摘要 |
The present invention relates to an apparatus for improving an image quality, a digital photographing device having the apparatus, and a method for improving an image quality. The apparatus for improving an image quality comprises: a zone collected reduction filter (ZRF) installed between a lens unit and an image sensor to transmit light which has passed through the lens unit such that the light is irradiated to the image sensor, and controlling light transmittance for each area which is divided into a plurality of parts; an image processing unit for processing an image obtained by the image sensor to data; and a ZRF control unit for calculating the brightness of the area divided into a plurality of parts in the image from the data processed by the image processing unit, and controlling the light transmittance for the ZRF area such that a brightness difference between the areas in the image is reduced. According to the present invention, when excessive brightness difference exists due to light saturation or light shortage for each area in one screen, light transmittance for each area is controlled by the ZRF installed between the lens unit and the image sensor. Thus, an image having excellent sharpness and color reproducibility can be obtained. |