org.dcm4che2.iod.value
Class PhotometricInterpretation

java.lang.Object
  org.dcm4che2.iod.value.PhotometricInterpretation

public class PhotometricInterpretation
extends java.lang.Object

The value of Photometric Interpretation (0028,0004) specifies the intended interpretation of the image pixel data.

See PS 3.5 for restrictions imposed by compressed Transfer Syntaxes.

The following values are defined. Other values are permitted but the meaning is not defined by this Standard.

Author:

Antonio Magni

Field Summary

static java.lang.String	MONOCHROME1 Pixel data represent a single monochrome image plane.
static java.lang.String	MONOCHROME2 Pixel data represent a single monochrome image plane.
static java.lang.String	PALETTE_COLOR Pixel data describe a color image with a single sample per pixel (single image plane).
static java.lang.String	YBR_FULL Pixel data represent a color image described by one luminance (Y) and two chrominance planes (CB and CR).
static java.lang.String	YBR_FULL_422 The same as YBR_FULL except that the CB and CR values are sampled horizontally at half the Y rate and as a result there are half as many CB and CR values as Y values.
static java.lang.String	YBR_ICT Pixel data represent a color image described by one luminance (Y) and two chrominance planes (CB and CR).
static java.lang.String	YBR_PARTIAL_420 The same as YBR_PARTIAL_422 except that the CB and CR values are sampled horizontally and vertically at half the Y rate and as a result there are four times less CB and CR values than Y values, versus twice less for YBR_PARTIAL_422.
static java.lang.String	YBR_PARTIAL_422 The same as YBR_FULL_422 except that: black corresponds to Y = 16; Y is restricted to 220 levels (i.e.
static java.lang.String	YBR_RCT Pixel data represent a color image described by one luminance (Y) and two chrominance planes (CB and CR).

Constructor Summary

PhotometricInterpretation()

Method Summary

static boolean

isValid(java.lang.String ss) The following values are defined.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

MONOCHROME1

public static java.lang.String MONOCHROME1

Pixel data represent a single monochrome image plane. The minimum sample value is intended to be displayed as white after any VOI gray scale transformations have been performed. See PS 3.4. This value may be used only when Samples per Pixel (0028,0002) has a value of 1.

MONOCHROME2

public static java.lang.String MONOCHROME2

Pixel data represent a single monochrome image plane. The minimum sample value is intended to be displayed as black after any VOI gray scale transformations have been performed. See PS 3.4. This value may be used only when Samples per Pixel (0028,0002) has a value of 1.

PALETTE_COLOR

public static java.lang.String PALETTE_COLOR

Pixel data describe a color image with a single sample per pixel (single image plane). The pixel value is used as an index into each of the Red, Blue, and Green Palette Color Lookup Tables (0028,1101-1103&1201-1203). This value may be used only when Samples per Pixel (0028,0002) has a value of 1. When the Photometric Interpretation is Palette Color; Red, Blue, and Green Palette Color Lookup Tables shall be present. RGB = Pixel data represent a color image described by red, green, and blue image planes. The minimum sample value for each color plane represents minimum intensity of the color. This value may be used only when Samples per Pixel (0028,0002) has a value of 3.

YBR_FULL

public static java.lang.String YBR_FULL

Pixel data represent a color image described by one luminance (Y) and two chrominance planes (CB and CR). This photometric interpretation may be used only when Samples per Pixel (0028,0002) has a value of 3. Black is represented by Y equal to zero. The absence of color is represented by both CB and CR values equal to half full scale.

YBR_FULL_422

public static java.lang.String YBR_FULL_422

The same as YBR_FULL except that the CB and CR values are sampled horizontally at half the Y rate and as a result there are half as many CB and CR values as Y values.

YBR_PARTIAL_422

public static java.lang.String YBR_PARTIAL_422

The same as YBR_FULL_422 except that:

1. black corresponds to Y = 16;
2. Y is restricted to 220 levels (i.e. the maximum value is 235);
3. CB and CR each has a minimum value of 16;
4. CB and CR are restricted to 225 levels (i.e. the maximum value is 240);
5. lack of color is represented by CB and CR equal to 128.

YBR_PARTIAL_420

public static java.lang.String YBR_PARTIAL_420

The same as YBR_PARTIAL_422 except that the CB and CR values are sampled horizontally and vertically at half the Y rate and as a result there are four times less CB and CR values than Y values, versus twice less for YBR_PARTIAL_422.

YBR_ICT

public static java.lang.String YBR_ICT

Pixel data represent a color image described by one luminance (Y) and two chrominance planes (CB and CR). This photometric interpretation may be used only when Samples per Pixel (0028,0002) has a value of 3. Black is represented by Y equal to zero. The absence of color is represented by both CB and CR values equal to zero.

YBR_RCT

public static java.lang.String YBR_RCT

Pixel data represent a color image described by one luminance (Y) and two chrominance planes (CB and CR). This photometric interpretation may be used only when Samples per Pixel (0028,0002) has a value of 3. Black is represented by Y equal to zero. The absence of color is represented by both CB and CR values equal to zero.

Constructor Detail

PhotometricInterpretation

public PhotometricInterpretation()

Method Detail

isValid

public static boolean isValid(java.lang.String ss)

The following values are defined. Other values are permitted but the meaning is not defined by this Standard.

Parameters:

ss -

Returns:

True unless ss is null.