Abstract
As a common way of information acquisition, digital image acquisition has a wide range of applications. In daily life, due to the limitation of the scene, there will be diffuse reflection in the process of image acquisition, which leads to the presence of artifacts or highlights in the process of image acquisition and affects the quality of image acquisition. In order to suppress the above situation, the suppression effect of homomorphic filtering on artifacts is studied, and the filtering effects of ideal low-pass, Gaussian low-pass and Butterworth low-pass are compared. In Butterworth low-pass filtering, the cut-off frequency has an obvious effect on the suppression, and an adaptive cut-off frequency is designed. Through experimental comparison, the designed adaptive cutoff frequency has a good effect on the suppression of artifacts.
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