IMAGE SENSOR FOR EDGE EXTRACTION AND METHOD FOR GENERATING EDGE IMAGE USING THE SAME

摘要

PURPOSE: An image sensor for edge extraction and a method for generating an edge image using the same are provided to minimize a storage device necessary for edge extraction, thereby reducing the size of the image sensor. CONSTITUTION: A low decoder unit(30) selects each row of a pixel array(10). A column control unit(20) is connected to a column data line. The column control unit controls signals transmitted from a unit pixel. A comparison unit(40) compares the signals from the unit pixel. A determination unit(60) determines an edge by the unit pixel when a sign of the comparison result value is changed on a straight line.