METHOD FOR IMAGE COMPRESSION USING METADATA OF CAMERA

摘要

Disclosed is a method for reducing an amount of compressed still image data and improving image quality upon compression of a video, using metadata of a camera. The disclosed method comprises the steps of: acquiring an image; analyzing metadata of a camera corresponding to the acquired image to divide each block of the acquired image into one among an out-focused block, a general block, and a focused block; and compressing the acquired image, but adjusting a quantization variable value according to the inputted divided blocks and compressing the acquired image. Therefore, an amount of data can be reduced or image quality can be improved by using metadata of a camera upon compression of an image. In particular, image quality can be improved by removing a screen blocking effect caused by skipping a screen in an out-focused area upon compression of a video.