【正文】 浙 江 理 工 大 學(xué) 信 息 電 子 學(xué) 院 畢業(yè)論文 (設(shè)計 )誠信聲明 我謹(jǐn)在此保證：本人所寫的畢業(yè)論文 (設(shè)計 )，凡引用他人的研究成果均已在參考文獻或注釋中列出。論文 (設(shè)計 )主體均由本人獨立完成，沒有抄襲、剽竊他人已經(jīng)發(fā)表或未發(fā)表的研究成果行為。如出現(xiàn)以上違反知識產(chǎn)權(quán)的情況，本人愿意承擔(dān)相應(yīng)的責(zé)任。 聲明人 (簽名 )： 年 月2 摘 要 防水透濕性織物的用途很廣，比如雨衣、防護衣、軍用服裝、消防服等等 ，所以對織物防水性能的檢測與評定顯得十分重要的。 目前防 水性能的評定主要依賴于人工進行，費工、費時，勞動強度大，并容易受人的生理、心理和社會環(huán)境等因素的影響，導(dǎo)致評定的結(jié)果偏差較大，一致性不理想，所以尋找客觀的評定方法顯得十分重要。 本課題采用計算機處理技術(shù)，對檢測樣本的數(shù)碼圖片進行圖像處理， 并采用了邊緣檢測技術(shù)檢測測試區(qū)域和潤濕區(qū)域，面對本項目最大的難題 —— 對有反光、色彩不勻、潤濕區(qū)域反差不大的圖片，本文運用了大津法 (Otsu)和 Canny 算子邊緣檢測相結(jié)合的算法實現(xiàn)了測試區(qū)域和潤濕區(qū)域邊緣的自動檢測功能。為了實現(xiàn)自動評級分等，本文根據(jù)檢測標(biāo)準(zhǔn)圖建立了潤濕比 (即潤濕區(qū)域面積和檢測區(qū)域面積之比 )與等級、分值的關(guān)系曲線，實現(xiàn)了將用文字、圖片描述的標(biāo)準(zhǔn)的數(shù)字化。 測試時只需根據(jù)檢測結(jié)果 計算潤濕比，即可根據(jù)潤濕比與等級、分值的關(guān)系曲線求出等級和分值， 實現(xiàn)了對織物潤濕邊緣的快速識別和對織物防水性能的自動評定。 利用計算機的自動評定技術(shù)，不僅實現(xiàn)了客觀的評定，同時也提高了檢測效率，所以本課題的研究很有實際的意義。 關(guān)鍵詞 ： 織物防水性能； Hough 變換； Canny 算法；等級評定；自動檢測； AATCC標(biāo)準(zhǔn) ABSTRACT The use of waterproof and moistureperable fabric is very broad, such as raincoats, protective clothing, military clothing, fire service, etc. So the assessment of waterproof fabric is very important. Currently, the assessments of waterproof performance mainly rely on manual. These methods are timeconsuming and the labor intensity is too big, and they are very susceptible to the physical, psychological and social factors, which would lead to the error and undesirable consistency, so looking for an objective assessment method is very important. The subject uses puter technology, processes the sample’s digital photographs through digital image processing methods, takes the edge detection technology to detect the testing area and the wetting areal. Facing with this issues’s biggest problem the reflective, uneven color, the contrast between the testing area and wetting area of the pictures, we bine Otsu algorithm and Canny operator edge detection algorithm, plete the testing area and the wetting area edge automatic detection. In order to achieve automatic classification rating, we establish a relationship curve among the wetting ratio(wetting area and detection area,s ratio), grading and scores and make the words and the standard description of pictures into digital which is based on the testing standards. We calculat the wetting ratio according to the tested results, then work out the grading and score using the relationship curve among the wetting ratio(wetting area and detection area,s ratio), grading and scores, and we achieve the rapid identification of the right edge of the wetting fabric and automatic performance evaluation of waterproof fabric. The using of puter assessment technology, not only can achieve objective assessment, but also can improve the efficiency of detection. Therefore, the research of this subject have a great practical significance. Keywords: waterproof fabric performance。 hough transform。 Canny algorithm。 grading evaluation。 automatic detection。 AATCC standards i 目 錄 摘要 Abstract 1 課題研究的目的、意義和國內(nèi)外的研究現(xiàn)狀 .......................................... 1 織物防水性測試常用方法 ............................................................................ 2 AATCC 紡織標(biāo)準(zhǔn)的介紹 ............................................................................... 2 國外研究現(xiàn)狀 ............................................................................................. 4 國內(nèi)現(xiàn)狀 .................................................................................................... 7 2 圖像的預(yù)處理和形態(tài)學(xué)的處理 ................................................................11 圖像的灰度化 ............................................................................................11 直方圖均衡化 ........................................................................................... 12 濾波處理 .................................................................................................. 12 邊緣檢測 .................................................................................................. 13 圖像的膨脹 .............................................................................................. 14 細化 (提取骨架 ) ......................................................................................... 15 3 織物測試區(qū)域 (圓輪廓 )提取的研究及實現(xiàn) ............................................. 17 4 潤濕部分輪廓的提取 ............................................................................... 20 傳統(tǒng)的 Canny 算法 .................................................................................... 20 改進的 Canny 算法 ..................................................................................... 22 ? 值的選擇 ............................................................................................ 22 高低閾值的自動選取問題 ........................................................................ 22 填充封閉區(qū)域 ......................................................................................... 24 ii 潤濕邊界的提取 ......................................................................................... 24 圖像的腐蝕 ............................................................................................ 24 邊緣檢測 ............................................................................................... 26 5 織物防水等級評定 .................................................................................. 27 6 結(jié)論與展望 .............................................................................................. 29 結(jié)論 ........................................................................................................ 29 展望 ........................................................................................................ 29 參考文獻 ..................................................................................................... 31 致 謝 ......................................................................................................... 33 附錄 浙江理工大學(xué)信息電子學(xué)院本科畢業(yè)論文 (設(shè)計 ) 1 1 課題研究的目的、意義和國內(nèi)外的研究現(xiàn)狀 所謂防水性能是指織物外側(cè)的水不會穿透織物，浸