Patent Document ID: 8988548
Application ID: 13670717
Patent Status: 1

Claim One:
1. An image composition apparatus comprising: an information acquisition unit that acquires numerical values relating to brightness of pixel regions with a particular color in data of any image among data of a plurality of images that are sequentially captured with an exposure duration being varied; a synthesis unit that performs pixel addition of the data of the plurality of images by changing a degree of addition of the data of the plurality of images, based on the numerical values acquired by the information acquisition unit, and generates data of a composite image whose dynamic range is widened; and a conversion unit that converts the data of the any image to image data in a color space that includes a parameter relating to hue; wherein the information acquisition unit identifies pixel regions included in the image data converted by the conversion unit that are expressed with a particular hue, and acquires numerical values relating to the brightness of pixel regions with the Particular color.