A tamper device includes a shaft for driving a tamper head. The latter has a system aperture plane and an image plane and contains at least one lens that is made of a material which has a birefringence dependent on the transmission angle. Each photosensor has a different orientation with respect to a propagation vector of the flux of photons. To this end, the tool slide can be placed at an angle that is slanted with regard to the plane of the table. A report listing the location of such audio, video or image data is generated, and provided to the proprietor thereof identified by the watermark information. Also described are a method for forming a relative placement of components of an integrated circuit using a structural similarity group and a method for modifying a relative placement of components of an integrated circuit by analyzing adjacent components for shared resources.