Table of Contents

Enum IccTypeSignature

Namespace
SixLabors.ImageSharp.Metadata.Profiles.Icc
Assembly
SixLabors.ImageSharp.dll

Type Signature

public enum IccTypeSignature : uint

Fields

Chromaticity = 1667789421

The chromaticity tag type provides basic chromaticity data and type of phosphors or colorants of a monitor to applications and utilities

ColorantOrder = 1668051567

This is an optional tag which specifies the laydown order in which colorants will be printed on an n-colorant device. The laydown order may be the same as the channel generation order listed in the colorantTableTag or the channel order of a color encoding type such as CMYK, in which case this tag is not needed. When this is not the case (for example, ink-towers sometimes use the order KCMY), this tag may be used to specify the laydown order of the colorants

ColorantTable = 1668051572

The purpose of this tag is to identify the colorants used in the profile by a unique name and set of PCSXYZ or PCSLAB values to give the colorant an unambiguous value. The first colorant listed is the colorant of the first device channel of a LUT tag. The second colorant listed is the colorant of the second device channel of a LUT tag, and so on

CrdInfo = 1668441193

REMOVED IN V4 - This type contains the PostScript product name to which this profile corresponds and the names of the companion CRDs

Curve = 1668641398

The curveType embodies a one-dimensional function which maps an input value in the domain of the function to an output value in the range of the function

Data = 1684108385

The dataType is a simple data structure that contains either 7-bit ASCII or binary data

DateTime = 1685350765

Date and time defined by 6 unsigned 16bit integers (year, month, day, hour, minute, second)

DeviceSettings = 1684371059

REMOVED IN V4 - This type is an array of structures each of which contains platform-specific information about the settings of the device for which this profile is valid. This type is not supported.

Lut16 = 1835430962

This structure represents a color transform using tables with 16-bit precision. This type contains four processing elements: a 3 × 3 matrix (which shall be the identity matrix unless the input color space is PCSXYZ), a set of one-dimensional input tables, a multi-dimensional lookup table, and a set of one-dimensional output tables

Lut8 = 1835430961

This structure represents a color transform using tables of 8-bit precision. This type contains four processing elements: a 3 × 3 matrix (which shall be the identity matrix unless the input color space is PCSXYZ), a set of one-dimensional input tables, a multi-dimensional lookup table, and a set of one-dimensional output tables.

LutAToB = 1832993312

This structure represents a color transform. The type contains up to five processing elements which are stored in the AToBTag tag in the following order: a set of one-dimensional curves, a 3 × 3 matrix with offset terms, a set of one-dimensional curves, a multi-dimensional lookup table, and a set of one-dimensional output curves

LutBToA = 1833058592

This structure represents a color transform. The type contains up to five processing elements which are stored in the BToATag in the following order: a set of one-dimensional curves, a 3 × 3 matrix with offset terms, a set of one-dimensional curves, a multi-dimensional lookup table, and a set of one-dimensional curves.

Measurement = 1835360627

This information refers only to the internal profile data and is meant to provide profile makers an alternative to the default measurement specifications

MultiLocalizedUnicode = 1835824483

This tag structure contains a set of records each referencing a multilingual Unicode string associated with a profile. Each string is referenced in a separate record with the information about what language and region the string is for.

MultiProcessElements = 1836082548

This structure represents a color transform, containing a sequence of processing elements. The processing elements contained in the structure are defined in the structure itself, allowing for a flexible structure. Currently supported processing elements are: a set of one dimensional curves, a matrix with offset terms, and a multidimensional lookup table (CLUT). Other processing element types may be added in the future. Each type of processing element may be contained any number of times in the structure.

NamedColor = 1852010348

REMOVED IN V2 - use NamedColor2 instead. This type is not supported.

NamedColor2 = 1852009522

This type is a count value and array of structures that provide color coordinates for color names. For each named color, a PCS and optional device representation of the color are given. Both representations are 16-bit values and PCS values shall be relative colorimetric. The device representation corresponds to the header’s "data color space" field. This representation should be consistent with the "number of device coordinates" field in the namedColor2Type. If this field is 0, device coordinates are not provided. The PCS representation corresponds to the header's PCS field. The PCS representation is always provided. Color names are fixed-length, 32-byte fields including null termination. In order to maintain maximum portability, it is strongly recommended that special characters of the 7-bit ASCII set not be used.

ParametricCurve = 1885434465

This type describes a one-dimensional curve by specifying one of a predefined set of functions using the parameters.

ProfileSequenceDesc = 1886610801

This type is an array of structures, each of which contains information from the header fields and tags from the original profiles which were combined to create the final profile. The order of the structures is the order in which the profiles were combined and includes a structure for the final profile. This provides a description of the profile sequence from source to destination, typically used with the DeviceLink profile.

ProfileSequenceIdentifier = 1886611812

This type is an array of structures, each of which contains information for identification of a profile used in a sequence.

ResponseCurveSet16 = 1919120178

The purpose of this tag type is to provide a mechanism to relate physical colorant amounts with the normalized device codes produced by lut8Type, lut16Type, lutAToBType, lutBToAType or multiProcessElementsType tags so that corrections can be made for variation in the device without having to produce a new profile. The mechanism can be used by applications to allow users with relatively inexpensive and readily available instrumentation to apply corrections to individual output color channels in order to achieve consistent results.

S15Fixed16Array = 1936077618

Array of signed floating point numbers with 1 sign bit, 15 value bits and 16 fractional bits

Screening = 1935897198

REMOVED IN V4 - The screeningType describes various screening parameters including screen frequency, screening angle, and spot shape

Signature = 1936287520

The signatureType contains a 4-byte sequence. Sequences of less than four characters are padded at the end with spaces. Typically this type is used for registered tags that can be displayed on many development systems as a sequence of four characters.

Text = 1952807028

Simple ASCII text

TextDescription = 1684370275

REMOVED IN V4 - The textDescriptionType is a complex structure that contains three types of text description structures: 7-bit ASCII, Unicode and ScriptCode. Since no single standard method for specifying localizable character sets exists across the major platform vendors, including all three provides access for the major operating systems. The 7-bit ASCII description is to be an invariant, nonlocalizable name for consistent reference. It is preferred that both the Unicode and ScriptCode structures be properly localized.

U16Fixed16Array = 1969632050

Array of unsigned floating point numbers with 16 value bits and 16 fractional bits

UInt16Array = 1969828150

Array of unsigned 16bit integers (ushort)

UInt32Array = 1969828658

Array of unsigned 32bit integers (uint)

UInt64Array = 1969829428

Array of unsigned 64bit integers (ulong)

UInt8Array = 1969827896

Array of unsigned 8bit integers (byte)

UcrBg = 1650877472

REMOVED IN V4 - This type contains curves representing the under color removal and black generation and a text string which is a general description of the method used for the UCR and BG

Unknown = 0

Unknown type signature

ViewingConditions = 1986618743

This type represents a set of viewing condition parameters.

Xyz = 1482250784

3 floating point values describing a XYZ color value