1. A method of repairing scratches in digital images, the method comprising: calculating a brightness difference between a selected pixel and one of neighboring pixels surrounding the selected pixel; counting the number of abnormal pixels among the neighboring pixels; designating as particular pixels the selected pixels surrounded by the abnormal pixels, wherein the number of abnormal pixels is more than a predetermined value; dividing an area surrounding each particular pixel into a plurality of blocks, and calculating a brightness difference between the blocks; finding out scratch pixels from the particular pixels based on brightness difference between blocks; and subdividing and filling up an area surrounded by scratch pixels.