An Implementation of Document Image Reconstruction System on a Smart Device Using a 1D Histogram Calibration Algorithm

<table class="table-group" width="800px"><tr class="fig-image" id="a"><td><img alt="313452.fig.006a" src="https://static.hindawi.com/articles/mpe/volume-2014/313452/figures/313452.fig.006a.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(a) </b>Gravity point detection result</td></tr></table></td></tr><tr class="fig-image" id="b"><td><img alt="313452.fig.006b" src="https://static.hindawi.com/articles/mpe/volume-2014/313452/figures/313452.fig.006b.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(b) </b>Rotation angle <svg height="16.450001" id="M25" style="vertical-align:-3.20526pt" version="1.1" viewbox="0 0 15.1875 16.450001" width="15.1875" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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<g transform="matrix(.012,-0,0,-.012,8.525,16.25)"><path d="M495 86q-46 -47 -87 -72.5t-63 -25.5q-43 0 -16 107l49 210q7 34 8 50.5t-3 21t-13 4.5q-35 0 -109.5 -72.5t-115.5 -140.5q-21 -75 -38 -159q-50 -10 -76 -21l-6 8l84 340q8 35 -4 35q-17 0 -67 -46l-15 26q44 44 85.5 70.5t64.5 26.5q35 0 10 -103l-24 -98h2
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</svg> detection</td></tr></table></td></tr><tr class="fig-image" id="c"><td><img alt="313452.fig.006c" src="https://static.hindawi.com/articles/mpe/volume-2014/313452/figures/313452.fig.006c.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(c) </b>Yaw angle modified result</td></tr></table></td></tr></table>

<table>Yaw angle modification procedure.</table>

Mathematical Problems in Engineering

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Figure 6

Figure 6: An Implementation of Document Image Reconstruction System on a Smart Device Using a 1D Histogram Calibration Algorithm 