1. A rendering device for generating a drive assistant image of around a vehicle for drive assistance, said vehicle includes a rudder angle sensor for detecting a rudder angle of the vehicle, and a plurality of image capture devices each for image capturing an area around the vehicle, and images captured thereby include an overlapped region, said rendering device comprising: an image receiving part for receiving the images captured by each of said image capture devices; a rudder angle receiving part for receiving the rudder angle detected by said rudder angle sensor; and an image processing part for performing pixel selection from the captured images received by said image receiving part according to the rudder angle received by said rudder angle receiving part, and based on a result of the pixel selection, generating said drive assistant image.