| 摘要 |
In one image included in a moving image, a specific area is registered as a reference area, and a feature amount of the reference area is set based on the saturation and hue distributions of pixels in the reference area. At this time, when a value calculated from the saturations in the reference area is equal to or smaller than a threshold, the feature amount is set to have a lower resolution of the hue distributions in the reference area than a case in which the value is larger than the threshold. By deciding a position corresponding to the feature amount of the reference area in a frame image after the image including the reference area by a matching process, the reference area is tracked. Then, an object in a specific area can be stably tracked in a moving image. |
