1. An apparatus for detecting precipitation on a windscreen of a motor vehicle, the apparatus comprising: a camera device configured to record a first image and thereafter a second image; a comparison device configured to produce a first comparison image by comparing the first image with the second image; and an image detection device configured to detect objects in the first comparison image, and to determine a respective apparent motion and a respective apparent motion direction of moving objects among the detected objects, and to classify some of the moving objects respectively as being either precipitation drops on the windscreen or non-precipitation objects in an outside environment of the motor vehicle based on consideration of at least the respective motion direction thereof; wherein the moving objects include first moving objects of which the respective motion direction includes a lateral or horizontal motion component, and second moving objects of which the respective motion direction does not include a lateral or horizontal motion component, and wherein the image detection device is further configured so that the classifying of the moving objects based on consideration of the respective motion direction thereof comprises ignoring or filtering-out the first moving objects and further classifying only the second moving objects as being either the precipitation drops or the non-precipitation objects.