Abstract: Compound document images are usually high resolution and high quality images that include color, graphics, and images in addition to text. The need for good compression is important for storage and transmission. Due to the large size, even compressed, it is often difficult to access document images quickly and efficiently for display on monitors. The nascent JPM file format enables the best compound document image compression in terms of rate-distortion. However, the access into a JPM file is limited by the access features of the coders used. JPEG 2000 is an image coding system that allows access to lower resolutions, progressive bit-rates, and regions of interest.

Abstract: A method and apparatus for processing JPM files having layout objects and sideband information is described. In one embodiment, the method comprises receiving a JPM file having layout objects. The layout objects include at least one layout object that represents sideband image information for a purpose other than use in display of a decoded image. The method also includes creating the decoded image by accessing information in the JPM file corresponding to the layout objects and decoding the information. The sideband image information is not intended to be displayed with the decoded image and is absent from display of the decoded image.

Abstract: A method and apparatus for parsing a JPM file into another JPM file are disclosed. In one embodiment, the method comprises accessing a first JPM file and converting the first JPM file to a second JPM file based on a desired characteristic of an output image that is to be generated from the second JPM file.

Abstract: A method and apparatus for using multiple page descriptions for the same page is described. In one embodiment, the method comprises receiving a file in a file format, wherein the file has a plurality of page boxes for a page, each of the plurality of page boxes corresponding to a different description of the page; and accessing the file to obtain at least one of the different descriptions of the page.

Abstract: Compound document images are usually high resolution and high quality images that include color, graphics, and images in addition to text. The need for good compression is important for storage and transmission. Due to the large size, even compressed, it is often difficult to access document images quickly and efficiently for display on monitors. The nascent JPM file format enables the best compound document image compression in terms of rate-distortion. However, the access into a JPM file is limited by the access features of the coders used. JPEG 2000 is an image coding system that allows access to lower resolutions, progressive bit-rates, and regions of interest.

Abstract: Compound document images are usually high resolution and high quality images that include color, graphics, and images in addition to text. The need for good compression is important for storage and transmission. Due to the large size, even compressed, it is often difficult to access document images quickly and efficiently for display on monitors. The nascent JPM file format enables the best compound document image compression in terms of rate-distortion. However, the access into a JPM file is limited by the access features of the coders used. JPEG 2000 is an image coding system that allows access to lower resolutions, progressive bit-rates, and regions of interest.

Abstract: A method and apparatus for processing JPM files having layout objects and sideband information is described. In one embodiment, the method comprises receiving a JPM file having layout objects. The layout objects include at least one layout object that represents sideband image information for a purpose other than use in display of a decoded image. The method also includes creating the decoded image by accessing information in the JPM file corresponding to the layout objects and decoding the information. The sideband image information is not intended to be displayed with the decoded image and is absent from display of the decoded image.