Apparatus and method for selective image compression based on quality of fingerprint image and apparatus for authentication using the same

PURPOSE: An apparatus and a method for selective image compression based on the quality of a fingerprint image, and an apparatus for authentication using the same are provided to prevent the damage caused by quality degradation of a compressed image by compressing an original fingerprint image based on a calculated compression ratio. CONSTITUTION: An image quality measurement unit(110) measures an inputted original fingerprint image, and a compression ratio calculator(120) calculates the compression ratio of the original fingerprint image based on a preset reference quality value and a quality value of the original fingerprint image. If the quality value of the original fingerprint image is larger than the reference quality value, an image compression unit(130) compresses the original image based on the compression ratio.