Field parcel images consist of multiple target regions where different field objects are always interfered each other. As a result, segmentation and feature extraction of the field parcel image are very difficult. Aiming at that, two algorithms based on edge and region were used to process field parcel images photographed by an aerial camera. The results showed that the algorithm of image edge segmentation based on differential operators could effectively detect the edge of the field parcel, but enlarged the noise of image; the algorithm of image region segmentation based on threshold could effectively remove the noise from field parcel image.