├── COPYING
├── README.rst
├── cluttool
├── __init__.py
└── cluttool.py
└── setup.py
/COPYING:
--------------------------------------------------------------------------------
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584 | Later license versions may give you additional or different
585 | permissions. However, no additional obligations are imposed on any
586 | author or copyright holder as a result of your choosing to follow a
587 | later version.
588 |
589 | 15. Disclaimer of Warranty.
590 |
591 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
592 | APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
593 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
594 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
595 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
596 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
597 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
598 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
599 |
600 | 16. Limitation of Liability.
601 |
602 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
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608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
610 | SUCH DAMAGES.
611 |
612 | 17. Interpretation of Sections 15 and 16.
613 |
614 | If the disclaimer of warranty and limitation of liability provided
615 | above cannot be given local legal effect according to their terms,
616 | reviewing courts shall apply local law that most closely approximates
617 | an absolute waiver of all civil liability in connection with the
618 | Program, unless a warranty or assumption of liability accompanies a
619 | copy of the Program in return for a fee.
620 |
621 | END OF TERMS AND CONDITIONS
622 |
623 | How to Apply These Terms to Your New Programs
624 |
625 | If you develop a new program, and you want it to be of the greatest
626 | possible use to the public, the best way to achieve this is to make it
627 | free software which everyone can redistribute and change under these terms.
628 |
629 | To do so, attach the following notices to the program. It is safest
630 | to attach them to the start of each source file to most effectively
631 | state the exclusion of warranty; and each file should have at least
632 | the "copyright" line and a pointer to where the full notice is found.
633 |
634 |
635 | Copyright (C)
636 |
637 | This program is free software: you can redistribute it and/or modify
638 | it under the terms of the GNU General Public License as published by
639 | the Free Software Foundation, either version 3 of the License, or
640 | (at your option) any later version.
641 |
642 | This program is distributed in the hope that it will be useful,
643 | but WITHOUT ANY WARRANTY; without even the implied warranty of
644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
645 | GNU General Public License for more details.
646 |
647 | You should have received a copy of the GNU General Public License
648 | along with this program. If not, see .
649 |
650 | Also add information on how to contact you by electronic and paper mail.
651 |
652 | If the program does terminal interaction, make it output a short
653 | notice like this when it starts in an interactive mode:
654 |
655 | Copyright (C)
656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
657 | This is free software, and you are welcome to redistribute it
658 | under certain conditions; type `show c' for details.
659 |
660 | The hypothetical commands `show w' and `show c' should show the appropriate
661 | parts of the General Public License. Of course, your program's commands
662 | might be different; for a GUI interface, you would use an "about box".
663 |
664 | You should also get your employer (if you work as a programmer) or school,
665 | if any, to sign a "copyright disclaimer" for the program, if necessary.
666 | For more information on this, and how to apply and follow the GNU GPL, see
667 | .
668 |
669 | The GNU General Public License does not permit incorporating your program
670 | into proprietary programs. If your program is a subroutine library, you
671 | may consider it more useful to permit linking proprietary applications with
672 | the library. If this is what you want to do, use the GNU Lesser General
673 | Public License instead of this License. But first, please read
674 | .
675 |
--------------------------------------------------------------------------------
/README.rst:
--------------------------------------------------------------------------------
1 | cluttool - create and convert 3D/color LUTs
2 | -------------------------------------------
3 |
4 | This tool is a sort of swiss army knife for color LUTs. Color LUTs concisely
5 | describe linear color transformations that many video monitors and post
6 | production software can understand. There are a relatively small number of
7 | color LUT file formats, such as 3D LUT (3DL), Cube LUT, and Hald CLUT, but no
8 | one LUT format is used by every software and firmware system. This tool may
9 | help you to convert between LUT formats, or generate new ones in the format
10 | that you need.
11 |
12 | Not all LUTs are created equal
13 | ------------------------------
14 |
15 | This tool is not aware of the context of the color LUT. It doesn't know what
16 | type of source medium it was made for, nor what its goals are. It simply
17 | converts the color transformations verbatim.
18 |
19 | Those film simulation HaldCLUT files aren't going to apply correctly to s-log
20 | footage, and those video style LUT packs aren't going to apply corrrectly to
21 | your 8-bit gamma or 14-bit RAW photos. If you're grabbing color LUTs off the
22 | internet, you should understand what *source* the color LUT was created for,
23 | and what kind of transformation it does.
24 |
25 | When in doubt, just test it. However, some LUT packs are purchased and
26 | non-refundable. My hope is that this tool will help make it easier for you to
27 | freely create your own color LUTs for your own needs.
28 |
29 | Supported color LUT formats:
30 | -----------------------
31 |
32 | +------------------+--------------------+------------+
33 | | Source format | Destination format | Supported? |
34 | +==================+====================+============+
35 | | Hald CLUT (.png) | 3D LUT (.3dl) | Yes |
36 | +------------------+--------------------+------------+
37 | | Hald CLUT (.png) | Cube LUT (.cube) | Yes |
38 | +------------------+--------------------+------------+
39 | | 3D LUT (.3dl) | Hald CLUT (.png) | No |
40 | +------------------+--------------------+------------+
41 | | 3D LUT (.3dl) | Cube LUT (.cube) | No |
42 | +------------------+--------------------+------------+
43 | | Cube LUT (.cube) | Hald CLUT (.png) | No |
44 | +------------------+--------------------+------------+
45 | | Cube LUT (.cube) | 3D LUT (.3dl) | No |
46 | +------------------+--------------------+------------+
47 |
48 | I built the framework to support all possible conversions, but I personally only
49 | needed to convert from Hald CLUT (.png) to cube and 3dl, so that is all I
50 | implemented. The places in the code marked ``raise NotImplementedError()``
51 | indicate where there is missing logic for the unimplemented conversions.
52 |
53 | Similar Tools
54 | -------------
55 |
56 | 3DLutConverter is another color LUT converter with similar goals:
57 |
58 | https://github.com/spoilt-exile/3DLutConverter
59 |
60 | However, it only supports...(TODO)
61 |
62 | References:
63 | -----------
64 |
65 | * Hald CLUT reference: http://www.quelsolaar.com/technology/clut.html
66 | * 3D LUT (3DL) reference: http://download.autodesk.com/us/systemdocs/pdf/lustre_color_management_user_guide.pdf#page=14
67 | * Cube LUT reference: http://wwwimages.adobe.com/www.adobe.com/content/dam/acom/en/products/speedgrade/cc/pdfs/cube-lut-specification-1.0.pdf
68 |
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/cluttool/__init__.py:
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https://raw.githubusercontent.com/pwnage101/cluttool/2489df78eb6c4f7eba3ee18dbfcd576c7cd81f35/cluttool/__init__.py
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/cluttool/cluttool.py:
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1 | #!/usr/bin/env python3
2 | #
3 | # Copyright (C) 2018 Troy Sankey
4 | # This file is released under the GNU GPL, version 3 or a later revision.
5 | # For further details see the COPYING file
6 | #
7 | # References:
8 | # - Hald CLUT reference: http://www.quelsolaar.com/technology/clut.html
9 | # - 3D LUT (3DL) reference: http://download.autodesk.com/us/systemdocs/pdf/lustre_color_management_user_guide.pdf#page=14
10 |
11 | import sys
12 | import numbers
13 | from array import array
14 | from decimal import Decimal
15 | import math
16 | import png
17 | import click
18 |
19 |
20 | def fatal_error(message):
21 | """
22 | Display an error message and exit.
23 | """
24 | click.echo(message)
25 | sys.exit(1)
26 |
27 | def is_perfect_six_root(n):
28 | c = int(n**(1/6.))
29 | return (c**6 == n) or ((c+1)**6 == n)
30 |
31 | def write_png(path, data, width, height, bit_depth):
32 | """
33 | Create an "identity" PNG file.
34 | """
35 | writer = png.writer(
36 | width=width,
37 | height=height,
38 | bitdepth=bit_depth,
39 | )
40 | writer.write_array(path, data)
41 |
42 |
43 | def uniform_intervals(end, samples, floating_point=False):
44 | """
45 | Make `samples` uniformly distributed numbers from 0 to `end`.
46 | """
47 | dist = end/float(samples-1)
48 | values = [dist*i for i in range(samples)]
49 | if not floating_point:
50 | values = [int(round(v)) for v in values]
51 | for idx in range(1, samples):
52 | actual_dist = values[idx] - values[idx-1]
53 | error_frac = abs(float(actual_dist)/dist - 1.0)
54 | if error_frac > 0.07:
55 | raise ValueError('input parameters to uniform_intervals would yield a non-uniform distribution.')
56 | return values
57 |
58 |
59 | class Value3D(object):
60 |
61 | def __init__(self, components):
62 | self.components = tuple(components)
63 |
64 | def __str__(self):
65 | return 'Value3D({},{},{})'.format(*self.components)
66 |
67 | def __bytes__(self):
68 | return self.__str__()
69 |
70 | def __repr__(self):
71 | return self.__str__()
72 |
73 | def __iter__(self):
74 | return iter(self.components)
75 |
76 | def __add__(self, y):
77 | return Value3D(
78 | (
79 | self.components[0] + y.components[0],
80 | self.components[1] + y.components[1],
81 | self.components[2] + y.components[2],
82 | )
83 | )
84 |
85 | def __mul__(self, y):
86 | return Value3D(
87 | (
88 | self.components[0] * y,
89 | self.components[1] * y,
90 | self.components[2] * y,
91 | )
92 | )
93 |
94 | def __rmul__(self, x):
95 | return self.__mul__(x)
96 |
97 |
98 | def index_3d(data, size, r_idx, g_idx, b_idx):
99 | """
100 | Index a flattened 3-channel 3D cubic matrix.
101 | """
102 | idx = (r_idx) + (size * g_idx) + (size**2 * b_idx)
103 | idx *= 3
104 | # click.echo('index_3d(): size, r_idx, g_idx, b_idx = {},{},{},{}'.format(size, r_idx, g_idx, b_idx))
105 | # click.echo('index_3d(): idx = {}'.format(idx))
106 | return data[idx:idx+3]
107 |
108 |
109 | class ColorLUT(object):
110 | """
111 | """
112 | def __init__(self, data, sample_count=None, input_domain=None, red_increments_fastest=True):
113 | if not isinstance(data, array) or not isinstance(data[0], numbers.Number):
114 | raise ValueError('data parameter should be a flat list of numbers.')
115 | if not isinstance(sample_count, int):
116 | raise ValueError('sample_count parameter should be of type int.')
117 | if not isinstance(input_domain, numbers.Number):
118 | raise ValueError('input_domain parameter should be a number.')
119 | if isinstance(input_domain, numbers.Integral):
120 | if data.typecode not in 'bBhHiIlL':
121 | raise ValueError('input_domain parameter should have the same type as the data.')
122 | else:
123 | if data.typecode not in 'fd':
124 | raise ValueError('input_domain parameter should have the same type as the data.')
125 | if not len(data) == 3 * (sample_count**3):
126 | raise ValueError('The sample intervals do not appear to match the matrix dimensions.')
127 | self.data = data
128 | self.sample_count = sample_count
129 | self.input_domain = input_domain
130 | self.red_increments_fastest = red_increments_fastest
131 | if data.typecode in 'fd':
132 | self.datatype = numbers.Real
133 | elif data.typecode in 'bBhHiIlL':
134 | self.datatype = numbers.Integral
135 | self.sample_distance = self.input_domain / float(self.sample_count-1)
136 |
137 | def get_color_value_from_index(self, r_idx, g_idx, b_idx):
138 | """
139 | Determine the output color value given 3D matrix indices.
140 | """
141 | if not self.red_increments_fastest:
142 | r_idx, b_idx = b_idx, r_idx
143 | color_value = Value3D(index_3d(self.data, self.sample_count, r_idx, g_idx, b_idx))
144 | # click.echo('get_color_value_from_index(): r_idx,g_idx,b_idx = {},{},{}'.format(r_idx,g_idx,b_idx))
145 | # click.echo('get_color_value_from_index(): color_value = {}'.format(str(color_value)))
146 | return color_value
147 |
148 | def get_interpolated_color_value(self, r_input, g_input, b_input):
149 | """
150 | Determine the output color value using trilinear interpolation.
151 |
152 | Algorithm adapted from https://en.wikipedia.org/wiki/Trilinear_interpolation
153 | """
154 | # On wikipedia, the equations for v_d were:
155 | #
156 | # r_d = ( r - r_0 ) / ( r_1 - r_0 )
157 | # g_d = ( g - g_0 ) / ( g_1 - g_0 )
158 | # b_d = ( b - b_0 ) / ( b_1 - b_0 )
159 | #
160 | # but v-v_0 is equivalent to math.remainder(v, self.sample_distance),
161 | # and v_1-v_0 is equivalent to self.sample_distance,
162 | # therefore, v_d = float(Decimal(v_input) % Decimal(self.sample_distance)) / self.sample_distance.
163 | #
164 | # Furthermore, we need to handle the border case where v_input == the
165 | # maximum possible value (i.e. self.input_domain).
166 | if r_input == self.input_domain:
167 | r_0_idx = self.sample_count - 2
168 | r_d = 1
169 | else:
170 | r_0_idx = math.trunc(r_input/self.sample_distance)
171 | r_d = float(Decimal(r_input) % Decimal(self.sample_distance)) / self.sample_distance
172 |
173 | if g_input == self.input_domain:
174 | g_0_idx = self.sample_count - 2
175 | g_d = 1
176 | else:
177 | g_0_idx = math.trunc(g_input/self.sample_distance)
178 | g_d = float(Decimal(g_input) % Decimal(self.sample_distance)) / self.sample_distance
179 |
180 | if b_input == self.input_domain:
181 | b_0_idx = self.sample_count - 2
182 | b_d = 1
183 | else:
184 | b_0_idx = math.trunc(b_input/self.sample_distance)
185 | b_d = float(Decimal(b_input) % Decimal(self.sample_distance)) / self.sample_distance
186 |
187 | r_1_idx = r_0_idx + 1
188 | g_1_idx = g_0_idx + 1
189 | b_1_idx = b_0_idx + 1
190 |
191 | c_000 = self.get_color_value_from_index(r_0_idx, g_0_idx, b_0_idx)
192 | c_001 = self.get_color_value_from_index(r_0_idx, g_0_idx, b_1_idx)
193 | c_010 = self.get_color_value_from_index(r_0_idx, g_1_idx, b_0_idx)
194 | c_011 = self.get_color_value_from_index(r_0_idx, g_1_idx, b_1_idx)
195 | c_100 = self.get_color_value_from_index(r_1_idx, g_0_idx, b_0_idx)
196 | c_101 = self.get_color_value_from_index(r_1_idx, g_0_idx, b_1_idx)
197 | c_110 = self.get_color_value_from_index(r_1_idx, g_1_idx, b_0_idx)
198 | c_111 = self.get_color_value_from_index(r_1_idx, g_1_idx, b_1_idx)
199 |
200 | c_00 = c_000*(1.0-r_d) + c_100*r_d
201 | c_01 = c_001*(1.0-r_d) + c_101*r_d
202 | c_10 = c_010*(1.0-r_d) + c_110*r_d
203 | c_11 = c_011*(1.0-r_d) + c_111*r_d
204 |
205 | c_0 = c_00*(1.0-g_d) + c_10*g_d
206 | c_1 = c_01*(1.0-g_d) + c_11*g_d
207 |
208 | c = c_0*(1.0-b_d) + c_1*b_d
209 |
210 | return c
211 |
212 | def get_values_translated(
213 | self,
214 | increment_red_fastest=True,
215 | output_sample_count=None,
216 | output_domain=None,
217 | ):
218 | """
219 | Make an iterable of output color values in sequence.
220 |
221 | If necessary, reorder the output data values in order to make them
222 | correspond to red/blue input channels incrementing most/least rapidly
223 | by default. Switch increment_red_fastest=False for the opposite
224 | behavior
225 | """
226 | interpolate_output = output_sample_count != self.sample_count
227 | scale_output = output_domain != self.input_domain
228 |
229 | scaling_factor = output_domain / float(self.input_domain)
230 |
231 | if increment_red_fastest:
232 | indexes = (
233 | (r, g, b)
234 | for b in range(output_sample_count)
235 | for g in range(output_sample_count)
236 | for r in range(output_sample_count)
237 | )
238 | else:
239 | indexes = (
240 | (r, g, b)
241 | for r in range(output_sample_count)
242 | for g in range(output_sample_count)
243 | for b in range(output_sample_count)
244 | )
245 |
246 | if interpolate_output:
247 | input_values = (
248 | Value3D(idx)*(self.input_domain/float(output_sample_count-1))
249 | for idx in indexes
250 | )
251 | output_values = (
252 | self.get_interpolated_color_value(*input_value)
253 | for input_value in input_values
254 | )
255 | else:
256 | output_values = (
257 | self.get_color_value_from_index(*idx)
258 | for idx in indexes
259 | )
260 |
261 | if scale_output:
262 | output_values = (
263 | output_value*scaling_factor
264 | for output_value in output_values
265 | )
266 |
267 | return output_values
268 |
269 | @classmethod
270 | def from_haldclut(cls, src):
271 | src_png = png.Reader(filename=src)
272 | width, height, data, meta = src_png.read_flat()
273 | if 'palette' in meta:
274 | raise ValueError('Then given PNG file uses a color palette. Refusing.')
275 | if 'gamma' in meta:
276 | raise ValueError('Then given PNG file contains a gamma value. Refusing.')
277 | if 'transparent' in meta:
278 | raise ValueError('Then given PNG file specifies a transparent color. Refusing.')
279 | if meta['alpha']:
280 | raise ValueError('Then given PNG file contains an alpha channel. Refusing.')
281 | if meta['greyscale']:
282 | def triple_generator(d):
283 | for val in d:
284 | yield val
285 | yield val
286 | yield val
287 | data = array(data.typecode, triple_generator(data))
288 | if meta['bitdepth'] not in (8, 16):
289 | raise ValueError('Then given PNG file specifies an unsupported bit depth. Refusing.')
290 | width_is_square_root_of_perfect_six_root = is_perfect_six_root(width**2)
291 | if width != height or not width_is_square_root_of_perfect_six_root:
292 | raise ValueError('The given PNG file does not have appropriate Hald CLUT dimensions. Refusing.')
293 | sample_count = int(round((width**2)**(1./3)))
294 | input_domain = 2**meta['bitdepth']-1
295 | click.echo('from_haldclut(): PNG dimensions = {}x{}'.format(width, height))
296 | click.echo('from_haldclut(): PNG bit depth = {}'.format(meta['bitdepth']))
297 | click.echo('from_haldclut(): PNG array typecode = {}'.format(data.typecode))
298 | click.echo('from_haldclut(): Inferred input domain = {}'.format(input_domain))
299 | click.echo('from_haldclut(): Inferred 3D matrix dimensions = {0}x{0}x{0}'.format(sample_count))
300 | return cls(data, sample_count=sample_count, input_domain=input_domain)
301 |
302 | @classmethod
303 | def from_3dl(cls, src):
304 | raise NotImplementedError()
305 |
306 | def write_haldclut(self):
307 | raise NotImplementedError()
308 |
309 | def write_3dl(self, dest):
310 | output_domain = 1023
311 | sample_intervals = uniform_intervals(output_domain, self.sample_count)
312 | color_value_gen = self.get_values_translated(
313 | increment_red_fastest=False,
314 | output_sample_count=self.sample_count,
315 | output_domain=output_domain,
316 | )
317 | with open(dest, 'w') as destfile:
318 | destfile.write(' '.join(str(v) for v in sample_intervals))
319 | destfile.write('\n')
320 | for color in color_value_gen:
321 | line = ' '.join('{:.0f}'.format(v) for v in color)
322 | destfile.write(line)
323 | destfile.write('\n')
324 |
325 | def write_cube(self, dest):
326 | output_domain = 1.0
327 | output_sample_count = self.sample_count
328 | color_value_gen = self.get_values_translated(
329 | output_sample_count=output_sample_count,
330 | output_domain=output_domain,
331 | )
332 | with open(dest, 'w') as destfile:
333 | destfile.write('LUT_3D_SIZE {}'.format(output_sample_count))
334 | destfile.write('\n')
335 | for color in color_value_gen:
336 | line = ' '.join('{:.7g}'.format(v) for v in color)
337 | destfile.write(line)
338 | destfile.write('\n')
339 |
340 |
341 | @click.command()
342 | @click.argument(
343 | 'src',
344 | type=click.Path(exists=True, dir_okay=False),
345 | )
346 | @click.argument(
347 | 'dest',
348 | type=click.Path(exists=False),
349 | )
350 | @click.option(
351 | '--dest-type',
352 | help='Type of color LUT. If this argument is not provided, the output type is inferred from the destination filename extension.',
353 | type=click.Choice(['3dl', 'haldclut', 'cube']),
354 | )
355 | def cli(src, dest, dest_type):
356 | if not src:
357 | raise ValueError('Please specify a source LUT file.')
358 | if not dest:
359 | raise ValueError('Please specify a destination LUT file.')
360 | if not dest_type:
361 | dest_type = dest.lower().split('.')[-1]
362 | if dest_type == 'png':
363 | dest_type = 'haldclut'
364 | dest_type = dest_type.lower()
365 | src_ext = src.lower().split('.')[-1]
366 | if src_ext == 'png':
367 | clut = ColorLUT.from_haldclut(src)
368 | elif src_ext == '3dl':
369 | clut = ColorLUT.from_3dl(src)
370 | elif src_ext == 'cube':
371 | clut = ColorLUT.from_haldclut(src)
372 | else:
373 | raise ValueError('Not an appropriate Color LUT file type: {}'.format(src_ext))
374 | if dest_type == 'haldclut':
375 | clut.write_haldclut(dest)
376 | elif dest_type == '3dl':
377 | clut.write_3dl(dest)
378 | elif dest_type == 'cube':
379 | clut.write_cube(dest)
380 | else:
381 | raise ValueError('Not an appropriate Color LUT file type: {}'.format(dest_type))
382 |
383 |
384 | if __name__ == '__main__':
385 | cli()
386 |
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/setup.py:
--------------------------------------------------------------------------------
1 | from setuptools import setup
2 | setup(
3 | name="cluttool",
4 | version="wip", # i.e. this version doesn't even work yet.
5 | packages=find_packages(),
6 | entry_points={
7 | 'gui_scripts': [
8 | 'cluttool = cluttool:cli',
9 | ]
10 | },
11 | install_requires=['click>=6.7<8.0'],
12 | install_requires=load_requirements('requirements/base.in'),
13 | author="Troy Sankey",
14 | author_email="sankeytms@gmail.com",
15 | description="create and convert 3D/color LUTs",
16 | license="GPLv3",
17 | keywords="lut hald clut 3dl 3d color",
18 | classifiers=[
19 | (
20 | 'License :: OSI Approved'
21 | ':: GNU General Public License v3 or later (GPLv3+)'),
22 | 'Operating System :: POSIX',
23 | 'Programming Language :: Python :: 3.5',
24 | 'Programming Language :: Python :: 3.6',
25 | 'Programming Language :: Python :: 3.7',
26 | 'Programming Language :: Python :: 3 :: Only',
27 | ],
28 | )
29 |
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