Audio-Visual Prototyping Project


MIX Data Dictionary (AV Project Version)


# Table Name Field Name Field Definition Data Type Enumerated Values
1 imagemd bits_per_sample Bit depth at each pixel, e.g., 8, 16, 24, etc. Suggested Enumerated Type NONE
2 imagemd 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
3 imagemd 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
4 imagemd 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
5 imagemd 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
6 imagemd 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
7 imagemd 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
8 imagemd 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
9 imagemd 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
10 imagemd color_map_bitcode_value Color lookup table for non-RGB images. SBCS(255) NONE
11 imagemd 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
12 imagemd 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
13 imagemd color_map_location The location of the color map, e.g., image file, auxiliary file, associated file, metadata. Enumerated Type Associated File, Auxiliary File, Image File, Metadata
14 imagemd 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
15 imagemd compression_level Designates the level of compression used in compression_scheme. Large signed number NONE
16 imagemd 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, JPEG, 32773, LZW
17 imagemd extra_samples Specifies that each pixel has extra components. Enumerated Type 0, 1, 2, 3
18 imagemd gray_response_loc The location of the gray response curve values, e.g., image file, auxiliary file, associated file, metadata. Enumerated Type Associated File, Auxiliary File, Image File, Metadata
19 imagemd gray_response_unit Unit of measure of gray response curve values. Suggested Enumerated Type NONE
20 imagemd 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
21 imagemd 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
22 imagemd 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
23 imagemd 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
24 imagemd note Additional information or comments about the image object. SBCS(255) NONE
25 imagemd 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
26 imagemd orientation_display Orientation of the image as displayed, e.g., landscape or portrait. Enumerated Type Landscape, Portrait
27 imagemd 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. SBCS(255) NONE
28 imagemd 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
29 imagemd pixels_horizontal Horizontal dimension of image in pixels, e.g., 1024. Large signed number NONE
30 imagemd pixels_vertical Vertical dimension of image in pixels, e.g., 768, called ImageLength in the NISO image data dictionary. Large signed number NONE
31 imagemd planar Designates how the components of each pixel are stored. 1 = Chunky Format 2 = Planar Format Enumerated Type 1, 2
32 imagemd 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
33 imagemd 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
34 imagemd 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
35 imagemd 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
36 imagemd 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
37 imagemd samples_per_pixel The number of color components (samples) per pixel, e.g., 3 (RGB) , 4 (CYMK), etc. Suggested Enumerated Type NONE
38 imagemd sampling_freq_unit Unit of measure for horizontal and vertical sampling frequency, e.g., inches, centimeters, or unknown. Enumerated Type Inches, Centimeters, Unknown
39 imagemd sampling_frequency_horizontal Number of pixels per sampling frequency unit by width. Large signed number NONE
40 imagemd sampling_frequency_plane Reference plane location for horizontal and vertical sampling frequency. Suggested Enumerated Type NONE
41 imagemd sampling_frequency_vertical Number of pixels per sampling frequency unit by height. Large signed number NONE
42 imagemd segment_form Specifies whether the image is stored in tiles or strips. Enumerated Type Strips, Tiles
43 imagemd strip_byte_counts Number of image data bytes stored within each strip after compression. Large signed number NONE
44 imagemd strip_offsets Byte offset of a strip. Large signed number NONE
45 imagemd strip_rows Number of rows per strip. Large signed number NONE
46 imagemd target_id Calibration target name, manufacturer, version, etc. See also image_data and target_type. (NISO-image terminology) SBCS(255) NONE
47 imagemd 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
48 imagemd target_id_media Identifies the media of the target. Notes: Each target shall be represented by its own logical metadata block. SBCS(255) NONE
49 imagemd target_id_name Identifies the name of the target. Notes: Each target shall be represented by its own logical metadata block. SBCS(255) NONE
50 imagemd 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
51 imagemd 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) Enumerated Type external, internal
52 imagemd tile_byte_counts Number of image data bytes stored within each tile after compression. Large signed number NONE
53 imagemd tile_height Tile height in pixels, called TileLength in the NISO image data dictionary. Large signed number NONE
54 imagemd tile_offsets Byte offset of a tile. Large signed number NONE
55 imagemd tile_width Tile width in pixels. Large signed number NONE
56 imagemd watermark Type of watermark used in the file, e.g., Digimarc, Giovanni, Alpha-Tec, StirMark, etc. SBCS(255) NONE
57 imagemd x_targeted_displayar Unit of X orientation. Large signed number NONE
58 imagemd y_targeted_displayar Unit of Y orientation. Large signed number NONE
59 imagemd 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
60 imagemd 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
61 imagemd 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 ([email protected])
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( August 31, 2010 )