ImageCms Module
- CmsProfile

ImageCms Module

The ImageCms module provides color profile managementsupport using the LittleCMS2 color management engine, based on KevinCazabon’s PyCMS library.

class PIL.ImageCms.ImageCmsTransform(input, output, input_mode, output_mode, intent=0, proof=None, proof_intent=3, flags=0)[源代码]
Transform. This can be used with the procedural API, or with the standardImage.point() method.

Will return the output profile in the output.info[‘icc_profile’].

exception PIL.ImageCms.PyCMSError[源代码]
(pyCMS) Exception class.This is used for all errors in the pyCMS API.

PIL.ImageCms.applyTransform(im, transform, inPlace=0)[源代码]
(pyCMS) Applies a transform to a given image.

If im.mode != transform.inMode, a PyCMSError is raised.

If inPlace == TRUE and transform.inMode != transform.outMode, aPyCMSError is raised.

If im.mode, transfer.inMode, or transfer.outMode is not supported bypyCMSdll or the profiles you used for the transform, a PyCMSError israised.

If an error occurs while the transform is being applied, a PyCMSErroris raised.

This function applies a pre-calculated transform (fromImageCms.buildTransform() or ImageCms.buildTransformFromOpenProfiles())to an image. The transform can be used for multiple images, savingconsiderable calculation time if doing the same conversion multiple times.

If you want to modify im in-place instead of receiving a new image asthe return value, set inPlace to TRUE. This can only be done iftransform.inMode and transform.outMode are the same, because we can’tchange the mode in-place (the buffer sizes for some modes aredifferent). The default behavior is to return a new Image object ofthe same dimensions in mode transform.outMode.

参数:

im – A PIL Image object, and im.mode must be the same as the inModesupported by the transform.
transform – A valid CmsTransform class object
inPlace – Bool (1 == True, 0 or None == False). If True, im ismodified in place and None is returned, if False, a new Image objectwith the transform applied is returned (and im is not changed). Thedefault is False.返回:
Either None, or a new PIL Image object, depending on the value ofinPlace. The profile will be returned in the image’sinfo[‘icc_profile’].
引发:
PyCMSError –

PIL.ImageCms.buildProofTransform(inputProfile, outputProfile, proofProfile, inMode, outMode, renderingIntent=0, proofRenderingIntent=3, flags=16384)[源代码]
(pyCMS) Builds an ICC transform mapping from the inputProfile to theoutputProfile, but tries to simulate the result that would beobtained on the proofProfile device.

If the input, output, or proof profiles specified are not validfilenames, a PyCMSError will be raised.

If an error occurs during creation of the transform, a PyCMSError willbe raised.

If inMode or outMode are not a mode supported by the outputProfile(or by pyCMS), a PyCMSError will be raised.

This function builds and returns an ICC transform from the inputProfileto the outputProfile, but tries to simulate the result that would beobtained on the proofProfile device using renderingIntent andproofRenderingIntent to determine what to do with out-of-gamutcolors. This is known as “soft-proofing”. It will ONLY work forconverting images that are in inMode to images that are in outModecolor format (PIL mode, i.e. “RGB”, “RGBA”, “CMYK”, etc.).

Usage of the resulting transform object is exactly the same as withImageCms.buildTransform().

Proof profiling is generally used when using an output device to get agood idea of what the final printed/displayed image would look like onthe proofProfile device when it’s quicker and easier to use theoutput device for judging color. Generally, this means that theoutput device is a monitor, or a dye-sub printer (etc.), and the simulateddevice is something more expensive, complicated, or time consuming(making it difficult to make a real print for color judgement purposes).

Soft-proofing basically functions by adjusting the colors on theoutput device to match the colors of the device being simulated. However,when the simulated device has a much wider gamut than the outputdevice, you may obtain marginal results.

参数:

inputProfile – String, as a valid filename path to the ICC inputprofile you wish to use for this transform, or a profile object
outputProfile – String, as a valid filename path to the ICC output(monitor, usually) profile you wish to use for this transform, or aprofile object
proofProfile – String, as a valid filename path to the ICC proofprofile you wish to use for this transform, or a profile object
inMode – String, as a valid PIL mode that the appropriate profilealso supports (i.e. “RGB”, “RGBA”, “CMYK”, etc.)
outMode – String, as a valid PIL mode that the appropriate profilealso supports (i.e. “RGB”, “RGBA”, “CMYK”, etc.)
renderingIntent –
Integer (0-3) specifying the rendering intent youwish to use for the input->proof (simulated) transform

see the pyCMS documentation for details on rendering intents and whatthey do.

proofRenderingIntent –
Integer (0-3) specifying the rendering intentyou wish to use for proof->output transform

see the pyCMS documentation for details on rendering intents and whatthey do.

flags – Integer (0-…) specifying additional flags返回:
A CmsTransform class object.
引发:
PyCMSError –

PIL.ImageCms.buildProofTransformFromOpenProfiles(inputProfile, outputProfile, proofProfile, inMode, outMode, renderingIntent=0, proofRenderingIntent=3, flags=16384)
(pyCMS) Builds an ICC transform mapping from the inputProfile to theoutputProfile, but tries to simulate the result that would beobtained on the proofProfile device.

If the input, output, or proof profiles specified are not validfilenames, a PyCMSError will be raised.

If an error occurs during creation of the transform, a PyCMSError willbe raised.

If inMode or outMode are not a mode supported by the outputProfile(or by pyCMS), a PyCMSError will be raised.

Usage of the resulting transform object is exactly the same as withImageCms.buildTransform().

参数:

inputProfile – String, as a valid filename path to the ICC inputprofile you wish to use for this transform, or a profile object
outputProfile – String, as a valid filename path to the ICC output(monitor, usually) profile you wish to use for this transform, or aprofile object
proofProfile – String, as a valid filename path to the ICC proofprofile you wish to use for this transform, or a profile object
inMode – String, as a valid PIL mode that the appropriate profilealso supports (i.e. “RGB”, “RGBA”, “CMYK”, etc.)
outMode – String, as a valid PIL mode that the appropriate profilealso supports (i.e. “RGB”, “RGBA”, “CMYK”, etc.)
renderingIntent –
Integer (0-3) specifying the rendering intent youwish to use for the input->proof (simulated) transform

see the pyCMS documentation for details on rendering intents and whatthey do.

proofRenderingIntent –
Integer (0-3) specifying the rendering intentyou wish to use for proof->output transform

see the pyCMS documentation for details on rendering intents and whatthey do.

flags – Integer (0-…) specifying additional flags返回:
A CmsTransform class object.
引发:
PyCMSError –

PIL.ImageCms.buildTransform(inputProfile, outputProfile, inMode, outMode, renderingIntent=0, flags=0)[源代码]
(pyCMS) Builds an ICC transform mapping from the inputProfile to theoutputProfile. Use applyTransform to apply the transform to a givenimage.

If the input or output profiles specified are not valid filenames, aPyCMSError will be raised. If an error occurs during creation of thetransform, a PyCMSError will be raised.

If inMode or outMode are not a mode supported by the outputProfile (orby pyCMS), a PyCMSError will be raised.

This function builds and returns an ICC transform from the inputProfileto the outputProfile using the renderingIntent to determine what to dowith out-of-gamut colors. It will ONLY work for converting images thatare in inMode to images that are in outMode color format (PIL mode,i.e. “RGB”, “RGBA”, “CMYK”, etc.).

Building the transform is a fair part of the overhead inImageCms.profileToProfile(), so if you’re planning on converting multipleimages using the same input/output settings, this can save you time.Once you have a transform object, it can be used withImageCms.applyProfile() to convert images without the need to re-computethe lookup table for the transform.

The reason pyCMS returns a class object rather than a handle directlyto the transform is that it needs to keep track of the PIL input/outputmodes that the transform is meant for. These attributes are stored inthe “inMode” and “outMode” attributes of the object (which can bemanually overridden if you really want to, but I don’t know of anytime that would be of use, or would even work).

参数:

inputProfile – String, as a valid filename path to the ICC inputprofile you wish to use for this transform, or a profile object
outputProfile – String, as a valid filename path to the ICC outputprofile you wish to use for this transform, or a profile object
inMode – String, as a valid PIL mode that the appropriate profilealso supports (i.e. “RGB”, “RGBA”, “CMYK”, etc.)
outMode – String, as a valid PIL mode that the appropriate profilealso supports (i.e. “RGB”, “RGBA”, “CMYK”, etc.)
renderingIntent –
Integer (0-3) specifying the rendering intent youwish to use for the transform

see the pyCMS documentation for details on rendering intents and whatthey do.

flags – Integer (0-…) specifying additional flags返回:
A CmsTransform class object.
引发:
PyCMSError –

PIL.ImageCms.buildTransformFromOpenProfiles(inputProfile, outputProfile, inMode, outMode, renderingIntent=0, flags=0)
(pyCMS) Builds an ICC transform mapping from the inputProfile to theoutputProfile. Use applyTransform to apply the transform to a givenimage.

If the input or output profiles specified are not valid filenames, aPyCMSError will be raised. If an error occurs during creation of thetransform, a PyCMSError will be raised.

If inMode or outMode are not a mode supported by the outputProfile (orby pyCMS), a PyCMSError will be raised.

参数:

inputProfile – String, as a valid filename path to the ICC inputprofile you wish to use for this transform, or a profile object
outputProfile – String, as a valid filename path to the ICC outputprofile you wish to use for this transform, or a profile object
inMode – String, as a valid PIL mode that the appropriate profilealso supports (i.e. “RGB”, “RGBA”, “CMYK”, etc.)
outMode – String, as a valid PIL mode that the appropriate profilealso supports (i.e. “RGB”, “RGBA”, “CMYK”, etc.)
renderingIntent –
Integer (0-3) specifying the rendering intent youwish to use for the transform

see the pyCMS documentation for details on rendering intents and whatthey do.

flags – Integer (0-…) specifying additional flags返回:
A CmsTransform class object.
引发:
PyCMSError –

PIL.ImageCms.createProfile(colorSpace, colorTemp=-1)[源代码]
(pyCMS) Creates a profile.

If colorSpace not in [“LAB”, “XYZ”, “sRGB”], a PyCMSError is raised

If using LAB and colorTemp != a positive integer, a PyCMSError is raised.

If an error occurs while creating the profile, a PyCMSError is raised.

Use this function to create common profiles on-the-fly instead ofhaving to supply a profile on disk and knowing the path to it. Itreturns a normal CmsProfile object that can be passed toImageCms.buildTransformFromOpenProfiles() to create a transform to applyto images.

参数:

colorSpace – String, the color space of the profile you wish tocreate.Currently only “LAB”, “XYZ”, and “sRGB” are supported.
colorTemp – Positive integer for the white point for the profile, indegrees Kelvin (i.e. 5000, 6500, 9600, etc.). The default is for D50illuminant if omitted (5000k). colorTemp is ONLY applied to LABprofiles, and is ignored for XYZ and sRGB.返回:
A CmsProfile class object
引发:
PyCMSError –

PIL.ImageCms.getDefaultIntent(profile)[源代码]
(pyCMS) Gets the default intent name for the given 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 default intent, aPyCMSError is raised.

Use this function to determine the default (and usually best optimized)rendering intent for this profile. Most profiles support multiplerendering intents, but are intended mostly for one type of conversion.If you wish to use a different intent than returned, useImageCms.isIntentSupported() to verify it will work first.

参数:profile – EITHER a valid CmsProfile object, OR a string of thefilename of an ICC profile.返回:Integer 0-3 specifying the default rendering intent for thisprofile.

see the pyCMS documentation for details on rendering intents and what
they do.引发:PyCMSError –

PIL.ImageCms.getOpenProfile(profileFilename)[源代码]
(pyCMS) Opens an ICC profile file.

The PyCMSProfile object can be passed back into pyCMS for use in creatingtransforms and such (as in ImageCms.buildTransformFromOpenProfiles()).

If profileFilename is not a valid filename for an ICC profile, a PyCMSErrorwill be raised.

参数:profileFilename – String, as a valid filename path to the ICC profileyou wish to open, or a file-like object.返回:A CmsProfile class object.引发:PyCMSError –

PIL.ImageCms.getProfileCopyright(profile)[源代码]
(pyCMS) Gets the copyright for the given 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 copyright tag, a PyCMSErroris raised

Use this function to obtain the information stored in the profile’scopyright tag.

参数:profile – EITHER a valid CmsProfile object, OR a string of thefilename of an ICC profile.返回:A string containing the internal profile information stored inan ICC tag.引发:PyCMSError –

PIL.ImageCms.getProfileDescription(profile)[源代码]
(pyCMS) Gets the description for the given 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 description tag, a PyCMSErroris raised

Use this function to obtain the information stored in the profile’sdescription tag.

PIL.ImageCms.getProfileInfo(profile)[源代码]
(pyCMS) Gets the internal product information for the given 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 info tag, a PyCMSErroris raised

Use this function to obtain the information stored in the profile’sinfo tag. This often contains details about the profile, and how itwas created, as supplied by the creator.

PIL.ImageCms.getProfileManufacturer(profile)[源代码]
(pyCMS) Gets the manufacturer for the given 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, aPyCMSError is raised

Use this function to obtain the information stored in the profile’smanufacturer tag.

PIL.ImageCms.getProfileModel(profile)[源代码]
(pyCMS) Gets the model for the given 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 model tag, a PyCMSErroris raised

Use this function to obtain the information stored in the profile’smodel tag.

PIL.ImageCms.getProfileName(profile)[源代码]
(pyCMS) Gets the internal product name for the given 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 thename tag, a PyCMSError is raised.

Use this function to obtain the INTERNAL name of the profile (storedin an ICC tag in the profile itself), usually the one used when theprofile was originally created. Sometimes this tag also containsadditional information supplied by the creator.

参数:profile – EITHER a valid CmsProfile object, OR a string of thefilename of an ICC profile.返回:A string containing the internal name of the profile as storedin an ICC tag.引发:PyCMSError –

PIL.ImageCms.getdisplay_profile(_handle=None)[源代码]
(experimental) Fetches the profile for the current display device.:returns: None if the profile is not known.

PIL.ImageCms.isIntentSupported(profile, intent, direction)[源代码]
(pyCMS) Checks if a given intent is supported.

Use this function to verify that you can use your desiredrenderingIntent with profile, and that profile can be used for theinput/output/proof profile as you desire.

Some profiles are created specifically for one “direction”, can cannotbe used for others. Some profiles can only be used for certainrendering intents… so it’s best to either verify this before tryingto create a transform with them (using this function), or catch thepotential PyCMSError that will occur if they don’t support the modesyou select.

参数:

profile – EITHER a valid CmsProfile object, OR a string of thefilename of an ICC profile.
intent –
Integer (0-3) specifying the rendering intent you wish touse with this profile

- see the pyCMS documentation for details on rendering intents and what
- they do.

direction –
Integer specifying if the profile is to be used forinput, output, or proof

返回:
1 if the intent/direction are supported, -1 if they are not.
引发:
PyCMSError –

PIL.ImageCms.profileToProfile(im, inputProfile, outputProfile, renderingIntent=0, outputMode=None, inPlace=0, flags=0)[源代码]
(pyCMS) Applies an ICC transformation to a given image, mapping frominputProfile to outputProfile.

If the input or output profiles specified are not valid filenames, aPyCMSError will be raised. If inPlace == TRUE and outputMode != im.mode,a PyCMSError will be raised. If an error occurs during application ofthe profiles, a PyCMSError will be raised. If outputMode is not a modesupported by the outputProfile (or by pyCMS), a PyCMSError will beraised.

This function applies an ICC transformation to im from inputProfile’scolor space to outputProfile’s color space using the specified renderingintent to decide how to handle out-of-gamut colors.

OutputMode can be used to specify that a color mode conversion is tobe done using these profiles, but the specified profiles must be ableto handle that mode. I.e., if converting im from RGB to CMYK usingprofiles, the input profile must handle RGB data, and the outputprofile must handle CMYK data.

参数:

im – An open PIL image object (i.e. Image.new(…) orImage.open(…), etc.)
inputProfile – String, as a valid filename path to the ICC inputprofile you wish to use for this image, or a profile object
outputProfile – String, as a valid filename path to the ICC outputprofile you wish to use for this image, or a profile object
renderingIntent –
Integer (0-3) specifying the rendering intent youwish to use for the transform

see the pyCMS documentation for details on rendering intents and whatthey do.

outputMode – A valid PIL mode for the output image (i.e. “RGB”,“CMYK”, etc.). Note: if rendering the image “inPlace”, outputModeMUST be the same mode as the input, or omitted completely. Ifomitted, the outputMode will be the same as the mode of the inputimage (im.mode)
inPlace – Boolean (1 = True, None or 0 = False). If True, theoriginal image is modified in-place, and None is returned. If False(default), a new Image object is returned with the transform applied.
flags – Integer (0-…) specifying additional flags返回:
Either None or a new PIL image object, depending on value ofinPlace
引发:
PyCMSError –

PIL.ImageCms.versions()[源代码]
(pyCMS) Fetches versions.

CmsProfile

The ICC color profiles are wrapped in an instance of the classCmsProfile. The specification ICC.1:2010 contains moreinformation about the meaning of the values in ICC profiles.

For convenience, all XYZ-values are also given as xyY-values (so theycan be easily displayed in a chromaticity diagram, for example).

class PIL.ImageCms.CmsProfile
- creation_date
- Date and time this profile was first created (see 7.2.1 of ICC.1:2010).

Type:datetime.datetime or None

version
The version number of the ICC standard that this profile follows(e.g. 2.0).

Type:float

icc_version
Same as version, but in encoded format (see 7.2.4 of ICC.1:2010).
device_class
4-character string identifying the profile class. One ofscnr, mntr, prtr, link, spac, abst,nmcl (see 7.2.5 of ICC.1:2010 for details).

Type:string

xcolor_space
4-character string (padded with whitespace) identifying the colorspace, e.g. XYZ␣, RGB␣ or CMYK (see 7.2.6 ofICC.1:2010 for details).

Note that the deprecated attribute color_space contains aninterpreted (non-padded) variant of this (but can be empty onunknown input).

Type:string

connection_space
4-character string (padded with whitespace) identifying the colorspace on the B-side of the transform (see 7.2.7 of ICC.1:2010 fordetails).

Note that the deprecated attribute pcs contains an interpreted(non-padded) variant of this (but can be empty on unknown input).

Type:string

header_flags
The encoded header flags of the profile (see 7.2.11 of ICC.1:2010for details).

Type:int

header_manufacturer
4-character string (padded with whitespace) identifying the devicemanufacturer, which shall match the signature contained in theappropriate section of the ICC signature registry found atwww.color.org (see 7.2.12 of ICC.1:2010).

Type:string

header_model
4-character string (padded with whitespace) identifying the devicemodel, which shall match the signature contained in theappropriate section of the ICC signature registry found atwww.color.org (see 7.2.13 of ICC.1:2010).

Type:string

attributes
Flags used to identify attributes unique to the particular devicesetup for which the profile is applicable (see 7.2.14 ofICC.1:2010 for details).

Type:int

rendering_intent
The rendering intent to use when combining this profile withanother profile (usually overridden at run-time, but provided herefor DeviceLink and embedded source profiles, see 7.2.15 of ICC.1:2010).

One of ImageCms.INTENT_ABSOLUTE_COLORIMETRIC, ImageCms.INTENT_PERCEPTUAL,ImageCms.INTENT_RELATIVE_COLORIMETRIC and ImageCms.INTENT_SATURATION.

Type:int

profile_id
A sequence of 16 bytes identifying the profile (via a speciallyconstructed MD5 sum), or 16 binary zeroes if the profile ID hasnot been calculated (see 7.2.18 of ICC.1:2010).

Type:bytes

copyright
The text copyright information for the profile (see 9.2.21 of ICC.1:2010).

Type:unicode or None

manufacturer
The (English) display string for the device manufacturer (see9.2.22 of ICC.1:2010).

Type:unicode or None

model
The (English) display string for the device model of the devicefor which this profile is created (see 9.2.23 of ICC.1:2010).

Type:unicode or None

profile_description
The (English) display string for the profile description (see9.2.41 of ICC.1:2010).

Type:unicode or None

target
The name of the registered characterization data set, or themeasurement data for a characterization target (see 9.2.14 ofICC.1:2010).

Type:unicode or None

red_colorant
The first column in the matrix used in matrix/TRC transforms (see 9.2.44 of ICC.1:2010).

Type:((X, Y, Z), (x, y, Y)) or None

green_colorant
The second column in the matrix used in matrix/TRC transforms (see 9.2.30 of ICC.1:2010).

Type:((X, Y, Z), (x, y, Y)) or None

blue_colorant
The third column in the matrix used in matrix/TRC transforms (see 9.2.4 of ICC.1:2010).

Type:((X, Y, Z), (x, y, Y)) or None

luminance
The absolute luminance of emissive devices in candelas per squaremetre as described by the Y channel (see 9.2.32 of ICC.1:2010).

Type:((X, Y, Z), (x, y, Y)) or None

chromaticity
The data of the phosphor/colorant chromaticity set used (red,green and blue channels, see 9.2.16 of ICC.1:2010).

Type:((x, y, Y), (x, y, Y), (x, y, Y)) or None

chromatic_adaption
The chromatic adaption matrix converts a color measured using theactual illumination conditions and relative to the actual adoptedwhite, to an color relative to the PCS adopted white, withcomplete adaptation from the actual adopted white chromaticity tothe PCS adopted white chromaticity (see 9.2.15 of ICC.1:2010).

Two matrices are returned, one in (X, Y, Z) space and one in (x, y, Y) space.

Type:2-tuple of 3-tuple, the first with (X, Y, Z) and the second with (x, y, Y) values

colorant_table
This tag identifies the colorants used in the profile by a uniquename and set of PCSXYZ or PCSLAB values (see 9.2.19 ofICC.1:2010).

Type:list of strings

colorant_table_out
This tag identifies the colorants used in the profile by a uniquename and set of PCSLAB values (for DeviceLink profiles only, see9.2.19 of ICC.1:2010).

Type:list of strings

colorimetric_intent
4-character string (padded with whitespace) identifying the imagestate of PCS colorimetry produced using the colorimetric intenttransforms (see 9.2.20 of ICC.1:2010 for details).

Type:string or None

perceptual_rendering_intent_gamut
4-character string (padded with whitespace) identifying the (one)standard reference medium gamut (see 9.2.37 of ICC.1:2010 fordetails).

Type:string or None

saturation_rendering_intent_gamut
4-character string (padded with whitespace) identifying the (one)standard reference medium gamut (see 9.2.37 of ICC.1:2010 fordetails).

Type:string or None

technology
4-character string (padded with whitespace) identifying the devicetechnology (see 9.2.47 of ICC.1:2010 for details).

Type:string or None

media_black_point
This tag specifies the media black point and is used forgenerating absolute colorimetry.

This tag was available in ICC 3.2, but it is removed fromversion 4.

Type:((X, Y, Z), (x, y, Y)) or None

media_white_point_temperature
Calculates the white point temperature (see the LCMS documentationfor more information).

Type:float or None

viewing_condition
The (English) display string for the viewing conditions (see9.2.48 of ICC.1:2010).

Type:unicode or None

screening_description
The (English) display string for the screening conditions.

This tag was available in ICC 3.2, but it is removed fromversion 4.

Type:unicode or None

red_primary
The XYZ-transformed of the RGB primary color red (1, 0, 0).

Type:((X, Y, Z), (x, y, Y)) or None

green_primary
The XYZ-transformed of the RGB primary color green (0, 1, 0).

Type:((X, Y, Z), (x, y, Y)) or None

blue_primary
The XYZ-transformed of the RGB primary color blue (0, 0, 1).

Type:((X, Y, Z), (x, y, Y)) or None

is_matrix_shaper
True if this profile is implemented as a matrix shaper (seedocumentation on LCMS).

Type:bool

clut
Returns a dictionary of all supported intents and directions forthe CLUT model.

The dictionary is indexed by intents(ImageCms.INTENT_ABSOLUTE_COLORIMETRIC,ImageCms.INTENT_PERCEPTUAL,ImageCms.INTENT_RELATIVE_COLORIMETRIC andImageCms.INTENT_SATURATION).

The values are 3-tuples indexed by directions(ImageCms.DIRECTION_INPUT, ImageCms.DIRECTION_OUTPUT,ImageCms.DIRECTION_PROOF).

The elements of the tuple are booleans. If the value is True,that intent is supported for that direction.

Type:dict of boolean 3-tuples

intent_supported
Returns a dictionary of all supported intents and directions.

The dictionary is indexed by intents(ImageCms.INTENT_ABSOLUTE_COLORIMETRIC,ImageCms.INTENT_PERCEPTUAL,ImageCms.INTENT_RELATIVE_COLORIMETRIC andImageCms.INTENT_SATURATION).

The values are 3-tuples indexed by directions(ImageCms.DIRECTION_INPUT, ImageCms.DIRECTION_OUTPUT,ImageCms.DIRECTION_PROOF).

The elements of the tuple are booleans. If the value is True,that intent is supported for that direction.

Type:dict of boolean 3-tuples

color_space
Deprecated but retained for backwards compatibility.Interpreted value of xcolor_space. May be theempty string if value could not be decoded.

Type:string

pcs
Deprecated but retained for backwards compatibility.Interpreted value of connection_space. May bethe empty string if value could not be decoded.

Type:string

product_model
Deprecated but retained for backwards compatibility.ASCII-encoded value of model.

Type:string

product_manufacturer
Deprecated but retained for backwards compatibility.ASCII-encoded value of manufacturer.

Type:string

product_copyright
Deprecated but retained for backwards compatibility.ASCII-encoded value of copyright.

Type:string

product_description
Deprecated but retained for backwards compatibility.ASCII-encoded value of profile_description.

Type:string

product_desc
Deprecated but retained for backwards compatibility.ASCII-encoded value of profile_description.

This alias of product_description used tocontain a derived informative string about the profile,depending on the value of the description, copyright,manufacturer and model fields).

Type:string

There is one function defined on the class:

isintent_supported(_intent, direction)
Returns if the intent is supported for the given direction.

Note that you can also get this information for all intents and directionswith intent_supported.

参数:

- **intent** – One of <code>ImageCms.INTENT_ABSOLUTE_COLORIMETRIC</code>,<code>ImageCms.INTENT_PERCEPTUAL</code>,<code>ImageCms.INTENT_RELATIVE_COLORIMETRIC</code>and <code>ImageCms.INTENT_SATURATION</code>.
- **direction** – One of <code>ImageCms.DIRECTION_INPUT</code>,<code>ImageCms.DIRECTION_OUTPUT</code>and <code>ImageCms.DIRECTION_PROOF</code>返回:

Boolean if the intent and direction is supported.