1. A method of removing a moving part from a video stream image of a given scene, the method comprising: obtaining a plurality of frame-series images of a scene, each image comprising a moving part and a static part; comparing the plurality of frame-series images to identify parts of the scene which are static for a plurality of frames; histogramming the frame-series images in order to remove noise therefrom, wherein the histogramming comprises producing for each pixel a pixel confidence value representative of the ratio of a quantity of hits for a most common pixel color for the pixel and a total number of hits for the pixel, where each hit is associated with a histogram entry specific to the pixel and one of the frame-series images; and building a single image of the scene comprising substantially a part of the scene identified as static by combining the histogrammed plurality frame series images to build the single image.