X-Git-Url: http://users.mur.at/ms/git/gitweb/?a=blobdiff_plain;f=aces_1.0.0%2Fpython%2Faces_ocio%2Fgenerate_lut.py;h=94bd7359be0715208f6137253dfe71c83b18f6e3;hb=008ab628a49b703cd1141a39b7963947adce9e99;hp=605963651302faa5e9ed0ee8e54385e7e8f9bf8f;hpb=1ef6829d081edc2cdb9e7610f33ae52a0a7f0ee7;p=OpenColorIO-Configs.git diff --git a/aces_1.0.0/python/aces_ocio/generate_lut.py b/aces_1.0.0/python/aces_ocio/generate_lut.py index 6059636..94bd735 100755 --- a/aces_1.0.0/python/aces_ocio/generate_lut.py +++ b/aces_1.0.0/python/aces_ocio/generate_lut.py @@ -2,7 +2,7 @@ # -*- coding: utf-8 -*- """ -Defines objects to generate various kind of 1d, 2d and 3d LUTs in various file +Defines objects to generate various kind of 1D and 3D LUTs in various file formats. """ @@ -10,7 +10,6 @@ from __future__ import division import array import os -import sys import OpenImageIO as oiio @@ -25,6 +24,9 @@ __status__ = 'Production' __all__ = ['generate_1d_LUT_image', 'write_SPI_1d', + 'write_CSP_1d', + 'write_CTL_1d', + 'write_1d', 'generate_1d_LUT_from_image', 'generate_3d_LUT_image', 'generate_3d_LUT_from_image', @@ -41,17 +43,23 @@ def generate_1d_LUT_image(ramp_1d_path, min_value=0, max_value=1): """ - Object description. + Generates a 1D LUT image, i.e. a simple ramp, going from the min_value to + the max_value. Parameters ---------- - parameter : type - Parameter description. + ramp_1d_path : str or unicode + The path of the 1D ramp image to be written + resolution : int, optional + The resolution of the 1D ramp image to be written + min_value : float, optional + The lowest value in the 1D ramp + max_value : float, optional + The highest value in the 1D ramp Returns ------- - type - Return value description. + None """ ramp = oiio.ImageOutput.create(ramp_1d_path) @@ -78,28 +86,39 @@ def generate_1d_LUT_image(ramp_1d_path, ramp.close() -def write_SPI_1d(filename, - from_min, - from_max, - data, - entries, - channels, +def write_SPI_1d(filename, + from_min, + from_max, + data, + entries, + channels, components=3): """ - Object description. + Writes a 1D LUT in the Sony Pictures Imageworks .spi1d format. Credit to *Alex Fry* for the original single channel version of the spi1d writer. Parameters ---------- - parameter : type - Parameter description. + filename : str or unicode + The path of the 1D LUT to be written + from_min : float + The lowest value in the 1D ramp + from_max : float + The highest value in the 1D ramp + data : array of floats + The entries in the LUT + entries : int + The resolution of the LUT, i.e. number of entries in the data set + channels : int + The number of channels in the data + components : int, optional + The number of channels in the data to actually write Returns ------- - type - Return value description. + None """ # May want to use fewer components than there are channels in the data @@ -120,25 +139,36 @@ def write_SPI_1d(filename, fp.write('}\n') -def write_CSP_1d(filename, - from_min, - from_max, - data, - entries, - channels, +def write_CSP_1d(filename, + from_min, + from_max, + data, + entries, + channels, components=3): """ - Object description. + Writes a 1D LUT in the Rising Sun Research Cinespace .csp format. Parameters ---------- - parameter : type - Parameter description. + filename : str or unicode + The path of the 1D LUT to be written + from_min : float + The lowest value in the 1D ramp + from_max : float + The highest value in the 1D ramp + data : array of floats + The entries in the LUT + entries : int + The resolution of the LUT, i.e. number of entries in the data set + channels : int + The number of channels in the data + components : int, optional + The number of channels in the data to actually write Returns ------- - type - Return value description. + None """ # May want to use fewer components than there are channels in the data @@ -149,8 +179,8 @@ def write_CSP_1d(filename, fp.write('CSPLUTV100\n') fp.write('1D\n') fp.write('\n') - fp.write('BEGIN METADATA') - fp.write('END METADATA') + fp.write('BEGIN METADATA\n') + fp.write('END METADATA\n') fp.write('\n') @@ -168,64 +198,186 @@ def write_CSP_1d(filename, fp.write('%d\n' % entries) if components == 1: - for i in range(0, entries): - entry = '' - for j in range(3): - entry = '%s %s' % (entry, data[i * channels]) - fp.write('%s\n' % entry) + for i in range(0, entries): + entry = '' + for j in range(3): + entry = '%s %s' % (entry, data[i * channels]) + fp.write('%s\n' % entry) else: - for i in range(entries): - entry = '' - for j in range(components): - entry = '%s %s' % (entry, data[i * channels + j]) - fp.write('%s\n' % entry) + for i in range(entries): + entry = '' + for j in range(components): + entry = '%s %s' % (entry, data[i * channels + j]) + fp.write('%s\n' % entry) fp.write('\n') -def write_1d(filename, - from_min, - from_max, - data, - data_entries, - data_channels, + +def write_CTL_1d(filename, + from_min, + from_max, + data, + entries, + channels, + components=3): + """ + Writes a 1D LUT in the Academy Color Transformation Language .ctl format. + + Parameters + ---------- + filename : str or unicode + The path of the 1D LUT to be written + from_min : float + The lowest value in the 1D ramp + from_max : float + The highest value in the 1D ramp + data : array of floats + The entries in the LUT + entries : int + The resolution of the LUT, i.e. number of entries in the data set + channels : int + The number of channels in the data + components : int, optional + The number of channels in the data to actually write + + Returns + ------- + None + """ + + # May want to use fewer components than there are channels in the data + # Most commonly used for single channel LUTs + components = min(3, components, channels) + + with open(filename, 'w') as fp: + fp.write('// %d x %d LUT generated by "generate_lut"\n' % ( + entries, components)) + fp.write('\n') + fp.write('const float min1d = %3.9f;\n' % from_min) + fp.write('const float max1d = %3.9f;\n' % from_max) + fp.write('\n') + + # Write LUT + if components == 1: + fp.write('const float lut[] = {\n') + for i in range(0, entries): + fp.write('%s' % data[i * channels]) + if i != (entries - 1): + fp.write(',') + fp.write('\n') + fp.write('};\n') + fp.write('\n') + else: + for j in range(components): + fp.write('const float lut%d[] = {\n' % j) + for i in range(0, entries): + fp.write('%s' % data[i * channels]) + if i != (entries - 1): + fp.write(',') + fp.write('\n') + fp.write('};\n') + fp.write('\n') + + fp.write('void main\n') + fp.write('(\n') + fp.write(' input varying float rIn,\n') + fp.write(' input varying float gIn,\n') + fp.write(' input varying float bIn,\n') + fp.write(' input varying float aIn,\n') + fp.write(' output varying float rOut,\n') + fp.write(' output varying float gOut,\n') + fp.write(' output varying float bOut,\n') + fp.write(' output varying float aOut\n') + fp.write(')\n') + fp.write('{\n') + fp.write(' float r = rIn;\n') + fp.write(' float g = gIn;\n') + fp.write(' float b = bIn;\n') + fp.write('\n') + fp.write(' // Apply LUT\n') + if components == 1: + fp.write(' r = lookup1D(lut, min1d, max1d, r);\n') + fp.write(' g = lookup1D(lut, min1d, max1d, g);\n') + fp.write(' b = lookup1D(lut, min1d, max1d, b);\n') + elif components == 3: + fp.write(' r = lookup1D(lut0, min1d, max1d, r);\n') + fp.write(' g = lookup1D(lut1, min1d, max1d, g);\n') + fp.write(' b = lookup1D(lut2, min1d, max1d, b);\n') + fp.write('\n') + fp.write(' rOut = r;\n') + fp.write(' gOut = g;\n') + fp.write(' bOut = b;\n') + fp.write(' aOut = aIn;\n') + fp.write('}\n') + + +def write_1d(filename, + from_min, + from_max, + data, + data_entries, + data_channels, lut_components=3, format='spi1d'): """ - Object description. + Writes a 1D LUT in the specified format. Parameters ---------- - parameter : type - Parameter description. + filename : str or unicode + The path of the 1D LUT to be written + from_min : float + The lowest value in the 1D ramp + from_max : float + The highest value in the 1D ramp + data : array of floats + The entries in the LUT + data_entries : int + The resolution of the LUT, i.e. number of entries in the data set + data_channels : int + The number of channels in the data + lut_components : int, optional + The number of channels in the data to actually use when writing + format : str or unicode, optional + The format of the the 1D LUT that will be written Returns ------- - type - Return value description. + None """ - ocioFormatsToExtensions = {'cinespace' : 'csp', - 'flame' : '3dl', - 'icc' : 'icc', - 'houdini' : 'lut', - 'lustre' : '3dl'} - - if format in ocioFormatsToExtensions: - if ocioFormatsToExtensions[format] == 'csp': - write_CSP_1d(filename, + ocio_formats_to_extensions = {'cinespace': 'csp', + 'flame': '3dl', + 'icc': 'icc', + 'houdini': 'lut', + 'lustre': '3dl', + 'ctl': 'ctl'} + + if format in ocio_formats_to_extensions: + if ocio_formats_to_extensions[format] == 'csp': + write_CSP_1d(filename, + from_min, + from_max, + data, + data_entries, + data_channels, + lut_components) + elif ocio_formats_to_extensions[format] == 'ctl': + write_CTL_1d(filename, + from_min, + from_max, + data, + data_entries, + data_channels, + lut_components) + else: + write_SPI_1d(filename, from_min, from_max, data, data_entries, data_channels, lut_components) - else: - write_SPI_1d(filename, - from_min, - from_max, - data, - data_entries, - data_channels, - lut_components) + def generate_1d_LUT_from_image(ramp_1d_path, output_path=None, @@ -234,17 +386,26 @@ def generate_1d_LUT_from_image(ramp_1d_path, channels=3, format='spi1d'): """ - Object description. + Reads a 1D LUT image and writes a 1D LUT in the specified format. Parameters ---------- - parameter : type - Parameter description. + ramp_1d_path : str or unicode + The path of the 1D ramp image to be read + output_path : str or unicode, optional + The path of the 1D LUT to be written + min_value : float, optional + The lowest value in the 1D ramp + max_value : float, optional + The highest value in the 1D ramp + channels : int, optional + The number of channels in the data + format : str or unicode, optional + The format of the the 1D LUT that will be written Returns ------- - type - Return value description. + None """ if output_path is None: @@ -261,23 +422,25 @@ def generate_1d_LUT_from_image(ramp_1d_path, type = oiio.FLOAT ramp_data = ramp.read_image(type) - write_1d(output_path, min_value, max_value, - ramp_data, ramp_width, ramp_channels, channels, format) + write_1d(output_path, min_value, max_value, + ramp_data, ramp_width, ramp_channels, channels, format) def generate_3d_LUT_image(ramp_3d_path, resolution=32): """ - Object description. + Generates a 3D LUT image covering the specified resolution + Relies on OCIO's ociolutimage command Parameters ---------- - parameter : type - Parameter description. + ramp_3d_path : str or unicode + The path of the 3D ramp image to be written + resolution : int, optional + The resolution of the 3D ramp image to be written Returns ------- - type - Return value description. + None """ args = ['--generate', @@ -293,77 +456,83 @@ def generate_3d_LUT_image(ramp_3d_path, resolution=32): lut_extract.execute() -def generate_3d_LUT_from_image(ramp_3d_path, - output_path=None, +def generate_3d_LUT_from_image(ramp_3d_path, + output_path=None, resolution=32, format='spi3d'): """ - Object description. + Reads a 3D LUT image and writes a 3D LUT in the specified format. + Relies on OCIO's ociolutimage command Parameters ---------- - parameter : type - Parameter description. + ramp_3d_path : str or unicode + The path of the 3D ramp image to be read + output_path : str or unicode, optional + The path of the 1D LUT to be written + resolution : int, optional + The resolution of the 3D LUT represented in the image + format : str or unicode, optional + The format of the the 3D LUT that will be written Returns ------- - type - Return value description. + None """ if output_path is None: output_path = '%s.%s' % (ramp_3d_path, 'spi3d') - ocioFormatsToExtensions = {'cinespace' : 'csp', - 'flame' : '3dl', - 'icc' : 'icc', - 'houdini' : 'lut', - 'lustre' : '3dl'} - - if format == 'spi3d' or not (format in ocioFormatsToExtensions): - # Extract a spi3d LUT - args = ['--extract', - '--cubesize', - str(resolution), - '--maxwidth', - str(resolution * resolution), - '--input', - ramp_3d_path, - '--output', - output_path] - lut_extract = Process(description='extract a 3d LUT', - cmd='ociolutimage', - args=args) - lut_extract.execute() + ocio_formats_to_extensions = {'cinespace': 'csp', + 'flame': '3dl', + 'icc': 'icc', + 'houdini': 'lut', + 'lustre': '3dl'} + + if format == 'spi3d' or not (format in ocio_formats_to_extensions): + # Extract a spi3d LUT + args = ['--extract', + '--cubesize', + str(resolution), + '--maxwidth', + str(resolution * resolution), + '--input', + ramp_3d_path, + '--output', + output_path] + lut_extract = Process(description='extract a 3d LUT', + cmd='ociolutimage', + args=args) + lut_extract.execute() else: - output_path_spi3d = '%s.%s' % (output_path, 'spi3d') - - # Extract a spi3d LUT - args = ['--extract', - '--cubesize', - str(resolution), - '--maxwidth', - str(resolution * resolution), - '--input', - ramp_3d_path, - '--output', - output_path_spi3d] - lut_extract = Process(description='extract a 3d LUT', - cmd='ociolutimage', - args=args) - lut_extract.execute() - - # Convert to a different format - args = ['--lut', - output_path_spi3d, - '--format', - format, - output_path] - lut_convert = Process(description='convert a 3d LUT', - cmd='ociobakelut', - args=args) - lut_convert.execute() + output_path_spi3d = '%s.%s' % (output_path, 'spi3d') + + # Extract a spi3d LUT + args = ['--extract', + '--cubesize', + str(resolution), + '--maxwidth', + str(resolution * resolution), + '--input', + ramp_3d_path, + '--output', + output_path_spi3d] + lut_extract = Process(description='extract a 3d LUT', + cmd='ociolutimage', + args=args) + lut_extract.execute() + + # Convert to a different format + args = ['--lut', + output_path_spi3d, + '--format', + format, + output_path] + lut_convert = Process(description='convert a 3d LUT', + cmd='ociobakelut', + args=args) + lut_convert.execute() def apply_CTL_to_image(input_image, @@ -374,17 +543,39 @@ def apply_CTL_to_image(input_image, global_params=None, aces_ctl_directory=None): """ - Object description. + Applies a set of Academy Color Transformation Language .ctl files to + an input image and writes a new image. + Relies on the ACES ctlrender command Parameters ---------- - parameter : type - Parameter description. + input_image : str or unicode + The path to the image to transform using the CTL files + output_image : str or unicode + The path to write the result of the transforms + ctl_paths : array of str or unicode, optional + The path to write the result of the transforms + input_scale : float, optional + The argument to the ctlrender -input_scale parameter + For images with integer bit depths, this divides image code values + before they are sent to the ctl commands + For images with float or half bit depths, this multiplies image code + values before they are sent to the ctl commands + output_scale : float, optional + The argument to the ctlrender -output_scale parameter + For images with integer bit depths, this multiplies image code values + before they are written to a file. + For images with float or half bit depths, this divides image code values + before they are sent to the ctl commands + global_params : dict of key value pairs, optional + The set of parameter names and values to pass to the ctlrender + -global_param1 parameter + aces_ctl_directory : str or unicode, optional + The path to the aces 'transforms/ctl/utilities' Returns ------- - type - Return value description. + None """ if ctl_paths is None: @@ -394,6 +585,10 @@ def apply_CTL_to_image(input_image, if len(ctl_paths) > 0: ctlenv = os.environ + + if "/usr/local/bin" not in ctlenv['PATH'].split(':'): + ctlenv['PATH'] = "%s:/usr/local/bin" % ctlenv['PATH'] + if aces_ctl_directory is not None: if os.path.split(aces_ctl_directory)[1] != 'utilities': ctl_module_path = os.path.join(aces_ctl_directory, 'utilities') @@ -422,17 +617,22 @@ def apply_CTL_to_image(input_image, def convert_bit_depth(input_image, output_image, depth): """ - Object description. + Convert the input image to the specified bit depth and write a new image + Relies on the OIIO oiiotool command Parameters ---------- - parameter : type - Parameter description. + input_image : str or unicode + The path to the image to transform using the CTL files + output_image : str or unicode + The path to write the result of the transforms + depth : str or unicode + The bit depth of the output image + Data types include: uint8, sint8, uint10, uint12, uint16, sint16, half, float, double Returns ------- - type - Return value description. + None """ args = [input_image, @@ -449,7 +649,7 @@ def convert_bit_depth(input_image, output_image, depth): def generate_1d_LUT_from_CTL(lut_path, ctl_paths, lut_resolution=1024, - identity_LUT_bit_depth='half', + identity_lut_bit_depth='half', input_scale=1, output_scale=1, global_params=None, @@ -460,17 +660,51 @@ def generate_1d_LUT_from_CTL(lut_path, channels=3, format='spi1d'): """ - Object description. + Creates a 1D LUT from the specified CTL files by creating a 1D LUT image, + applying the CTL files and then extracting and writing a LUT based on the + resulting image Parameters ---------- - parameter : type - Parameter description. + lut_path : str or unicode + The path to write the 1D LUT + ctl_paths : array of str or unicode + The CTL files to apply + lut_resolution : int, optional + The resolution of the 1D LUT to generate + identity_lut_bit_depth : string, optional + The bit depth to use for the intermediate 1D LUT image + input_scale : float, optional + The argument to the ctlrender -input_scale parameter + For images with integer bit depths, this divides image code values + before they are sent to the ctl commands + For images with float or half bit depths, this multiplies image code + values before they are sent to the ctl commands + output_scale : float, optional + The argument to the ctlrender -output_scale parameter + For images with integer bit depths, this multiplies image code values + before they are written to a file. + For images with float or half bit depths, this divides image code values + before they are sent to the ctl commands + global_params : dict of key, value pairs, optional + The set of parameter names and values to pass to the ctlrender + -global_param1 parameter + cleanup : bool, optional + Whether or not to clean up the intermediate images + aces_ctl_directory : str or unicode, optional + The path to the aces 'transforms/ctl/utilities' + min_value : float, optional + The minimum value to consider as input to the LUT + max_value : float, optional + The maximum value to consider as input to the LUT + channels : int, optional + The number of channels to use for the LUT. 1 or 3 are valid. + format : str or unicode, optional + The format to use when writing the LUT Returns ------- - type - Return value description. + None """ if global_params is None: @@ -478,30 +712,30 @@ def generate_1d_LUT_from_CTL(lut_path, lut_path_base = os.path.splitext(lut_path)[0] - identity_LUT_image_float = '%s.%s.%s' % (lut_path_base, 'float', 'tiff') - generate_1d_LUT_image(identity_LUT_image_float, + identity_lut_image_float = '%s.%s.%s' % (lut_path_base, 'float', 'tiff') + generate_1d_LUT_image(identity_lut_image_float, lut_resolution, min_value, max_value) - if identity_LUT_bit_depth not in ['half', 'float']: - identity_LUT_image = '%s.%s.%s' % (lut_path_base, 'uint16', 'tiff') - convert_bit_depth(identity_LUT_image_float, - identity_LUT_image, - identity_LUT_bit_depth) + if identity_lut_bit_depth not in ['half', 'float']: + identity_lut_image = '%s.%s.%s' % (lut_path_base, 'uint16', 'tiff') + convert_bit_depth(identity_lut_image_float, + identity_lut_image, + identity_lut_bit_depth) else: - identity_LUT_image = identity_LUT_image_float + identity_lut_image = identity_lut_image_float - transformed_LUT_image = '%s.%s.%s' % (lut_path_base, 'transformed', 'exr') - apply_CTL_to_image(identity_LUT_image, - transformed_LUT_image, + transformed_lut_image = '%s.%s.%s' % (lut_path_base, 'transformed', 'exr') + apply_CTL_to_image(identity_lut_image, + transformed_lut_image, ctl_paths, input_scale, output_scale, global_params, aces_ctl_directory) - generate_1d_LUT_from_image(transformed_LUT_image, + generate_1d_LUT_from_image(transformed_lut_image, lut_path, min_value, max_value, @@ -509,30 +743,40 @@ def generate_1d_LUT_from_CTL(lut_path, format) if cleanup: - os.remove(identity_LUT_image) - if identity_LUT_image != identity_LUT_image_float: - os.remove(identity_LUT_image_float) - os.remove(transformed_LUT_image) + os.remove(identity_lut_image) + if identity_lut_image != identity_lut_image_float: + os.remove(identity_lut_image_float) + os.remove(transformed_lut_image) -def correct_LUT_image(transformed_LUT_image, - corrected_LUT_image, +def correct_LUT_image(transformed_lut_image, + corrected_lut_image, lut_resolution): """ - Object description. + For some combinations of resolution and bit depth, ctlrender would generate + images with the right number of pixels but with the values for width and + height transposed. This function generating a new, corrected image based on + the original. The function acts as a pass through if the problem is not + detected. Parameters ---------- - parameter : type - Parameter description. + transformed_lut_image : str or unicode + The path to an image generated by cltrender + corrected_lut_image : str or unicode + The path to an 'corrected' image to be generated + lut_resolution : int + The resolution of the 3D LUT that should be contained in + transformed_lut_image Returns ------- - type - Return value description. + str or unicode + The path to the corrected image, or the original, if no correction was + needed. """ - transformed = oiio.ImageInput.open(transformed_LUT_image) + transformed = oiio.ImageInput.open(transformed_lut_image) transformed_spec = transformed.spec() width = transformed_spec.width @@ -546,14 +790,14 @@ def correct_LUT_image(transformed_LUT_image, height, lut_resolution * lut_resolution, lut_resolution)) - print('Generating %s' % corrected_LUT_image) + print('Generating %s' % corrected_lut_image) # Forcibly read data as float, the Python API doesn't handle half-float # well yet. type = oiio.FLOAT source_data = transformed.read_image(type) - correct = oiio.ImageOutput.create(corrected_LUT_image) + correct = oiio.ImageOutput.create(corrected_lut_image) correct_spec = oiio.ImageSpec() correct_spec.set_format(oiio.FLOAT) @@ -561,7 +805,7 @@ def correct_LUT_image(transformed_LUT_image, correct_spec.height = width correct_spec.nchannels = channels - correct.open(corrected_LUT_image, correct_spec, oiio.Create) + correct.open(corrected_lut_image, correct_spec, oiio.Create) dest_data = array.array('f', ('\0' * correct_spec.width * @@ -581,17 +825,17 @@ def correct_LUT_image(transformed_LUT_image, correct.close() else: # shutil.copy(transformedLUTImage, correctedLUTImage) - corrected_LUT_image = transformed_LUT_image + corrected_lut_image = transformed_lut_image transformed.close() - return corrected_LUT_image + return corrected_lut_image def generate_3d_LUT_from_CTL(lut_path, ctl_paths, lut_resolution=64, - identity_LUT_bit_depth='half', + identity_lut_bit_depth='half', input_scale=1, output_scale=1, global_params=None, @@ -599,17 +843,45 @@ def generate_3d_LUT_from_CTL(lut_path, aces_ctl_directory=None, format='spi3d'): """ - Object description. + Creates a 3D LUT from the specified CTL files by creating a 3D LUT image, + applying the CTL files and then extracting and writing a LUT based on the + resulting image Parameters ---------- - parameter : type - Parameter description. + lut_path : str or unicode + The path to write the 1D LUT + ctl_paths : array of str or unicode + The CTL files to apply + lut_resolution : int, optional + The resolution of the 1D LUT to generate + identity_lut_bit_depth : string, optional + The bit depth to use for the intermediate 1D LUT image + input_scale : float, optional + The argument to the ctlrender -input_scale parameter + For images with integer bit depths, this divides image code values + before they are sent to the ctl commands + For images with float or half bit depths, this multiplies image code + values before they are sent to the ctl commands + output_scale : float, optional + The argument to the ctlrender -output_scale parameter + For images with integer bit depths, this multiplies image code values + before they are written to a file. + For images with float or half bit depths, this divides image code values + before they are sent to the ctl commands + global_params : dict of key, value pairs, optional + The set of parameter names and values to pass to the ctlrender + -global_param1 parameter + cleanup : bool, optional + Whether or not to clean up the intermediate images + aces_ctl_directory : str or unicode, optional + The path to the aces 'transforms/ctl/utilities' + format : str or unicode, optional + The format to use when writing the LUT Returns ------- - type - Return value description. + None """ if global_params is None: @@ -617,62 +889,62 @@ def generate_3d_LUT_from_CTL(lut_path, lut_path_base = os.path.splitext(lut_path)[0] - identity_LUT_image_float = '%s.%s.%s' % (lut_path_base, 'float', 'tiff') - generate_3d_LUT_image(identity_LUT_image_float, lut_resolution) + identity_lut_image_float = '%s.%s.%s' % (lut_path_base, 'float', 'tiff') + generate_3d_LUT_image(identity_lut_image_float, lut_resolution) - if identity_LUT_bit_depth not in ['half', 'float']: - identity_LUT_image = '%s.%s.%s' % (lut_path_base, - identity_LUT_bit_depth, + if identity_lut_bit_depth not in ['half', 'float']: + identity_lut_image = '%s.%s.%s' % (lut_path_base, + identity_lut_bit_depth, 'tiff') - convert_bit_depth(identity_LUT_image_float, - identity_LUT_image, - identity_LUT_bit_depth) + convert_bit_depth(identity_lut_image_float, + identity_lut_image, + identity_lut_bit_depth) else: - identity_LUT_image = identity_LUT_image_float + identity_lut_image = identity_lut_image_float - transformed_LUT_image = '%s.%s.%s' % (lut_path_base, 'transformed', 'exr') - apply_CTL_to_image(identity_LUT_image, - transformed_LUT_image, + transformed_lut_image = '%s.%s.%s' % (lut_path_base, 'transformed', 'exr') + apply_CTL_to_image(identity_lut_image, + transformed_lut_image, ctl_paths, input_scale, output_scale, global_params, aces_ctl_directory) - corrected_LUT_image = '%s.%s.%s' % (lut_path_base, 'correct', 'exr') - corrected_LUT_image = correct_LUT_image(transformed_LUT_image, - corrected_LUT_image, + corrected_lut_image = '%s.%s.%s' % (lut_path_base, 'correct', 'exr') + corrected_lut_image = correct_LUT_image(transformed_lut_image, + corrected_lut_image, lut_resolution) - generate_3d_LUT_from_image(corrected_LUT_image, - lut_path, - lut_resolution, + generate_3d_LUT_from_image(corrected_lut_image, + lut_path, + lut_resolution, format) if cleanup: - os.remove(identity_LUT_image) - if identity_LUT_image != identity_LUT_image_float: - os.remove(identity_LUT_image_float) - os.remove(transformed_LUT_image) - if corrected_LUT_image != transformed_LUT_image: - os.remove(corrected_LUT_image) + os.remove(identity_lut_image) + if identity_lut_image != identity_lut_image_float: + os.remove(identity_lut_image_float) + os.remove(transformed_lut_image) + if corrected_lut_image != transformed_lut_image: + os.remove(corrected_lut_image) if format != 'spi3d': lut_path_spi3d = '%s.%s' % (lut_path, 'spi3d') os.remove(lut_path_spi3d) + def main(): """ - Object description. + A simple main that allows the user to exercise the various functions + defined in this file Parameters ---------- - parameter : type - Parameter description. + None Returns ------- - type - Return value description. + None """ import optparse @@ -723,31 +995,24 @@ def main(): for param in options.ctlRenderParam: params[param[0]] = float(param[1]) - try: - args_start = sys.argv.index('--') + 1 - args = sys.argv[args_start:] - except: - args_start = len(sys.argv) + 1 - args = [] - if generate_1d: print('1D LUT generation options') else: print('3D LUT generation options') - print('lut : %s' % lut) - print('format : %s' % format) - print('ctls : %s' % ctls) - print('lut res 1d : %s' % lut_resolution_1d) - print('lut res 3d : %s' % lut_resolution_3d) - print('min value : %s' % min_value) - print('max value : %s' % max_value) - print('input scale : %s' % input_scale) - print('output scale : %s' % output_scale) - print('ctl render params : %s' % params) - print('ctl release path : %s' % ctl_release_path) - print('bit depth of input : %s' % bit_depth) - print('cleanup temp images : %s' % cleanup) + print('LUT : %s' % lut) + print('Format : %s' % format) + print('CTLs : %s' % ctls) + print('LUT Res 1d : %s' % lut_resolution_1d) + print('LUT Res 3d : %s' % lut_resolution_3d) + print('Min Value : %s' % min_value) + print('Max Value : %s' % max_value) + print('Input Scale : %s' % input_scale) + print('Output Scale : %s' % output_scale) + print('CTL Render Params : %s' % params) + print('CTL Release Path : %s' % ctl_release_path) + print('Input Bit Depth : %s' % bit_depth) + print('Cleanup Temp Images : %s' % cleanup) if generate_1d: generate_1d_LUT_from_CTL(lut, @@ -775,10 +1040,9 @@ def main(): ctl_release_path, format=format) else: - print(('\n\nNo LUT generated. ' + print(('\n\nNo LUT generated! ' 'You must choose either 1D or 3D LUT generation\n\n')) if __name__ == '__main__': main() -