ImageSourceMD Extension Schema ImageSourceMD contains adminstrative metadata that describe a image source item. regardless whether the source item was analog or digital. ImageSourceMDType:ComplexType for a image source item. The ImageSourceMDType is used to describe the characteristics of an image source item. An image source item is defined as the tangible analog or digital source item from which a digital image archival object is created. ImageSourceMDType has the following top-level elements: 1. physical: information about the physical characteristics of the image; 2. format: information about the segmentation (tile/strip) and orientation of the image; 3. spatial_metrics: information about the digital dimensions of the image; and 4. energetics: information about the pixel characteristics e.g. chromaticities, color map, response curve, etc.... ImageMDType: Complex Type for encapsulating within a single parent element the individual technical metadata elements that describe an image or portion of an image. But note that the top-level technical metadata elements that comprise the ImageMD schema can be used directly under a METS mdSec.dmWrap element. The individual elements are documented under their corresponding types. ImageMDType has 2 attributes, ID: (XML ID) IMAGETYPE: the type of image source item, e.g. book, painting, photo, poster, etc.... materialType: Complex Type for recording the physical characteristics of the construction and material of an item or portion of an item. materialType has 2 attributes, ID: (XML ID) FIELDTYPE: qualifier of the type of material/construction metadata contained in the element. - materialBase: type of material used in the recording substrate e.g paper, glass, canvas, parchment, etc... - materialBinder: type of adhesive used to bind a recording surface to the substrate - materialSurface: the type of recording surface aluminium, celluloid etc.... - materialStockBrand: name of the manufacturer of the medium, e.g. Scotch, Maxell, Sony, etc... formatType: The formatType complex type contains administrative metadata about the format of an image. It has the following elements: 1. segment: information about the segmentation of the image; 2. planar_configuration: designates how the components of each pixel are stored; 3. orientation: information about the orientation of the image on disk and display. segmentType: Complex Type for recording information about image segments of an item or portion of an item. segmentType has 2 attributes, ID: (XML ID) FIELDTYPE: qualifier of the type of metadata contained in the element. - segment_form: specifies whether the image is stored in tiles or strips; - strip_offsets: the byte offset of a strip; - strip_rows: the number of rows per strip; - strip_byte_counts: the number of image data bytes stored within each strip after compression; - tile_width: the tile width in pixels; - tile_height: the tile height in pixels; - tile_offsets: the byte offset of a tile; - tile_byte_counts: the number of image data bytes stored within each tile after compression. planar_configurationType: Complex Type for recording how the components of a pixel in an item or portion of an item are stored. planar_configurationType has a single attribute, ID (XML ID). orientationType: Complex Type for recording orientation information about an item or portion of an item. orientationType has 2 attributes, ID: (XML ID) FIELDTYPE: qualifier of the type of metadata contained in the element. - orientation_disk: orientation of the image on disk; - orientation_display: orientation of the image on display. spatial_metricsType: The spatial_metricsType complex type provides administrative metadata about the spatial metrics of an image. It has the following elements: 1. dimensions: information about the dimensions of the image in pixels; 2. sampling_frequency: information about the sampling frequency of the image; dimensionsType: Complex Type for recording pixel dimension information about an item or portion of an item. dimensionsType has 2 attributes, ID: (XML ID) FIELDTYPE: qualifier of the type of metadata contained in the element. - pixels_horizontal: the width of the image in pixels; - pixels_vertical: the height of the image in pixels; sampling_frequencyType: Complex Type for recording sampling frequency information about an item or portion of an item. sampling_frequencyType has 2 attributes, ID: (XML ID) FIELDTYPE: qualifier of the type of metadata contained in the element. - sampling_frequency_horizontal: the number of pixels per sampling frequency unit by width; - sampling_frequency_vertical: specifies the number of pixels per sampling frequency unit by height; - sampling_frequency_unit: the unit of measure for horizontal and vertical sampling frequency; - sampling_frequency_plane: the reference plane location for horizontal and vertical sampling frequency. energeticsType: The energetics complex type provides technical metadata about the pixel characteristics of an image. It has the following attributes: 1. sample: information about sample and pixel size; 4. color_map: information about the red-green-blue color map (color lookup table); 5. gray_response: information about the gray response curve; 8. chromaticities: information about chromaticities. sampleType: Complex Type for recording sample sizing information for an item or portion of an item. sampleType has 2 attributes, ID: (XML ID) FIELDTYPE: qualifier of the type of metadata contained in the element. - bits_per_sample: the number of bits per component for each pixel; - samples_per_pixel: the number of color components per pixel; - samples_extra: specifies that each pixel has extra components i.e. Yes or No. color_mapType: Complex Type for recording color map information for an item or portion of an item. color_mapType has 2 attributes, ID: (XML ID) FIELDTYPE: qualifier of the type of metadata contained in the element. - color_map_location: the location of the color map i.e. Image File, Aux File, Associated File, Metadata; - color_map_value: the color map embedded in schema as text. gray_responseType: Complex Type for recording gray response information for an item or portion of an item. gray_responseType has 2 attributes, ID: (XML ID) FIELDTYPE: qualifier of the type of metadata contained in the element. - gray_response_location: the location of the gray response curve i.e. Image File, Aux File, Associated File, Metadata; - gray_response_value: the optical density of each possible pixel value embedded in schema as text; - gray_response_unit: the unit of measure for the gray_response_curve. chromaticitiesType: Complex Type for recording chromaticities information for an item or portion of an item. chromaticitiesType has 2 attributes, ID: (XML ID) FIELDTYPE: qualifier of the type of metadata contained in the element. - chromaticities_white_point: the white point chromaticity of the effective illumination source; - chromaticities_primary: the chromaticities of the primary colors of the image;