Joint Method of Interference Suppression and Super-Resolution for Chinese Characters Image with Interference

Figure 2

Preprocessing experiment I on Chinese characters image with dark background. (a) Original Chinese characters image with dark background. (b) Retained reflectance layer using layer separation method [15]. (c) Reflectance layer after three operations of wavelet decomposition [16], image smoothing [17], and wavelet synthesis [16]. (d) Final preprocessing result when (c) after three operations of gray-scale conversion, background processing, and median filtering.

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