An Effective Color Addition to Feature Detection and Description for Book Spine Image Matching

<table>Two example feature keypoints. The center pixel of both keypoints has the same grayscale value of 129.6 using (<a href="https://static.hindawi.com/articles/isrn/volume-2012/945973/figures/#EEq1">1</a>).</table>

International Scholarly Research Notices

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Figure 2

Figure 2: An Effective Color Addition to Feature Detection and Description for Book Spine Image Matching 