Specification of Colorspace in JPEG 2000 Balances Flexibility with Interoperability

摘要

In the past, there have been many different image file formats, providing many different capabilities. However, the one thing they all shared was a very limited mechanism for encoding color. Storing a color image today forces developers to either take a "lowest-common-denominator" approach by using a single standard colorspace in all applications, or by using the capabilities of ICC color management at the loss of wide interoperability. The JPEG 2000 file formats change all this with a new architecture for encoding the colorspace of an image. While the solution is not perfect, it greatly increases the number of colorspaces that can be encoded while maintaining a very high level of interoperability between applications. This paper describes the color encoding architecture in the JPEG 2000 file format and shows how this new architecture meets the needs of tomorrows imaging applications.