCS
+from .tlci2012 import (
+    DATA_CAMERA_CURVES_TLCI2012,
+    DATA_CAMERA_SENSITIVITIES_TLCI2012,
+    DATA_DAYLIGHT_BASIS_TLCI2012,
+    DATA_DAYLIGHT_LOCUS_TLCI2012,
+    DATA_PLANCKIAN_LOCUS_TLCI2012,
+    DATA_TCS_TLCI2012,
+    MATRIX_TLCI2012_CAMERA,
+    MATRIX_TLCI2012_DISPLAY,
+    MATRIX_TLCI2012_SATURATION,
+    MSDS_CAMERA_CURVES_TLCI2012,
+    MSDS_CAMERA_SENSITIVITIES_TLCI2012,
+    MSDS_DAYLIGHT_BASIS_TLCI2012,
+    NAMES_TCS_TLCI2012,
+    SDS_TCS_TLCI2012,
+    SPECTRAL_SHAPE_TLCI2012,
+)
 from .vs import SDS_VS
 
 __all__ = [
     "SDS_TCS",
 ]
+__all__ += [
+    "DATA_CAMERA_CURVES_TLCI2012",
+    "DATA_CAMERA_SENSITIVITIES_TLCI2012",
+    "DATA_DAYLIGHT_BASIS_TLCI2012",
+    "DATA_DAYLIGHT_LOCUS_TLCI2012",
+    "DATA_PLANCKIAN_LOCUS_TLCI2012",
+    "DATA_TCS_TLCI2012",
+    "MATRIX_TLCI2012_CAMERA",
+    "MATRIX_TLCI2012_DISPLAY",
+    "MATRIX_TLCI2012_SATURATION",
+    "MSDS_CAMERA_CURVES_TLCI2012",
+    "MSDS_DAYLIGHT_BASIS_TLCI2012",
+    "SDS_TCS_TLCI2012",
+    "MSDS_CAMERA_SENSITIVITIES_TLCI2012",
+    "NAMES_TCS_TLCI2012",
+    "SPECTRAL_SHAPE_TLCI2012",
+]
 __all__ += [
     "SDS_VS",
 ]