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A vast number of historical and badly degraded document images can be found in libraries, public, and national archives. Due to the complex nature of different artifacts, such poor quality documents are hard to read and to process. In this paper, a novel adaptive binarization algorithm using ternary entropy-based approach is proposed. Given an input image, the contrast of intensity is first estimated...
This paper presents a new and efficient framework for image contrast and color enhancement in the compressed wavelet domain such as JPEG 2000. The proposed approach is capable of improving both global and local contrast as well as preserving color consistency. The framework does not require inverse transform for image enhancement since linear scale factors are directly applied to both scaling and...
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