1. A method of capturing a high dynamic range (HDR) image, comprising: capturing multiple images of a scene at respectively different exposure settings; capturing a further image of an object placed in the scene at one exposure setting; forming a first radiance image from the multiple images; forming a second radiance image from the further image; and merging the first radiance image and the second radiance image to form the HDR image, wherein the HDR image has a first region that includes the object and is formed from the second radiance image, wherein the HDR image has a second region that excludes the object and is formed from the first radiance image, and wherein the first region of the HDR image has a lower dynamic range than the second region of the HDR image.