高动态范围影像之多重曝光方法以及可携式电子装置;METHOD FOR MULTI-EXPOSURE OF HIGH DYNAMIC RANGE IMAGES AND PORTABLE ELECTRONIC DEVICE

摘要

一种高动态范围影像之多重曝光方法，步骤包括撷取一原始影像，并将上述原始影像切割为复数子影像。取得对应于上述子影像之复数亮度值。根据亮度值取得第一既定测光权重值以及第二既定测光权重值。根据第一既定测光权重值以及第二既定测光权重值取得第一曝光影像以及第二曝光影像。以及根据原始影像、第一曝光影像以及第二曝光影像取得高动态范围影像。; obtaining a plurality of brightness values corresponding to the sub-images; calculating a first metering weight and a second metering weight according to the brightness values; extracting a first exposure image and a second exposure image based on the first metering weight and the second metering weight; and, obtaining a high dynamic range image according to the original image, the first exposure image and the second exposure image.