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Photos are an integral and certainly an important part of our lives. Often we are faced with a need to increase the clarity of digital image, for example, solving pattern recognition problems, or for other reasons. Methods of increasing the clarity of digital images are very diverse, each has its own range of applicability. However, there may be often artifacts by processing of digital image. The aim of this paper is to increase clarity of digital image with the possibility of avoiding artifacts. To achieve this aim the researchers used digital image processing algorithms, based on using different convolution matrix types. There are shown in typical images with increasing clarity of digital image what advantages is the use of combinations of these algorithms in a specific sequence. A comparative analysis of the impact of different filters to increase the clarity of digital images was conducted and gives recommendations by using them. [ABSTRACT FROM AUTHOR]