An accurate semi-automatic segmentation scheme based on watershed and change detection mask

A tool holder adapted for use with slat-like material, such as louver window panels, venetian blinds, and vertical drapes, is devised to simultaneously bring a pair of tool elements to bear against the opposing surfaces of the slat-like material. Thus, the slat-like material can be easily and quickly cleaned with a single smooth motion of the tool. The tool includes first and second handle segments which are rotatably coupled together at one end. The lower handle segment includes an integrally formed tool holding portion. The opposing upper handle segment is rotatably coupled to an adjustable tool holding element which opposes the tool holding portion of the lower handle segment. The angular orientation of the adjustable tool holding element is selectively fixed with respect to the upper handle segment so that it and the opposing tool holding portion can be aligned in a substantially parallel configuration notwithstanding the variable distance of separation therebetween. Tool elements inserted into the tool holding element and tool holding portion can thus be oriented in a mutually opposing and parallel configuration with the slat-like material disposed therebetween in contact with the operative edges of the tool elements.