Implements support for *Canon* colorspaces conversions and transfer functions.
"""
+from __future__ import division
+
import array
+import os
+
+import PyOpenColorIO as ocio
import aces_ocio.generate_lut as genlut
from aces_ocio.utilities import ColorSpace
transfer_function,
name,
lut_directory,
- lut_resolution_1d):
+ lut_resolution_1d,
+ aliases):
"""
Object description.
Return value description.
"""
- name = "%s - %s" % (transfer_function, gamut)
- if transfer_function == "":
- name = "Linear - %s" % gamut
- if gamut == "":
- name = "%s" % transfer_function
+ name = '%s - %s' % (transfer_function, gamut)
+ if transfer_function == '':
+ name = 'Linear - %s' % gamut
+ if gamut == '':
+ name = '%s' % transfer_function
cs = ColorSpace(name)
cs.description = name
+ cs.aliases = aliases
cs.equality_group = ''
cs.family = 'Canon'
cs.is_data = False
- def legal_to_full(codeValue):
- return (codeValue - 64.0) / (940.0 - 64.0)
+ # A linear space needs allocation variables
+ if transfer_function == '':
+ cs.allocation_type = ocio.Constants.ALLOCATION_LG2
+ cs.allocation_vars = [-8, 5, 0.00390625]
+
+ def legal_to_full(code_value):
+ return (code_value - 64) / (940 - 64)
- def c_log_to_linear(codeValue):
+ def c_log_to_linear(code_value):
# log = fullToLegal(c1 * log10(c2*linear + 1) + c3)
# linear = (pow(10, (legalToFul(log) - c3)/c1) - 1)/c2
c1 = 0.529136
c2 = 10.1596
c3 = 0.0730597
- linear = (pow(10.0, (legal_to_full(codeValue) - c3) / c1) - 1.0) / c2
+ linear = (pow(10, (legal_to_full(code_value) - c3) / c1) - 1) / c2
linear *= 0.9
- # print(codeValue, linear)
+
return linear
cs.to_reference_transforms = []
- if transfer_function == "Canon-Log":
- data = array.array('f', "\0" * lut_resolution_1d * 4)
+ if transfer_function == 'Canon-Log':
+ data = array.array('f', '\0' * lut_resolution_1d * 4)
for c in range(lut_resolution_1d):
- data[c] = c_log_to_linear(1023.0 * c / (lut_resolution_1d - 1))
+ data[c] = c_log_to_linear(1023 * c / (lut_resolution_1d - 1))
- lut = "%s_to_linear.spi1d" % transfer_function
- genlut.write_SPI_1d(lut_directory + "/" + lut,
- 0.0,
- 1.0,
- data,
- lut_resolution_1d,
- 1)
+ lut = '%s_to_linear.spi1d' % transfer_function
+ genlut.write_SPI_1d(
+ os.path.join(lut_directory, lut),
+ 0,
+ 1,
+ data,
+ lut_resolution_1d,
+ 1)
cs.to_reference_transforms.append({
'type': 'lutFile',
if gamut == 'Rec. 709 Daylight':
cs.to_reference_transforms.append({
'type': 'matrix',
- 'matrix': [0.561538969, 0.402060105, 0.036400926, 0.0,
- 0.092739623, 0.924121198, -0.016860821, 0.0,
- 0.084812961, 0.006373835, 0.908813204, 0.0,
- 0, 0, 0, 1.0],
+ 'matrix': [0.561538969, 0.402060105, 0.036400926, 0,
+ 0.092739623, 0.924121198, -0.016860821, 0,
+ 0.084812961, 0.006373835, 0.908813204, 0,
+ 0, 0, 0, 1],
'direction': 'forward'})
elif gamut == 'Rec. 709 Tungsten':
cs.to_reference_transforms.append({
'type': 'matrix',
- 'matrix': [0.566996399, 0.365079418, 0.067924183, 0.0,
- 0.070901044, 0.880331008, 0.048767948, 0.0,
- 0.073013542, -0.066540862, 0.99352732, 0.0,
- 0, 0, 0, 1.0],
+ 'matrix': [0.566996399, 0.365079418, 0.067924183, 0,
+ 0.070901044, 0.880331008, 0.048767948, 0,
+ 0.073013542, -0.066540862, 0.99352732, 0,
+ 0, 0, 0, 1],
'direction': 'forward'})
elif gamut == 'DCI-P3 Daylight':
cs.to_reference_transforms.append({
'type': 'matrix',
- 'matrix': [0.607160575, 0.299507286, 0.093332140, 0.0,
- 0.004968120, 1.050982224, -0.055950343, 0.0,
- -0.007839939, 0.000809127, 1.007030813, 0.0,
- 0, 0, 0, 1.0],
+ 'matrix': [0.607160575, 0.299507286, 0.093332140, 0,
+ 0.004968120, 1.050982224, -0.055950343, 0,
+ -0.007839939, 0.000809127, 1.007030813, 0,
+ 0, 0, 0, 1],
'direction': 'forward'})
elif gamut == 'DCI-P3 Tungsten':
cs.to_reference_transforms.append({
'type': 'matrix',
- 'matrix': [0.650279125, 0.253880169, 0.095840706, 0.0,
- -0.026137986, 1.017900530, 0.008237456, 0.0,
- 0.007757558, -0.063081669, 1.055324110, 0.0,
- 0, 0, 0, 1.0],
+ 'matrix': [0.650279125, 0.253880169, 0.095840706, 0,
+ -0.026137986, 1.017900530, 0.008237456, 0,
+ 0.007757558, -0.063081669, 1.055324110, 0,
+ 0, 0, 0, 1],
'direction': 'forward'})
elif gamut == 'Cinema Gamut Daylight':
cs.to_reference_transforms.append({
'type': 'matrix',
- 'matrix': [0.763064455, 0.149021161, 0.087914384, 0.0,
- 0.003657457, 1.10696038, -0.110617837, 0.0,
- -0.009407794, -0.218383305, 1.227791099, 0.0,
- 0, 0, 0, 1.0],
+ 'matrix': [0.763064455, 0.149021161, 0.087914384, 0,
+ 0.003657457, 1.10696038, -0.110617837, 0,
+ -0.009407794, -0.218383305, 1.227791099, 0,
+ 0, 0, 0, 1],
'direction': 'forward'})
elif gamut == 'Cinema Gamut Tungsten':
cs.to_reference_transforms.append({
'type': 'matrix',
- 'matrix': [0.817416293, 0.090755698, 0.091828009, 0.0,
- -0.035361374, 1.065690585, -0.030329211, 0.0,
- 0.010390366, -0.299271107, 1.288880741, 0.0,
- 0, 0, 0, 1.0],
+ 'matrix': [0.817416293, 0.090755698, 0.091828009, 0,
+ -0.035361374, 1.065690585, -0.030329211, 0,
+ 0.010390366, -0.299271107, 1.288880741, 0,
+ 0, 0, 0, 1],
'direction': 'forward'})
cs.from_reference_transforms = []
# Full conversion
c_log_1 = create_c_log(
- "Rec. 709 Daylight",
- "Canon-Log",
- "Canon-Log",
+ 'Rec. 709 Daylight',
+ 'Canon-Log',
+ 'Canon-Log',
lut_directory,
- lut_resolution_1d)
+ lut_resolution_1d,
+ ["canonlog_rec709day"])
colorspaces.append(c_log_1)
c_log_2 = create_c_log(
- "Rec. 709 Tungsten",
- "Canon-Log",
- "Canon-Log",
+ 'Rec. 709 Tungsten',
+ 'Canon-Log',
+ 'Canon-Log',
lut_directory,
- lut_resolution_1d)
+ lut_resolution_1d,
+ ["canonlog_rec709tung"])
colorspaces.append(c_log_2)
c_log_3 = create_c_log(
- "DCI-P3 Daylight",
- "Canon-Log",
- "Canon-Log",
+ 'DCI-P3 Daylight',
+ 'Canon-Log',
+ 'Canon-Log',
lut_directory,
- lut_resolution_1d)
+ lut_resolution_1d,
+ ["canonlog_dcip3day"])
colorspaces.append(c_log_3)
c_log_4 = create_c_log(
- "DCI-P3 Tungsten",
- "Canon-Log",
- "Canon-Log",
+ 'DCI-P3 Tungsten',
+ 'Canon-Log',
+ 'Canon-Log',
lut_directory,
- lut_resolution_1d)
+ lut_resolution_1d,
+ ["canonlog_dcip3tung"])
colorspaces.append(c_log_4)
c_log_5 = create_c_log(
- "Cinema Gamut Daylight",
- "Canon-Log",
- "Canon-Log",
+ 'Cinema Gamut Daylight',
+ 'Canon-Log',
+ 'Canon-Log',
lut_directory,
- lut_resolution_1d)
+ lut_resolution_1d,
+ ["canonlog_cgamutday"])
colorspaces.append(c_log_5)
c_log_6 = create_c_log(
- "Cinema Gamut Tungsten",
- "Canon-Log",
- "Canon-Log",
+ 'Cinema Gamut Tungsten',
+ 'Canon-Log',
+ 'Canon-Log',
lut_directory,
- lut_resolution_1d)
+ lut_resolution_1d,
+ ["canonlog_cgamuttung"])
colorspaces.append(c_log_6)
- # Linearization only
+ # Linearization Only
c_log_7 = create_c_log(
'',
- "Canon-Log",
- "Canon-Log",
+ 'Canon-Log',
+ 'Canon-Log',
lut_directory,
- lut_resolution_1d)
+ lut_resolution_1d,
+ ["crv_canonlog"])
colorspaces.append(c_log_7)
- # Primaries only
+ # Primaries Only
c_log_8 = create_c_log(
- "Rec. 709 Daylight",
- "",
- "Canon-Log",
+ 'Rec. 709 Daylight',
+ '',
+ 'Canon-Log',
lut_directory,
- lut_resolution_1d)
+ lut_resolution_1d,
+ ["lin_rec709day"])
colorspaces.append(c_log_8)
c_log_9 = create_c_log(
- "Rec. 709 Tungsten",
- "",
- "Canon-Log",
+ 'Rec. 709 Tungsten',
+ '',
+ 'Canon-Log',
lut_directory,
- lut_resolution_1d)
+ lut_resolution_1d,
+ ["lin_rec709tung"])
colorspaces.append(c_log_9)
c_log_10 = create_c_log(
- "DCI-P3 Daylight",
- "",
- "Canon-Log",
+ 'DCI-P3 Daylight',
+ '',
+ 'Canon-Log',
lut_directory,
- lut_resolution_1d)
+ lut_resolution_1d,
+ ["lin_dcip3day"])
colorspaces.append(c_log_10)
c_log_11 = create_c_log(
- "DCI-P3 Tungsten",
- "",
- "Canon-Log",
+ 'DCI-P3 Tungsten',
+ '',
+ 'Canon-Log',
lut_directory,
- lut_resolution_1d)
+ lut_resolution_1d,
+ ["lin_dcip3tung"])
colorspaces.append(c_log_11)
c_log_12 = create_c_log(
- "Cinema Gamut Daylight",
- "",
- "Canon-Log",
+ 'Cinema Gamut Daylight',
+ '',
+ 'Canon-Log',
lut_directory,
- lut_resolution_1d)
+ lut_resolution_1d,
+ ["lin_cgamutday"])
colorspaces.append(c_log_12)
c_log_13 = create_c_log(
- "Cinema Gamut Tungsten",
- "",
- "Canon-Log",
+ 'Cinema Gamut Tungsten',
+ '',
+ 'Canon-Log',
lut_directory,
- lut_resolution_1d)
+ lut_resolution_1d,
+ ["lin_cgamuttung"])
colorspaces.append(c_log_13)
return colorspaces
projects / OpenColorIO-Configs.git / blobdiff