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This commit is contained in:
hugovk
parent
a97e5039d8
commit
27d49b6f27
225
PIL/ImageCms.py
225
PIL/ImageCms.py
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@ -66,7 +66,8 @@ pyCMS
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Added try/except statements arount type() checks of
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potential CObjects... Python won't let you use type()
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on them, and raises a TypeError (stupid, if you ask me!)
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on them, and raises a TypeError (stupid, if you ask
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me!)
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Added buildProofTransformFromOpenProfiles() function.
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Additional fixes in DLL, see DLL code for details.
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@ -115,7 +116,9 @@ FLAGS = {
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"MATRIXOUTPUT": 2,
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"MATRIXONLY": (1 | 2),
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"NOWHITEONWHITEFIXUP": 4, # Don't hot fix scum dot
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"NOPRELINEARIZATION": 16, # Don't create prelinearization tables on precalculated transforms (internal use)
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# Don't create prelinearization tables on precalculated transforms
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# (internal use):
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"NOPRELINEARIZATION": 16,
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"GUESSDEVICECLASS": 32, # Guess device class (for transform2devicelink)
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"NOTCACHE": 64, # Inhibit 1-pixel cache
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"NOTPRECALC": 256,
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@ -168,13 +171,14 @@ class ImageCmsProfile:
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class ImageCmsTransform(Image.ImagePointHandler):
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"""Transform. This can be used with the procedural API, or with the
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standard Image.point() method.
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"""
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def __init__(self, input, output, input_mode, output_mode,
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intent=INTENT_PERCEPTUAL,
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proof=None, proof_intent=INTENT_ABSOLUTE_COLORIMETRIC, flags=0):
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intent=INTENT_PERCEPTUAL, proof=None,
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proof_intent=INTENT_ABSOLUTE_COLORIMETRIC, flags=0):
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if proof is None:
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self.transform = core.buildTransform(
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input.profile, output.profile,
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@ -238,11 +242,15 @@ def get_display_profile(handle=None):
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# --------------------------------------------------------------------.
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class PyCMSError(Exception):
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""" (pyCMS) Exception class. This is used for all errors in the pyCMS API. """
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""" (pyCMS) Exception class.
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This is used for all errors in the pyCMS API. """
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pass
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def profileToProfile(im, inputProfile, outputProfile, renderingIntent=INTENT_PERCEPTUAL, outputMode=None, inPlace=0, flags=0):
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def profileToProfile(
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im, inputProfile, outputProfile, renderingIntent=INTENT_PERCEPTUAL,
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outputMode=None, inPlace=0, flags=0):
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"""
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(pyCMS) Applies an ICC transformation to a given image, mapping from
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inputProfile to outputProfile.
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@ -264,29 +272,33 @@ def profileToProfile(im, inputProfile, outputProfile, renderingIntent=INTENT_PER
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profiles, the input profile must handle RGB data, and the output
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profile must handle CMYK data.
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:param im: An open PIL image object (i.e. Image.new(...) or Image.open(...), etc.)
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:param inputProfile: String, as a valid filename path to the ICC input profile
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you wish to use for this image, or a profile object
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:param im: An open PIL image object (i.e. Image.new(...) or
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Image.open(...), etc.)
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:param inputProfile: String, as a valid filename path to the ICC input
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profile you wish to use for this image, or a profile object
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:param outputProfile: String, as a valid filename path to the ICC output
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profile you wish to use for this image, or a profile object
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:param renderingIntent: Integer (0-3) specifying the rendering intent you wish
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to use for the transform
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:param renderingIntent: Integer (0-3) specifying the rendering intent you
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wish to use for the transform
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INTENT_PERCEPTUAL = 0 (DEFAULT) (ImageCms.INTENT_PERCEPTUAL)
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INTENT_RELATIVE_COLORIMETRIC = 1 (ImageCms.INTENT_RELATIVE_COLORIMETRIC)
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INTENT_SATURATION = 2 (ImageCms.INTENT_SATURATION)
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INTENT_ABSOLUTE_COLORIMETRIC = 3 (ImageCms.INTENT_ABSOLUTE_COLORIMETRIC)
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see the pyCMS documentation for details on rendering intents and what they do.
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:param outputMode: A valid PIL mode for the output image (i.e. "RGB", "CMYK",
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etc.). Note: if rendering the image "inPlace", outputMode MUST be the
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same mode as the input, or omitted completely. If omitted, the outputMode
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will be the same as the mode of the input image (im.mode)
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:param inPlace: Boolean (1 = True, None or 0 = False). If True, the original
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image is modified in-place, and None is returned. If False (default), a
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new Image object is returned with the transform applied.
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see the pyCMS documentation for details on rendering intents and what
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they do.
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:param outputMode: A valid PIL mode for the output image (i.e. "RGB",
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"CMYK", etc.). Note: if rendering the image "inPlace", outputMode
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MUST be the same mode as the input, or omitted completely. If
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omitted, the outputMode will be the same as the mode of the input
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image (im.mode)
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:param inPlace: Boolean (1 = True, None or 0 = False). If True, the
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original image is modified in-place, and None is returned. If False
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(default), a new Image object is returned with the transform applied.
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:param flags: Integer (0-...) specifying additional flags
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:returns: Either None or a new PIL image object, depending on value of inPlace
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:returns: Either None or a new PIL image object, depending on value of
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inPlace
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:exception PyCMSError:
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"""
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@ -297,7 +309,8 @@ def profileToProfile(im, inputProfile, outputProfile, renderingIntent=INTENT_PER
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raise PyCMSError("renderingIntent must be an integer between 0 and 3")
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if not isinstance(flags, int) or not (0 <= flags <= _MAX_FLAG):
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raise PyCMSError("flags must be an integer between 0 and %s" + _MAX_FLAG)
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raise PyCMSError(
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"flags must be an integer between 0 and %s" + _MAX_FLAG)
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try:
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if not isinstance(inputProfile, ImageCmsProfile):
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@ -329,8 +342,8 @@ def getOpenProfile(profileFilename):
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If profileFilename is not a vaild filename for an ICC profile, a PyCMSError
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will be raised.
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:param profileFilename: String, as a valid filename path to the ICC profile you
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wish to open, or a file-like object.
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:param profileFilename: String, as a valid filename path to the ICC profile
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you wish to open, or a file-like object.
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:returns: A CmsProfile class object.
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:exception PyCMSError:
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"""
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@ -341,7 +354,9 @@ def getOpenProfile(profileFilename):
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raise PyCMSError(v)
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def buildTransform(inputProfile, outputProfile, inMode, outMode, renderingIntent=INTENT_PERCEPTUAL, flags=0):
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def buildTransform(
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inputProfile, outputProfile, inMode, outMode,
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renderingIntent=INTENT_PERCEPTUAL, flags=0):
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"""
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(pyCMS) Builds an ICC transform mapping from the inputProfile to the
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outputProfile. Use applyTransform to apply the transform to a given
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@ -374,14 +389,14 @@ def buildTransform(inputProfile, outputProfile, inMode, outMode, renderingIntent
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manually overridden if you really want to, but I don't know of any
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time that would be of use, or would even work).
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:param inputProfile: String, as a valid filename path to the ICC input profile
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you wish to use for this transform, or a profile object
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:param inputProfile: String, as a valid filename path to the ICC input
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profile you wish to use for this transform, or a profile object
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:param outputProfile: String, as a valid filename path to the ICC output
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profile you wish to use for this transform, or a profile object
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:param inMode: String, as a valid PIL mode that the appropriate profile also
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supports (i.e. "RGB", "RGBA", "CMYK", etc.)
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:param outMode: String, as a valid PIL mode that the appropriate profile also
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supports (i.e. "RGB", "RGBA", "CMYK", etc.)
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:param inMode: String, as a valid PIL mode that the appropriate profile
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also supports (i.e. "RGB", "RGBA", "CMYK", etc.)
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:param outMode: String, as a valid PIL mode that the appropriate profile
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also supports (i.e. "RGB", "RGBA", "CMYK", etc.)
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:param renderingIntent: Integer (0-3) specifying the rendering intent you
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wish to use for the transform
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@ -390,7 +405,8 @@ def buildTransform(inputProfile, outputProfile, inMode, outMode, renderingIntent
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INTENT_SATURATION = 2 (ImageCms.INTENT_SATURATION)
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INTENT_ABSOLUTE_COLORIMETRIC = 3 (ImageCms.INTENT_ABSOLUTE_COLORIMETRIC)
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see the pyCMS documentation for details on rendering intents and what they do.
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see the pyCMS documentation for details on rendering intents and what
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they do.
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:param flags: Integer (0-...) specifying additional flags
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:returns: A CmsTransform class object.
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:exception PyCMSError:
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@ -400,19 +416,26 @@ def buildTransform(inputProfile, outputProfile, inMode, outMode, renderingIntent
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raise PyCMSError("renderingIntent must be an integer between 0 and 3")
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if not isinstance(flags, int) or not (0 <= flags <= _MAX_FLAG):
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raise PyCMSError("flags must be an integer between 0 and %s" + _MAX_FLAG)
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raise PyCMSError(
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"flags must be an integer between 0 and %s" + _MAX_FLAG)
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try:
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if not isinstance(inputProfile, ImageCmsProfile):
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inputProfile = ImageCmsProfile(inputProfile)
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if not isinstance(outputProfile, ImageCmsProfile):
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outputProfile = ImageCmsProfile(outputProfile)
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return ImageCmsTransform(inputProfile, outputProfile, inMode, outMode, renderingIntent, flags=flags)
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return ImageCmsTransform(
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inputProfile, outputProfile, inMode, outMode,
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renderingIntent, flags=flags)
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except (IOError, TypeError, ValueError) as v:
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raise PyCMSError(v)
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def buildProofTransform(inputProfile, outputProfile, proofProfile, inMode, outMode, renderingIntent=INTENT_PERCEPTUAL, proofRenderingIntent=INTENT_ABSOLUTE_COLORIMETRIC, flags=FLAGS["SOFTPROOFING"]):
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def buildProofTransform(
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inputProfile, outputProfile, proofProfile, inMode, outMode,
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renderingIntent=INTENT_PERCEPTUAL,
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proofRenderingIntent=INTENT_ABSOLUTE_COLORIMETRIC,
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flags=FLAGS["SOFTPROOFING"]):
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"""
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(pyCMS) Builds an ICC transform mapping from the inputProfile to the
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outputProfile, but tries to simulate the result that would be
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@ -451,17 +474,17 @@ def buildProofTransform(inputProfile, outputProfile, proofProfile, inMode, outMo
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when the simulated device has a much wider gamut than the output
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device, you may obtain marginal results.
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:param inputProfile: String, as a valid filename path to the ICC input profile
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you wish to use for this transform, or a profile object
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:param inputProfile: String, as a valid filename path to the ICC input
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profile you wish to use for this transform, or a profile object
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:param outputProfile: String, as a valid filename path to the ICC output
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(monitor, usually) profile you wish to use for this transform, or a
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profile object
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:param proofProfile: String, as a valid filename path to the ICC proof profile
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you wish to use for this transform, or a profile object
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:param inMode: String, as a valid PIL mode that the appropriate profile also
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supports (i.e. "RGB", "RGBA", "CMYK", etc.)
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:param outMode: String, as a valid PIL mode that the appropriate profile also
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supports (i.e. "RGB", "RGBA", "CMYK", etc.)
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:param proofProfile: String, as a valid filename path to the ICC proof
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profile you wish to use for this transform, or a profile object
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:param inMode: String, as a valid PIL mode that the appropriate profile
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also supports (i.e. "RGB", "RGBA", "CMYK", etc.)
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:param outMode: String, as a valid PIL mode that the appropriate profile
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also supports (i.e. "RGB", "RGBA", "CMYK", etc.)
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:param renderingIntent: Integer (0-3) specifying the rendering intent you
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wish to use for the input->proof (simulated) transform
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@ -470,7 +493,8 @@ def buildProofTransform(inputProfile, outputProfile, proofProfile, inMode, outMo
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INTENT_SATURATION = 2 (ImageCms.INTENT_SATURATION)
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INTENT_ABSOLUTE_COLORIMETRIC = 3 (ImageCms.INTENT_ABSOLUTE_COLORIMETRIC)
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see the pyCMS documentation for details on rendering intents and what they do.
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see the pyCMS documentation for details on rendering intents and what
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they do.
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:param proofRenderingIntent: Integer (0-3) specifying the rendering intent you
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wish to use for proof->output transform
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@ -479,7 +503,8 @@ def buildProofTransform(inputProfile, outputProfile, proofProfile, inMode, outMo
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INTENT_SATURATION = 2 (ImageCms.INTENT_SATURATION)
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INTENT_ABSOLUTE_COLORIMETRIC = 3 (ImageCms.INTENT_ABSOLUTE_COLORIMETRIC)
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see the pyCMS documentation for details on rendering intents and what they do.
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see the pyCMS documentation for details on rendering intents and what
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they do.
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:param flags: Integer (0-...) specifying additional flags
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:returns: A CmsTransform class object.
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:exception PyCMSError:
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@ -489,7 +514,8 @@ def buildProofTransform(inputProfile, outputProfile, proofProfile, inMode, outMo
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raise PyCMSError("renderingIntent must be an integer between 0 and 3")
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if not isinstance(flags, int) or not (0 <= flags <= _MAX_FLAG):
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raise PyCMSError("flags must be an integer between 0 and %s" + _MAX_FLAG)
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raise PyCMSError(
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"flags must be an integer between 0 and %s" + _MAX_FLAG)
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try:
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if not isinstance(inputProfile, ImageCmsProfile):
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@ -498,7 +524,9 @@ def buildProofTransform(inputProfile, outputProfile, proofProfile, inMode, outMo
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outputProfile = ImageCmsProfile(outputProfile)
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if not isinstance(proofProfile, ImageCmsProfile):
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proofProfile = ImageCmsProfile(proofProfile)
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return ImageCmsTransform(inputProfile, outputProfile, inMode, outMode, renderingIntent, proofProfile, proofRenderingIntent, flags)
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return ImageCmsTransform(
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inputProfile, outputProfile, inMode, outMode, renderingIntent,
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proofProfile, proofRenderingIntent, flags)
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except (IOError, TypeError, ValueError) as v:
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raise PyCMSError(v)
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@ -523,8 +551,8 @@ def applyTransform(im, transform, inPlace=0):
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is raised.
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This function applies a pre-calculated transform (from
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ImageCms.buildTransform() or ImageCms.buildTransformFromOpenProfiles()) to an
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image. The transform can be used for multiple images, saving
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ImageCms.buildTransform() or ImageCms.buildTransformFromOpenProfiles())
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to an image. The transform can be used for multiple images, saving
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considerable calcuation time if doing the same conversion multiple times.
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If you want to modify im in-place instead of receiving a new image as
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@ -537,10 +565,12 @@ def applyTransform(im, transform, inPlace=0):
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:param im: A PIL Image object, and im.mode must be the same as the inMode
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supported by the transform.
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:param transform: A valid CmsTransform class object
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:param inPlace: Bool (1 == True, 0 or None == False). If True, im is modified
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in place and None is returned, if False, a new Image object with the
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transform applied is returned (and im is not changed). The default is False.
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:returns: Either None, or a new PIL Image object, depending on the value of inPlace
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:param inPlace: Bool (1 == True, 0 or None == False). If True, im is
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modified in place and None is returned, if False, a new Image object
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with the transform applied is returned (and im is not changed). The
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default is False.
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:returns: Either None, or a new PIL Image object, depending on the value of
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inPlace
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:exception PyCMSError:
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"""
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@ -572,24 +602,29 @@ def createProfile(colorSpace, colorTemp=-1):
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ImageCms.buildTransformFromOpenProfiles() to create a transform to apply
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to images.
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:param colorSpace: String, the color space of the profile you wish to create.
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:param colorSpace: String, the color space of the profile you wish to
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create.
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Currently only "LAB", "XYZ", and "sRGB" are supported.
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:param colorTemp: Positive integer for the white point for the profile, in
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degrees Kelvin (i.e. 5000, 6500, 9600, etc.). The default is for D50
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illuminant if omitted (5000k). colorTemp is ONLY applied to LAB profiles,
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and is ignored for XYZ and sRGB.
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illuminant if omitted (5000k). colorTemp is ONLY applied to LAB
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profiles, and is ignored for XYZ and sRGB.
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:returns: A CmsProfile class object
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:exception PyCMSError:
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"""
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if colorSpace not in ["LAB", "XYZ", "sRGB"]:
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raise PyCMSError("Color space not supported for on-the-fly profile creation (%s)" % colorSpace)
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raise PyCMSError(
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"Color space not supported for on-the-fly profile creation (%s)"
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% colorSpace)
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if colorSpace == "LAB":
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try:
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colorTemp = float(colorTemp)
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except:
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raise PyCMSError("Color temperature must be numeric, \"%s\" not valid" % colorTemp)
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raise PyCMSError(
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"Color temperature must be numeric, \"%s\" not valid"
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% colorTemp)
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try:
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return core.createProfile(colorSpace, colorTemp)
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|
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@ -611,10 +646,10 @@ def getProfileName(profile):
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profile was originally created. Sometimes this tag also contains
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additional information supplied by the creator.
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:param profile: EITHER a valid CmsProfile object, OR a string of the filename
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of an ICC profile.
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:returns: A string containing the internal name of the profile as stored in an
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ICC tag.
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:param profile: EITHER a valid CmsProfile object, OR a string of the
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filename of an ICC profile.
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:returns: A string containing the internal name of the profile as stored
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in an ICC tag.
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:exception PyCMSError:
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"""
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|
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@ -653,10 +688,10 @@ def getProfileInfo(profile):
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info tag. This often contains details about the profile, and how it
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was created, as supplied by the creator.
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:param profile: EITHER a valid CmsProfile object, OR a string of the filename
|
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of an ICC profile.
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:returns: A string containing the internal profile information stored in an ICC
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tag.
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:param profile: EITHER a valid CmsProfile object, OR a string of the
|
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filename of an ICC profile.
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:returns: A string containing the internal profile information stored in
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an ICC tag.
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:exception PyCMSError:
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"""
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@ -664,7 +699,8 @@ def getProfileInfo(profile):
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if not isinstance(profile, ImageCmsProfile):
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profile = ImageCmsProfile(profile)
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# add an extra newline to preserve pyCMS compatibility
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# Python, not C. the white point bits weren't working well, so skipping.
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# Python, not C. the white point bits weren't working well,
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# so skipping.
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# // info was description \r\n\r\n copyright \r\n\r\n K007 tag \r\n\r\n whitepoint
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description = profile.profile.product_description
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cpright = profile.profile.product_copyright
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@ -691,10 +727,10 @@ def getProfileCopyright(profile):
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Use this function to obtain the information stored in the profile's
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copyright tag.
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:param profile: EITHER a valid CmsProfile object, OR a string of the filename
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of an ICC profile.
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:returns: A string containing the internal profile information stored in an ICC
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tag.
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:param profile: EITHER a valid CmsProfile object, OR a string of the
|
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filename of an ICC profile.
|
||||
:returns: A string containing the internal profile information stored in
|
||||
an ICC tag.
|
||||
:exception PyCMSError:
|
||||
"""
|
||||
try:
|
||||
|
|
@ -713,16 +749,16 @@ def getProfileManufacturer(profile):
|
|||
If profile isn't a valid CmsProfile object or filename to a profile,
|
||||
a PyCMSError is raised.
|
||||
|
||||
If an error occurs while trying to obtain the manufacturer tag, a PyCMSError
|
||||
is raised
|
||||
If an error occurs while trying to obtain the manufacturer tag, a
|
||||
PyCMSError is raised
|
||||
|
||||
Use this function to obtain the information stored in the profile's
|
||||
manufacturer tag.
|
||||
|
||||
:param profile: EITHER a valid CmsProfile object, OR a string of the filename
|
||||
of an ICC profile.
|
||||
:returns: A string containing the internal profile information stored in an ICC
|
||||
tag.
|
||||
:param profile: EITHER a valid CmsProfile object, OR a string of the
|
||||
filename of an ICC profile.
|
||||
:returns: A string containing the internal profile information stored in
|
||||
an ICC tag.
|
||||
:exception PyCMSError:
|
||||
"""
|
||||
try:
|
||||
|
|
@ -747,10 +783,10 @@ def getProfileModel(profile):
|
|||
Use this function to obtain the information stored in the profile's
|
||||
model tag.
|
||||
|
||||
:param profile: EITHER a valid CmsProfile object, OR a string of the filename
|
||||
of an ICC profile.
|
||||
:returns: A string containing the internal profile information stored in an ICC
|
||||
tag.
|
||||
:param profile: EITHER a valid CmsProfile object, OR a string of the
|
||||
filename of an ICC profile.
|
||||
:returns: A string containing the internal profile information stored in
|
||||
an ICC tag.
|
||||
:exception PyCMSError:
|
||||
"""
|
||||
|
||||
|
|
@ -776,10 +812,10 @@ def getProfileDescription(profile):
|
|||
Use this function to obtain the information stored in the profile's
|
||||
description tag.
|
||||
|
||||
:param profile: EITHER a valid CmsProfile object, OR a string of the filename
|
||||
of an ICC profile.
|
||||
:returns: A string containing the internal profile information stored in an ICC
|
||||
tag.
|
||||
:param profile: EITHER a valid CmsProfile object, OR a string of the
|
||||
filename of an ICC profile.
|
||||
:returns: A string containing the internal profile information stored in an
|
||||
ICC tag.
|
||||
:exception PyCMSError:
|
||||
"""
|
||||
|
||||
|
|
@ -808,16 +844,18 @@ def getDefaultIntent(profile):
|
|||
If you wish to use a different intent than returned, use
|
||||
ImageCms.isIntentSupported() to verify it will work first.
|
||||
|
||||
:param profile: EITHER a valid CmsProfile object, OR a string of the filename
|
||||
of an ICC profile.
|
||||
:returns: Integer 0-3 specifying the default rendering intent for this profile.
|
||||
:param profile: EITHER a valid CmsProfile object, OR a string of the
|
||||
filename of an ICC profile.
|
||||
:returns: Integer 0-3 specifying the default rendering intent for this
|
||||
profile.
|
||||
|
||||
INTENT_PERCEPTUAL = 0 (DEFAULT) (ImageCms.INTENT_PERCEPTUAL)
|
||||
INTENT_RELATIVE_COLORIMETRIC = 1 (ImageCms.INTENT_RELATIVE_COLORIMETRIC)
|
||||
INTENT_SATURATION = 2 (ImageCms.INTENT_SATURATION)
|
||||
INTENT_ABSOLUTE_COLORIMETRIC = 3 (ImageCms.INTENT_ABSOLUTE_COLORIMETRIC)
|
||||
|
||||
see the pyCMS documentation for details on rendering intents and what they do.
|
||||
see the pyCMS documentation for details on rendering intents and what
|
||||
they do.
|
||||
:exception PyCMSError:
|
||||
"""
|
||||
|
||||
|
|
@ -844,17 +882,18 @@ def isIntentSupported(profile, intent, direction):
|
|||
potential PyCMSError that will occur if they don't support the modes
|
||||
you select.
|
||||
|
||||
:param profile: EITHER a valid CmsProfile object, OR a string of the filename
|
||||
of an ICC profile.
|
||||
:param intent: Integer (0-3) specifying the rendering intent you wish to use
|
||||
with this profile
|
||||
:param profile: EITHER a valid CmsProfile object, OR a string of the
|
||||
filename of an ICC profile.
|
||||
:param intent: Integer (0-3) specifying the rendering intent you wish to
|
||||
use with this profile
|
||||
|
||||
INTENT_PERCEPTUAL = 0 (DEFAULT) (ImageCms.INTENT_PERCEPTUAL)
|
||||
INTENT_RELATIVE_COLORIMETRIC = 1 (ImageCms.INTENT_RELATIVE_COLORIMETRIC)
|
||||
INTENT_SATURATION = 2 (ImageCms.INTENT_SATURATION)
|
||||
INTENT_ABSOLUTE_COLORIMETRIC = 3 (ImageCms.INTENT_ABSOLUTE_COLORIMETRIC)
|
||||
|
||||
see the pyCMS documentation for details on rendering intents and what they do.
|
||||
see the pyCMS documentation for details on rendering intents and what
|
||||
they do.
|
||||
:param direction: Integer specifing if the profile is to be used for input,
|
||||
output, or proof
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user