Image edge enhancing method, image edge enhancing device and digital camera equipment

The invention discloses an image edge enhancing method, an image edge enhancing device and digital camera equipment, wherein the method comprises the following steps that any one pixel point in an image is subjected to rough edge detection; whether the pixel point is a rough edge or not is judged; the pixel point is subjected to fine edge detection; whether the pixel point is the fine edge or not is judged; the edge enhancing values of the pixel point in different directions of the fine edge and the rough edge are calculated, and in addition, the edge enhancing result of the pixel point is output; the value of the pixel point is directly output; the steps are repeatedly executed until all pixel points of the image are completely processed. According to the image edge enhancing method provided by the invention, all the pixel points of the image are subjected to rough edge judgment and fine edge judgment, and in addition, the edge enhancing result of each pixel point is obtained according to the edge enhancing values of each pixel point in different directions of the rough edge or the fine edge, so that the detail information of the image is enhanced, and the image definition is improved.