Method of Storing Raster Image in Run Lengths Having Variable Numbers of Bytes and Medium with Raster Image Thus Stored

Metadata Updated: August 28, 2014

The invention implements a run-length file format with improved space-sav qualities. The file starts with a header in ASCII format and includes information such as the file format, maximum X and Y values, and a color palette. The binary raster data include at least one byte for each pixel run to indicate the color selected from the color palette and the run length. Concatenation flags demarcate groups of bytes. According to a first embodiment, each run is indicated by a variable-length sequence of bytes with the color in a fixed-length field and the repeat number in a variable-length field. According to a second embodiment, the color and run length are given in separate byte strings, each having a variable length. The file also includes line offset pointers to permit navigation of the file without decompressing it and thus to facilitate operations such as panning and zooming

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Dates

Metadata Created Date August 28, 2014
Metadata Updated Date August 28, 2014
Modified 2014-06-24

Metadata Source

Harvested from NOAA Patents Json

Additional Metadata

Resource Type Dataset
Metadata Created Date August 28, 2014
Metadata Updated Date August 28, 2014
Publisher Department of Commerce
Identifier TT-000041
Maintainer
Derek Parks
Maintainer Email
Accesslevel public
Bureaucode 006:48
Harvest Object Id 1e7abbf5-345b-49cc-8494-0522bfcec642
Harvest Source Id 32bb7250-22a0-47b3-97f2-bc8ac2fcd631
Harvest Source Title NOAA json
Modified 2014-06-24
Programcode 006:000
Source Datajson Identifier True
Source Hash 0223bfc4adcf90f4d9d25e42e68e5bf40f6ee73b

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