The Best Shot Selection Method by Sharpness Comparison

Abstract

In recent years, opportunities of taking photographs have been increasing owing to the popularization of digital cameras, smart phones, and SNS that we can post photos easily. Because of the convenience of taking photos using digital cameras, we often take many photos of a single object. However, it is difficult to select the best shot when the number of photos is large. Therefore, in this study we propose a method to select the best shot from a group of photos that show same object. In the proposed method, first we estimate the color of the photographic subject from the center region of one of the photos selected from the group of photos. Then, we conduct region extraction having the color estimated as the photographic subject color for all photos within the photo group. Next, we compute the sharpness of the extracted region on every photo that is assumed to be photographic subject, and select the best shot by comparing the values of the sharpness. We conducted the experiments to verify the effectiveness of the proposed method and got good results.