This article discusses the procedure of image masking using M-matrixes as an orthogonal basis. An overview of some classical matrix calculation algorithms like Silvester, Paley, Scarpis and other, which are common for video bases, is presented. A typical image masking processing chain is commented. Generalized masking algorithms based on new Mersenne, Euler and Fermat matrixes are considered. Examples of Portraits of Hadamard-Mersenne matrixes of 15^th and 63^rd orders with the levels of elements {1,-b} are presented. A Hadamard-Mersenne matrixes computing algorithm, including equations and formulas applied to calculate their levels, is described. The feasibility of application of such matrixes in antijamming (error-control) processing and image masking tasks is considered.