A double-sided cutting insert for milling, in particular for face milling, includes first and second cutting edges each having alternately disposed main lips and secondary lips which each extend between active and passive cutting corners. The first shield element includes two ferromagnetic anisotropic layers separated by a grain growth suppression layer. The apparatus and methods may be configured to map color coordinates differently depending on whether or not a pixel corresponds to a light source in an image andor has special or reserved color values. They allow any person or entity, for any purpose, to establish and control the authentic identities of things electronically, and establish relationships between these identities. In the blending region, a combination of direct and complementary interpolation is performed. Each demultiplexer receives a data signal for a specific color and sequentially supplies the data signals to sub-pixels for the specific color.