Adaptive image rendering and use of imposter

Images and/or collections of images may be rendered in a way that adapts to ambient circumstances, and that may enhance a user's perception of experience quality. When an image is requested for display, it is determined whether a rendered version of the image exists. If no rendered version of the image exists, then an imposter image is displayed. The imposter image may include arbitrary colors and/or patterns. If an appropriate rendered version of the image exists, then the rendered version may be displayed in place of the imposter version. While the imposter or rendered image is being displayed, the image may be retrieved, and may be rendered at other resolutions (e.g., successively higher resolutions). The choice of resolutions may be adapted to available transmission bandwidth, display speed, or other considerations.