The paper presents the analysis of efficiency of two original approaches to the construction of the sets of linear
local features (LLF), which are used for digital signal and image processing. The first approach is based on
generating of LLF set, which consists of separately constructed efficient LLFs, each of which has its own
algorithm for feature calculation. The second approach assumes the construction of an efficient LLF set, which
has a single algorithm for joint simultaneous computation of all features. The analysis is carried out by several
indicators that characterize the computational and qualitative properties of the constructed LLFs
