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=4ed78fe92fc27abdf5ea3bb0978edd17afb3110b;hpb=1c4efc5c67e2313dfadf4a0786baaabd8d6489a6;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 4ed78fe..94bd735 100755 --- a/aces_1.0.0/python/aces_ocio/generate_lut.py +++ b/aces_1.0.0/python/aces_ocio/generate_lut.py @@ -2,13 +2,14 @@ # -*- 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. """ +from __future__ import division + import array import os -import sys import OpenImageIO as oiio @@ -23,6 +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', @@ -36,20 +40,26 @@ __all__ = ['generate_1d_LUT_image', def generate_1d_LUT_image(ramp_1d_path, resolution=1024, - min_value=0.0, - max_value=1.0): + 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) @@ -76,54 +86,326 @@ 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 + # Most commonly used for single channel LUTs + components = min(3, components, channels) + with open(filename, 'w') as fp: fp.write('Version 1\n') fp.write('From %f %f\n' % (from_min, from_max)) fp.write('Length %d\n' % entries) - fp.write('Components %d\n' % (min(3, channels))) + fp.write('Components %d\n' % components) fp.write('{\n') for i in range(0, entries): entry = '' - for j in range(0, min(3, channels)): + for j in range(0, components): entry = '%s %s' % (entry, data[i * channels + j]) fp.write(' %s\n' % entry) fp.write('}\n') +def write_CSP_1d(filename, + from_min, + from_max, + data, + entries, + channels, + components=3): + """ + Writes a 1D LUT in the Rising Sun Research Cinespace .csp 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('CSPLUTV100\n') + fp.write('1D\n') + fp.write('\n') + fp.write('BEGIN METADATA\n') + fp.write('END METADATA\n') + + fp.write('\n') + + fp.write('2\n') + fp.write('%f %f\n' % (from_min, from_max)) + fp.write('0.0 1.0\n') + fp.write('2\n') + fp.write('%f %f\n' % (from_min, from_max)) + fp.write('0.0 1.0\n') + fp.write('2\n') + fp.write('%f %f\n' % (from_min, from_max)) + fp.write('0.0 1.0\n') + + fp.write('\n') + + 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) + 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) + fp.write('\n') + + +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'): + """ + Writes a 1D LUT in the specified 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 + 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 + ------- + None + """ + + 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) + + def generate_1d_LUT_from_image(ramp_1d_path, output_path=None, - min_value=0.0, - max_value=1.0): + min_value=0, + max_value=1, + 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: @@ -131,31 +413,34 @@ def generate_1d_LUT_from_image(ramp_1d_path, ramp = oiio.ImageInput.open(ramp_1d_path) - spec = ramp.spec() - width = spec.width - channels = spec.nchannels + ramp_spec = ramp.spec() + ramp_width = ramp_spec.width + ramp_channels = ramp_spec.nchannels # Forcibly read data as float, the Python API doesn't handle half-float # well yet. type = oiio.FLOAT - data = ramp.read_image(type) + ramp_data = ramp.read_image(type) - write_SPI_1d(output_path, min_value, max_value, data, width, channels) + 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', @@ -171,58 +456,126 @@ 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, resolution=32): +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, 'spi1d') + output_path = '%s.%s' % (ramp_3d_path, 'spi3d') + + 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() - 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() def apply_CTL_to_image(input_image, output_image, ctl_paths=None, - input_scale=1.0, - output_scale=1.0, + input_scale=1, + output_scale=1, 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: @@ -232,6 +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') @@ -260,17 +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, @@ -287,26 +649,62 @@ 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', - input_scale=1.0, - output_scale=1.0, + identity_lut_bit_depth='half', + input_scale=1, + output_scale=1, global_params=None, cleanup=True, aces_ctl_directory=None, - min_value=0.0, - max_value=1.0): + min_value=0, + max_value=1, + 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: @@ -314,59 +712,71 @@ 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 != 'half': - 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) + max_value, + channels, + 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 @@ -380,14 +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) @@ -395,7 +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 * @@ -415,34 +825,63 @@ 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', - input_scale=1.0, - output_scale=1.0, + identity_lut_bit_depth='half', + input_scale=1, + output_scale=1, global_params=None, cleanup=True, - aces_ctl_directory=None): + 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: @@ -450,57 +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 != 'half': - 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 @@ -512,16 +956,17 @@ def main(): usage='%prog [options]') p.add_option('--lut', '-l', type='string', default='') + p.add_option('--format', '-f', type='string', default='') p.add_option('--ctl', '-c', type='string', action='append') p.add_option('--lutResolution1d', '', type='int', default=1024) p.add_option('--lutResolution3d', '', type='int', default=33) p.add_option('--ctlReleasePath', '-r', type='string', default='') p.add_option('--bitDepth', '-b', type='string', default='float') p.add_option('--keepTempImages', '', action='store_true') - p.add_option('--minValue', '', type='float', default=0.0) - p.add_option('--maxValue', '', type='float', default=1.0) - p.add_option('--inputScale', '', type='float', default=1.0) - p.add_option('--outputScale', '', type='float', default=1.0) + p.add_option('--minValue', '', type='float', default=0) + p.add_option('--maxValue', '', type='float', default=1) + p.add_option('--inputScale', '', type='float', default=1) + p.add_option('--outputScale', '', type='float', default=1) p.add_option('--ctlRenderParam', '-p', type='string', nargs=2, action='append') @@ -531,9 +976,10 @@ def main(): options, arguments = p.parse_args() lut = options.lut + format = options.format ctls = options.ctl - lut_resolution_1d = options.lut_resolution_1d - lut_resolution_3d = options.lut_resolution_3d + lut_resolution_1d = options.lutResolution1d + lut_resolution_3d = options.lutResolution3d min_value = options.minValue max_value = options.maxValue input_scale = options.inputScale @@ -549,30 +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('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, @@ -585,7 +1025,8 @@ def main(): cleanup, ctl_release_path, min_value, - max_value) + max_value, + format=format) elif generate_3d: generate_3d_LUT_from_CTL(lut, @@ -596,12 +1037,12 @@ def main(): output_scale, params, cleanup, - ctl_release_path) + 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() -