Abstract: A composite image displayed on an image display incorporates a first portion of image content, and incorporates one or more second portions of image content within corresponding one or more picture regions of the composite image. One or more images properties selected from a resolution, a level of magnification, a measure of pan, a size, and a scale of each of the first and second image portions can be modified, and the modification of an image property of the one or more second portions of image content entails receiving either supplemental or replacement image data that provides for displaying a corresponding modified version of the corresponding one or more second portions of image content, the modification of which can be independent of the first portion of image content and is responsive to an action by the user that indicates at least an interest in or focus on the one or more second portions of image content.

Abstract: Initial low-quality images of a progressively-displayed high-definition image are masked with corresponding progressively-revealing mask filters or masking algorithms to realistically obscure such low quality and therefore to provide a realistically appearing progressive presentation of the high-definition image.

Abstract: A high-definition image is preprocessed to generate a substantially losslessly-reconstructable set of image components that include a relatively low-resolution base image and a plurality of extra-data images that provide for progressively substantially losslessly reconstructing the high-definition image from the base image, wherein a single primary-color component of the extra-data images provides for relatively quickly reconstructing full-resolution intermediate images during the substantially lossless-reconstruction process.

Abstract: Initial low-quality images of a progressively-displayed high-definition image are masked with corresponding progressively-revealing mask filters or masking algorithms to realistically obscure such low quality and therefore to provide a realistically appearing progressive presentation of the high-definition image.

Abstract: A high-definition image is preprocessed to generate a substantially losslessly-reconstructable set of image components that include a relatively low-resolution base image and a plurality of extra-data images that provide for progressively substantially losslessly reconstructing the high-definition image from the base image, wherein a single primary-color component of the extra-data images provides for relatively quickly reconstructing full-resolution intermediate images during the substantially lossless-reconstruction process.