In the paper it has been propounded and experimentally researched the linear operators that can be used to sharpen digital images or video frames distorted by a micro-motion of fixation chamber. It has been assumed that the cause of the problem, which leads to deterioration of sharpness, is a lowfrequency interference, which is exemplified by a random non-recursive filter in the form of a discrete convolution. It has been experimentally proven that the proposed stabilizer filters allow for

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... ficant visual enhancement of distorted images, with a peak-to-peak signal-to-noise ratio for the improved images higher than if using similar sharpening filters implemented in Adobe PhotoShop CS6. The corresponding masks of the proposed operators and the examples of application are given in the paper.