The present invention relates to an image processing method using sensor characteristics and a system thereof, which can process an image taken by using an X-ray, etc. The method and the system of the present invention can take an X-ray image for medical care, particularly for dental treatment by changing a dose according to imaging conditions and can individually apply image processing elements corresponding to each dose in image processing, thereby displaying the optimal image. The image processing method of the present invention comprises the steps of: receiving imaging data and dose data from an X-ray imaging device and performing image processing on the imaging data by an image processing device.COPYRIGHT KIPO 2016본 발명은 X선 등을 이용하는 촬영된 영상을 처리하는 것으로, 의료용, 특히 치과 치료용으로 이용되는 X선 등 영상촬영시 촬영 조건에 따라 선량을 변화하면서 촬영하게 되며, 영상처리에 있어서 선량별로 대응되는 영상처리 요소들을 개별 적용함으로써 최적의 영상이 표시되도록 하는 센서특성을 이용한 영상처리방법 및 그 시스템에 관한 것이다.