Abstract
This paper first briefly summarizes the imaging principle and focusing principle of digital image processing automatic image focusing, then expounds the digital image processing automatic image focusing evaluation function from the aspects of image information entropy function, gray gradient function, frequency domain evaluation function, other evaluation functions. Finally, the digital image processing window area selection and focus search algorithm are described from the aspects of depth of field and focal depth, algorithm selection, algorithm improvement direction and so on.
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Jia, R., Tang, J. (2022). Analysis and Comparison of Automatic Image Focusing Algorithms in Digital Image Processing. In: Hung, J.C., Yen, N.Y., Chang, JW. (eds) Frontier Computing. FC 2021. Lecture Notes in Electrical Engineering, vol 827. Springer, Singapore. https://doi.org/10.1007/978-981-16-8052-6_139
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DOI: https://doi.org/10.1007/978-981-16-8052-6_139
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