IndexedColorSpace Class Documentation

class IndexedColorSpace : ColorSpace

Namespace:Datalogics::PDFL

Inherits from:
ColorSpace

Detailed Description

Indexed color spaces are used to reduce the amount of memory used for processing images.

Indexed color spaces are used when a limited number of colors are needed.

Commonly, an image with an indexed color space can be one third the size of the same image with a standard color space, because the indexed image uses a smaller palette of colors.

Referenced by

IndexedColorSpace

Constructor & Destructor Documentation

IndexedColorSpace

IndexedColorSpace(ColorSpace base_, int hival, System.Collections.Generic.IList< System.Int32 > lookup)

Parameters

base_: ColorSpace
hival: int

an integer that specifies the maximum valid index value. In other words, the color table is to be indexed by integers in the range 0 to hival. hival can be no greater than 255.

lookup: System.Collections.Generic.IList< System.Int32 >

a list of integers in the range 0..255. There must be m * (hival + 1) values, where m is the number of components of the base color space.

Create a Indexed color space.

Property Documentation

Base

ColorSpace Base[get]

DeviceCMYK

static ColorSpace DeviceCMYK[get]

The DeviceCMYK color space, representing cyan, magenta, yellow, and black components.

DeviceGray

static ColorSpace DeviceGray[get]

The DeviceGray color space, representing a single grayscale component.

DeviceRGB

static ColorSpace DeviceRGB[get]

The DeviceRGB color space, representing red, green, and blue components.

DeviceRGBA

static ColorSpace DeviceRGBA[get]

The DeviceRGBA color space, representing red, green, blue, and alpha components.

HiVal

int HiVal[get]

Lab

static ColorSpace Lab[get]

The CIE-based L*a*b* color space.

LabA

static ColorSpace LabA[get]

The CIE-based L*a*b* color space with an alpha component.

Lookup

System.Collections.Generic.IList< System.Int32 > Lookup[get]

Name

string Name[get]

NumComponents

int NumComponents[get]

PDFObject

PDFObject PDFObject[get]

Member Function Documentation

Dispose

void Dispose()

Returns:

void

Equals

override bool Equals(object obj)

Parameters

obj: object

Returns:

override bool

ToString

override string ToString()

Returns:

override string

A string describing this ColorSpace.

Convert a ColorSpace to a string representation.

operator!=

static bool operator!=(ColorSpace a, ColorSpace b)

Parameters

a: ColorSpace

The first ColorSpace to compare.

b: ColorSpace

The second ColorSpace to compare.

Returns:

bool

true if the two ColorSpace objects are not equal; false otherwise.

Test two ColorSpace objects for inequality.

operator==

static bool operator==(ColorSpace a, ColorSpace b)

Parameters

a: ColorSpace

The first ColorSpace to compare.

b: ColorSpace

The second ColorSpace to compare.

Returns:

bool

true if the two ColorSpace objects are equal; false otherwise.

Test two ColorSpace objects for equality.