Audio-Visual Prototyping Project


ImageMD Data Dictionary


# Table Name Field Name Field Definition Data Type Enumerated Values
1 imagesrc analog_digi_flag Indicator of the how this entity is describe in the METS document instance. Enumerated Type Analog, PhysDigital, FileDigital
2 imagesrc bits_per_sample Bit depth at each pixel, e.g., 8, 16, 24, etc. Large signed number NONE
3 imagesrc chromaticities_primary Chromaticities of the primary colors of the image. SBCS(255) NONE
4 imagesrc chromaticities_primary_blue_x This specifies the Blue [x] value for the chromaticities of the primary colors of the imaging process. Note: These values specify the 1931 CIE xy chromaticities of the capture primaries. The ordering is red [x], red [y], green[x], green[y],blue[x],blue[y SBCS(255) NONE
5 imagesrc chromaticities_primary_blue_y This specifies the Blue [y] value for the chromaticities of the primary colors of the imaging process. Note: These values specify the 1931 CIE xy chromaticities of the capture primaries. The ordering is red [x], red [y], green[x], green[y],blue[x],blue[y SBCS(255) NONE
6 imagesrc chromaticities_primary_green_x This specifies the Green [x] value for the chromaticities of the primary colors of the imaging process. Note: These values specify the 1931 CIE xy chromaticities of the capture primaries. The ordering is red [x], red [y], green[x], green[y],blue[x],blue[ SBCS(255) NONE
7 imagesrc chromaticities_primary_green_y This specifies the Green [y] value for the chromaticities of the primary colors of the imaging process. Note: These values specify the 1931 CIE xy chromaticities of the capture primaries. The ordering is red [x], red [y], green[x], green[y],blue[x],blue[ SBCS(255) NONE
8 imagesrc chromaticities_primary_red_x This specifies the Red [x] value for the chromaticities of the primary colors of the imaging process. Note: These values specify the 1931 CIE xy chromaticities of the capture primaries. The ordering is red [x], red [y], green[x], green[y],blue[x],blue[y] SBCS(255) NONE
9 imagesrc chromaticities_primary_red_y This specifies the Red [y] value for the chromaticities of the primary colors of the imaging process. Note: These values specify the 1931 CIE xy chromaticities of the capture primaries. The ordering is red [x], red [y], green[x], green[y],blue[x],blue[y] SBCS(255) NONE
10 imagesrc chromaticities_white_point White point chromaticity of the effective illumination source. SBCS(255) NONE
11 imagesrc chromaticities_white_point_x The X value for the white point chromaticity of the effective illumination source of the capture process. Notes: These values specify the 1931 CIE xy chromaticities of the effective illumination (i.e., filter/light source combination) at capture. They do SBCS(255) NONE
12 imagesrc chromaticities_white_point_y The Y value for the white point chromaticity of the effective illumination source of the capture process. Notes: These values specify the 1931 CIE xy chromaticities of the effective illumination (i.e., filter/light source combination) at capture. They do SBCS(255) NONE
13 imagesrc color_map_bitcode_value Color lookup table for non-RGB images. SBCS(2000) NONE
14 imagesrc color_map_blue_value This field provides the Blue Value within a particular RGB triplet of the Colormap (often called a lookup table) for palette-color images. Particular triplet is reference in colormap_bitcode_value. Possible values are 0-255. Note: There is no Colormap in SBCS(255) NONE
15 imagesrc color_map_green_value This field provides the Green Value within a particular RGB triplet of the Colormap (often called a lookup table) for palette-color images. Particular triplet is reference in colormap_bitcode_value. Possible values are 0-255. Note: There is no Colormap in SBCS(255) NONE
16 imagesrc color_map_location The location of the color map, e.g., image file, auxiliary file, associated file, metadata. Enumerated Type Image File, Auxiliary File, Associated File, Metadata
17 imagesrc color_map_red_value This field provides the Red Value within a particular RGB triplet of the Colormap (often called a lookup table) for palette-color images. Particular triplet is reference in colormap_bitcode_value. Possible values are 0-255. Note: There is no Colormap in R SBCS(255) NONE
18 imagesrc compression_level Designates the level of compression used in compression_scheme. Large signed number NONE
19 imagesrc compression_scheme Designates the compression scheme used to store the image data. Values above are drawn from TIFF 6.0 specification though institutions are encouraged to devise a local enumerated list to allow for the addition of new values as technology changes. This dat Enumerated Type 1, 2, 3, 4, 5, 6, 7
20 imagesrc condition Narrative description of the physical condition of the item, e.g., brittle paper, foxing, staining, etc. SBCS(2000) NONE
21 imagesrc dimensions_depth Depth of the object expressed in the unit of measure indicated in dimensions_unit, e.g., 4, 12. Large signed number NONE
22 imagesrc dimensions_diameter Diameter of any circular object expressed in the unit of measure indicated in dimensions_unit, e.g., 3.5, 5, 7. Large signed number NONE
23 imagesrc dimensions_height Height of the object expressed in the unit of measure indicated in dimensions_unit, e.g., 6, 12, 24. Large signed number NONE
24 imagesrc dimensions_note Desciption of odd-shaped objects that cannot be described using the standard dimensions fields. SBCS(2000) NONE
25 imagesrc dimensions_unit Unit of measurement of the source object, e.g., inches. SBCS(255) NONE
26 imagesrc dimensions_width Width of any non-circular object expressed in the unit of measure indicated in dimensions_unit, e.g., 3.5, 5, 7. Large signed number NONE
27 imagesrc dimensions_x_unit Unit of measurement of the source object for the x dimension, e.g., inches. SBCS(255) NONE
28 imagesrc dimensions_y_unit Unit of measurement of the source object for the y dimension, e.g., inches. SBCS(255) NONE
29 imagesrc disposition What became of the source item, e.g., reshelved on shelf number 1234, discarded, loaned to XYZ organization, destroyed, etc. SBCS(2000) NONE
30 imagesrc extra_samples Specifies that each pixel has extra components. Enumerated Type Yes, No
31 imagesrc generation Generation of physical source item which was digitized, e.g., photostat copy, slide copy, film interpositive from negative, etc. SBCS(255) NONE
32 imagesrc gray_response_loc The location of the gray response curve values, e.g., image file, auxiliary file, associated file, metadata. Enumerated Type Image File, Auxiliary File, Associated File, Metadata
33 imagesrc gray_response_unit Unit of measure of gray response curve values. SBCS(255) NONE
34 imagesrc gray_response_value Gray response curve values, used when a response curve is generated at the start of a capture session. Large signed number NONE
35 imagesrc image_data Temporary location of the target file if not contained within the image file (external) e.g. URN, URL, etc. See also target_id and target_type. (NISO-image terminology) SBCS(255) NONE
36 imagesrc image_identifier A persistent identifier required at prime object level, optional at all other levels. This identifier must be unique within the local system. SBCS(255) NONE
37 imagesrc image_identifier_location A location qualifier to be used in conjunction with image_identifier. Persistent identifier required at prime object level, optional at all other levels. This identifier must be unique within the local system. To facilitate file sharing or interoperabilit SBCS(255) NONE
38 imagesrc note Additional information about the image source item. SBCS(2000) NONE
39 imagesrc orientation_disk Orientation of the image saved on disk, e.g., normal, normal rotated 180, normal rotated cw 90, etc.D164. Enumerated Type Normal, Rotated 180, Rotated CW 90, Rotated CCW 90, Unknown
40 imagesrc orientation_display Orientation of the image as displayed, e.g., landscape or portrait. Enumerated Type Landscape, Portrait
41 imagesrc performance_data Identifies the path of the file that contains the image performance data relative to the target identified in target_id, e.g. filename, URL, URN. Notes: PerformanceData refers to standards-based characterizations of system performance according to measure SBCS(255) NONE
42 imagesrc photometric_interp Designates the color space of the decompressed image data as defined in the NISO image data dictionary. 0 = White Is Zero, bitonal (typical) or grayscale 1 = Black Is Zero, grayscale (typical) or bitonal 2 = RGB 3 = Palette color 4 = Transparency Mas Enumerated Type 0, 1, 2, 3, 4, 5, 6, 8
43 imagesrc phys_format Name for the physical format of the source e.g., Oil Painting, Photograph, etc. SBCS(255) NONE
44 imagesrc pixels_horizontal Horizontal dimension of image in pixels, e.g., 1024. Large signed number NONE
45 imagesrc pixels_vertical Vertical dimension of image in pixels, e.g., 768, called ImageLength in the NISO image data dictionary. Large signed number NONE
46 imagesrc planar Designates how the components of each pixel are stored. 1 = Chunky Format 2 = Planar Format Enumerated Type 1, 2
47 imagesrc preferred_presentation Designation of the device, application, medium, viewing environment (or any combination thereof) to render the image data. For image data that can be defined to have a best representation,? use this free-text field to recommend the target? device, applica SBCS(255) NONE
48 imagesrc profile_name Designates the well-defined name of the ICC profile used. If ICC profile used is a well-known and well-documented profile, record the information in this data element. If not, record the location of where the profile can be found in profile_url. SBCS(255) NONE
49 imagesrc profile_url Designates the URL/URN where the ICC profile is located. If ICC profile used is a well-known and well-documented profile, record the information in profile_name. If not, record the location of where the profile can be found in this data element. SBCS(255) NONE
50 imagesrc profiles Identifies the path of the file that contains the ICC color profile or other image management profiles, e.g. filename, URL, URN. Notes: Each target shall be represented by its own logical metadata block. SBCS(255) NONE
51 imagesrc reference_black_white Encodes a pair of headroom and footroom image data values for each pixel component. This tag is mandatory when PhotometricInterpretation = 6 (YCbCr), and there are no defaults allowed. See TIFF Section 21 YCbCr Images and ISO/TC42N 4378 TIFF/EP standard, Enumerated Type NONE
52 imagesrc samples_per_pixel The number of color components (samples) per pixel, e.g., 3 (RGB) , 4 (CYMK), etc. Large signed number NONE
53 imagesrc sampling_freq_unit Unit of measure for horizontal and vertical sampling frequency, e.g., inches, centimeters, or unknown. Enumerated Type Inches, Centimeters, Unknown
54 imagesrc sampling_frequency_horizontal Number of pixels per sampling frequency unit by width. Large signed number NONE
55 imagesrc sampling_frequency_plane Reference plane location for horizontal and vertical sampling frequency. SBCS(255) NONE
56 imagesrc sampling_frequency_vertical Number of pixels per sampling frequency unit by height. Large signed number NONE
57 imagesrc segment_form Specifies whether the image is stored in tiles or strips. Enumerated Type Strips, Tiles
58 imagesrc source_id A unique identifier for a descriptive record of the source of image. Notes: Link to existing data record for the source material. Values (Examples): RLIN ID OCLC record number Local system control number. SBCS(255) NONE
59 imagesrc strip_byte_counts Number of image data bytes stored within each strip after compression. Large signed number NONE
60 imagesrc strip_offsets Byte offset of a strip. Large signed number NONE
61 imagesrc strip_rows Number of rows per strip. Large signed number NONE
62 imagesrc target_id Calibration target name, manufacturer, version, etc. See also image_data and target_type. (NISO-image terminology) SBCS(255) NONE
63 imagesrc target_id_manufacturer Identifies the manufacturer or organization that created the target. Notes: Each target shall be represented by its own logical metadata block. SBCS(255) NONE
64 imagesrc target_id_media Identifies the media of the target. Notes: Each target shall be represented by its own logical metadata block. SBCS(255) NONE
65 imagesrc target_id_name Identifies the name of the target. Notes: Each target shall be represented by its own logical metadata block. SBCS(255) NONE
66 imagesrc target_id_no Identifies the version or number of the target. Notes: Each target shall be represented by its own logical metadata block. SBCS(255) NONE
67 imagesrc target_type Conveys whether the target image is internal to the image file or external. See also image_data and target_id. (NISO-image terminology) SBCS(255) NONE
68 imagesrc tile_byte_counts Number of image data bytes stored within each tile after compression. Large signed number NONE
69 imagesrc tile_height Tile height in pixels, called TileLength in the NISO image data dictionary. Large signed number NONE
70 imagesrc tile_offsets Byte offset of a tile. Large signed number NONE
71 imagesrc tile_width Tile width in pixels. Large signed number NONE
72 imagesrc tracking_type The type of tracking code, e.g., MAVIS number, actual shelf numbers, bar-code, etc. SBCS(255) NONE
73 imagesrc tracking_value Shelf number or other identifier for source, e.g., MAVIS number, actual shelf numbers, etc. SBCS(255) NONE
74 imagesrc watermark Type of watermark used in the file, e.g., Digimarc, Giovanni, Alpha-Tec, StirMark, etc. SBCS(255) NONE
75 imagesrc x_targeted_displayar Unit of X orientation. Large signed number NONE
76 imagesrc y_targeted_displayar Unit of Y orientation. Large signed number NONE
77 imagesrc ycbcr_coefficients Encodes the transformation from RGB to YCbCr image data. It is mandatory when PhotometricInterpretation = 6, and there are no defaults allowed. The transformation is specified as three rational values that represent the coefficients used to compute lumina Enumerated Type NONE
78 imagesrc ycbcr_positioning Designates the positions of subsampled chrominance components relative to luminance samples. This tag is mandatory when PhotometricInterpretation = 6, and the value shall equal 2. See TIFF Section 21 YCbCr Images and ISO/TC42N 4378 TIFF/EP standard, Secti Enumerated Type NONE
79 imagesrc ycbcr_subsampling Designates the subsampling factors used for the chrominance components of a YCbCr image. It is mandatory when PhotometricInterpretation = 6, and there are no defaults allowed. See TIFF Section 21 YCbCr Images and ISO/TC42N 4378 TIFF/EP standard, Section 5 Enumerated Type NONE

2/25/03
Library of Congress
Comments: AV Prototype Coordinator (cfle@loc.gov)
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( August 31, 2010 )