K
K or Kb
See: kilobyte
kana
Japanese syllabic characters derived from Chinese. There are two varieties: hiragana and katakana.
kanji
Japanese term for Chinese characters.
katakana
Angular form of kana, roughly parallel to Latin block letters, and used much like English italics.
Kauth's Tasseled Cap or Kauth's greenness / brightness / wetness
A set of linear combinations of the Landsat TM spectral bands which computationally reduce the images to maps of a site's greenness, brightness, and wetness. Kauth, a scientist at the Environmental Research Institute of Michigan, extended the green biomass concepts developed by Dr. Lee D. Miller, a principal of MicroImages, to extract more biophysical information from Landsat MSS and TM multispectral images. He developed the combinations by carefully correlating ground measurements made by Miller and others with values in the satellite images. The plots of the data distribution in the original spectral bands resemble a tasseled cap - hence the general name by which these transformations are called.
key field
A field in a database table identified as of importance is designated a primary key. There can be only one primary key in a table. A primary key field must have unique entries for each record in the table. A primary key field also may not be blank in any of the records in a table. A foreign key is a field with the same name as a primary key that is located in a different table. Foreign keys are identified automatically when primary keys are designated in other tables attached to the same vector/CAD object. (See also: database, foreign key, primary key.) Primary and foreign key relationships between tables let you establish computed fields that incorporate values from more than one table in their defining expression.
kilobyte
A unit of measure equal to 1024 bytes (2 to the 10th power), but loosely used for 1,000 bytes. So also with its multiples: megabyte (loosely 1,000,000 bytes), gigabyte (loosely 1,000,000,000 bytes) and terabyte (1,000,000,000,000 bytes). (See also: bit, byte, exabyte, gigabyte, megabyte, pecabyte, terabyte.)
K-means
An iterative method of unsupervised classification (clustering). The n-dimensional raster space is divided into K clusters. The cluster means are used to determine cluster membership. After all cells are processed, new cluster means are determined and the process is repeated a predetermined number of times or until convergence is achieved.
K or Kb
See: kilobyte
kana
Japanese syllabic characters derived from Chinese. There are two varieties: hiragana and katakana.
kanji
Japanese term for Chinese characters.
katakana
Angular form of kana, roughly parallel to Latin block letters, and used much like English italics.
Kauth's Tasseled Cap or Kauth's greenness / brightness / wetness
A set of linear combinations of the Landsat TM spectral bands which computationally reduce the images to maps of a site's greenness, brightness, and wetness. Kauth, a scientist at the Environmental Research Institute of Michigan, extended the green biomass concepts developed by Dr. Lee D. Miller, a principal of MicroImages, to extract more biophysical information from Landsat MSS and TM multispectral images. He developed the combinations by carefully correlating ground measurements made by Miller and others with values in the satellite images. The plots of the data distribution in the original spectral bands resemble a tasseled cap - hence the general name by which these transformations are called.
key field
A field in a database table identified as of importance is designated a primary key. There can be only one primary key in a table. A primary key field must have unique entries for each record in the table. A primary key field also may not be blank in any of the records in a table. A foreign key is a field with the same name as a primary key that is located in a different table. Foreign keys are identified automatically when primary keys are designated in other tables attached to the same vector/CAD object. (See also: database, foreign key, primary key.) Primary and foreign key relationships between tables let you establish computed fields that incorporate values from more than one table in their defining expression.
kilobyte
A unit of measure equal to 1024 bytes (2 to the 10th power), but loosely used for 1,000 bytes. So also with its multiples: megabyte (loosely 1,000,000 bytes), gigabyte (loosely 1,000,000,000 bytes) and terabyte (1,000,000,000,000 bytes). (See also: bit, byte, exabyte, gigabyte, megabyte, pecabyte, terabyte.)
K-means
An iterative method of unsupervised classification (clustering). The n-dimensional raster space is divided into K clusters. The cluster means are used to determine cluster membership. After all cells are processed, new cluster means are determined and the process is repeated a predetermined number of times or until convergence is achieved.