APPARATUS AND METHOD FOR PREVENTING HAND-SHAKING DURING LOW LIGHT AMOUNT IN DIGITAL IMAGE PROCESSING DEVICE

An apparatus and a method for preventing hand shaking in low intensity of radiation in a digital image processor are provided to enlarge an AF window, search a bright light source from an image, adjust focus and exposure, and secure fast shutter speed, thereby minimizing hand shaking. A digital signal processor(39) comprises an AF(Automatic Focus) adjustment unit(39-1), an AE(Automatic Exposure) adjustment unit(39-3), a window size controller(39-2), and a controller(39-4). If the controller receives AF Fail by the shortage of intensity of radiation from the AF adjustment unit, the controller outputs a control signal for adjusting the size of an AF window. If the controller searches a bright light source on an expanded AF window, the controller controls the AF adjustment unit and the AE adjustment unit to perform the focus and exposure adjustment of an image. The controller secures fast shutter speed.