Sealing Clay Text Segmentation Based on Radon-Like Features and Adaptive Enhancement Filters

<div>Edge extraction results using canny operator. (a) The edge information of input image <svg height="8.79011pt" id="M91" style="vertical-align:-0.04980946pt" version="1.1" viewbox="-0.0498162 -8.7403 5.03206 8.79011" width="5.03206pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M338 0V35C263 42 255 49 255 133V516C255 602 263 608 338 615V650H37V615C112 608 121 602 121 516V133C121 49 112 42 37 35V0H338Z" id="g13-71"></path><glyph.data ascent="1024" descent="-360" horiz-adv-x="378" vert-adv-y="378"></glyph.data></g></svg>; (b) the edge information of the maximum energy image <svg height="8.79011pt" id="M92" style="vertical-align:-0.04980946pt" version="1.1" viewbox="-0.0498162 -8.7403 7.68096 8.79011" width="7.68096pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M535 173C517 129 499 97 479 75C456 50 421 43 369 43C331 43 297 45 279 53C259 63 255 87 255 135V309H322C407 309 420 305 433 233H469V434H433C420 364 406 359 322 359H255V571C255 604 259 606 296 606H344C400 606 427 599 444 581C462 563 475 530 484 495L521 500C517 562 512 632 511 650H40V615C111 609 121 604 121 517V133C121 48 111 42 26 35V0H536C544 30 564 121 571 166L535 173Z" id="g13-67"></path><glyph.data ascent="1024" descent="-360" horiz-adv-x="581" vert-adv-y="581"></glyph.data></g></svg>.</div>

Mathematical Problems in Engineering

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Figure 5

Figure 5: Sealing Clay Text Segmentation Based on Radon-Like Features and Adaptive Enhancement Filters 