| 摘要 |
PROBLEM TO BE SOLVED: To integrate a plurality of digital images to generate a high dynamic range (HDR) image where artifacts are removed.SOLUTION: An HDR image generating system performs motion detection on a set of lower dynamic range (LDR) images and derives relative exposure levels for the images on the basis of information obtained in the motion detection. These relative exposure levels are used in integrating the LDR images to form an HDR image. An HDR image rendering system tone-maps sample values in an HDR image to a corresponding lower dynamic range value, and calculates local contrast values. Residual signals are derived based on local contrast, and sample values for an LDR image are calculated based on the tone-mapped sample values and the residual signals. User preference information can be used during various stages of HDR image generation or rendering. |
