DICOM PS3.3 2022d - Information Object Definitions
C.7.6.3.3 Image Pixel Description Macro

Table C.7-11c specifies the Attributes of the Section C.7.6.3.3 Image Pixel Description Macro, which are the common Attributes that describe the pixel data of the image.

Table C.7-11c. Image Pixel Description Macro Attributes

Attribute Name

Tag

Type

Attribute Description

Samples per Pixel

(0028,0002)

1

Number of samples (planes) in this image. See Section C.7.6.3.1.1 for further explanation.

Photometric Interpretation

(0028,0004)

1

Specifies the intended interpretation of the pixel data. See Section C.7.6.3.1.2 for further explanation.

Rows

(0028,0010)

1

Number of rows in the image.

Shall be an exact multiple of the vertical downsampling factor if any of the samples (planes) are encoded downsampled in the vertical direction for pixel data encoded in a Native (uncompressed) format. E.g., required to be an even value for a Photometric Interpretation (0028,0004) of YBR_FULL_422.

Columns

(0028,0011)

1

Number of columns in the image.

Shall be an exact multiple of the horizontal downsampling factor if any of the samples (planes) are encoded downsampled in the horizontal direction for pixel data encoded in a Native (uncompressed) format. E.g., required to be an even value for a Photometric Interpretation (0028,0004) of YBR_FULL_422.

Bits Allocated

(0028,0100)

1

Number of bits allocated for each pixel sample. Each sample shall have the same number of bits allocated. Bits Allocated (0028,0100) shall be either 1, or a multiple of 8. See PS3.5 for further explanation.

Bits Stored

(0028,0101)

1

Number of bits stored for each pixel sample. Each sample shall have the same number of bits stored. See PS3.5 for further explanation.

High Bit

(0028,0102)

1

Most significant bit for pixel sample data. Each sample shall have the same high bit. High Bit (0028,0102) shall be one less than Bits Stored (0028,0101). See PS3.5 for further explanation.

Pixel Representation

(0028,0103)

1

Data representation of the pixel samples. Each sample shall have the same pixel representation.

Enumerated Values:

0000H

unsigned integer.

0001H

2's complement

Planar Configuration

(0028,0006)

1C

Indicates whether the pixel data are encoded color-by-plane or color-by-pixel. Required if Samples per Pixel (0028,0002) has a value greater than 1. See Section C.7.6.3.1.3 for further explanation.

Pixel Aspect Ratio

(0028,0034)

1C

Ratio of the vertical size and horizontal size of the pixels in the image specified by a pair of integer values where the first value is the vertical pixel size, and the second value is the horizontal pixel size. Required if the aspect ratio values do not have a ratio of 1:1 and the physical pixel spacing is not specified by Pixel Spacing (0028,0030), or Imager Pixel Spacing (0018,1164) or Nominal Scanned Pixel Spacing (0018,2010), either for the entire Image or per-frame in a Functional Group Macro. See Section C.7.6.3.1.7.

Smallest Image Pixel Value

(0028,0106)

3

The minimum actual pixel value encountered in this image.

Largest Image Pixel Value

(0028,0107)

3

The maximum actual pixel value encountered in this image.

Red Palette Color Lookup Table Descriptor

(0028,1101)

1C

Specifies the format of the Red Palette Color Lookup Table Data (0028,1201). Required if Photometric Interpretation (0028,0004) has a value of PALETTE COLOR or Pixel Presentation (0008,9205) at the image level equals COLOR or MIXED. See Section C.7.6.3.1.5 for further explanation.

Green Palette Color Lookup Table Descriptor

(0028,1102)

1C

Specifies the format of the Green Palette Color Lookup Table Data (0028,1202). Required if Photometric Interpretation (0028,0004) has a value of PALETTE COLOR or Pixel Presentation (0008,9205) at the image level equals COLOR or MIXED. See Section C.7.6.3.1.5 for further explanation.

Blue Palette Color Lookup Table Descriptor

(0028,1103)

1C

Specifies the format of the Blue Palette Color Lookup Table Data (0028,1203). Required if Photometric Interpretation (0028,0004) has a value of PALETTE COLOR or Pixel Presentation (0008,9205) at the image level equals COLOR or MIXED. See Section C.7.6.3.1.5 for further explanation.

Red Palette Color Lookup Table Data

(0028,1201)

1C

Red Palette Color Lookup Table Data. Required if Photometric Interpretation (0028,0004) has a value of PALETTE COLOR or Pixel Presentation (0008,9205) at the image level equals COLOR or MIXED. See Section C.7.6.3.1.6 for further explanation.

Green Palette Color Lookup Table Data

(0028,1202)

1C

Green Palette Color Lookup Table Data. Required if Photometric Interpretation (0028,0004) has a value of PALETTE COLOR or Pixel Presentation (0008,9205) at the image level equals COLOR or MIXED. See Section C.7.6.3.1.6 for further explanation.

Blue Palette Color Lookup Table Data

(0028,1203)

1C

Blue Palette Color Lookup Table Data. Required if Photometric Interpretation (0028,0004) has a value of PALETTE COLOR or Pixel Presentation (0008,9205) at the image level equals COLOR or MIXED. See Section C.7.6.3.1.6 for further explanation.

ICC Profile

(0028,2000)

3

An ICC Profile encoding the transformation of device-dependent color stored pixel values into PCS-Values.

See Section C.11.15.1.1.

When present, defines the color space of color Pixel Data (7FE0,0010) values, and the output of Palette Color Lookup Table Data (0028,1201-1203).

Note

The profile applies only to Pixel Data (7FE0,0010) at the same level of the Data Set and not to any icons nested within Sequences, which may or may not have their own ICC profile specified.

Color Space

(0028,2002)

3

A label that identifies the well-known color space of the image. Shall be consistent with any ICC Profile (0028,2000) that is also present.

See Section C.11.15.1.2.


DICOM PS3.3 2022d - Information Object Definitions