【正文】 hresholding. 目 錄 第一章 緒論 ..........................................................1 研究背景 .......................................................1 車(chē)牌識(shí)別系統(tǒng)簡(jiǎn)介 ...............................................2 系統(tǒng)設(shè)計(jì)流程 ..............................................2 系統(tǒng)技術(shù)難點(diǎn) ..............................................3 車(chē)牌識(shí)別系統(tǒng)的研究現(xiàn)狀 .........................................4 論文的主要工作和內(nèi)容結(jié)構(gòu) .......................................5 論文的主要工作 ............................................5 論文的內(nèi)容結(jié)構(gòu) ............................................5 第二章 系統(tǒng)開(kāi)發(fā)環(huán)境及相關(guān)知識(shí) .....................................6 系統(tǒng)開(kāi)發(fā)相關(guān) ....................................................6 VC 開(kāi)發(fā)平臺(tái)簡(jiǎn)介 ...........................................6 開(kāi)發(fā)環(huán)境 ..................................................6 數(shù)字圖像基礎(chǔ) ....................................................7 何謂數(shù)字圖像處理 ..........................................7 數(shù)字圖像基本概念 ..........................................8 調(diào)色板 ....................................................9 灰度圖 ...................................................10 位圖基礎(chǔ)知識(shí) ..................................................11 設(shè)備相關(guān)位圖 .............................................11 設(shè)備無(wú)關(guān)位圖 .............................................11 第三章 車(chē)牌識(shí)別系統(tǒng) 設(shè)計(jì)與 算法研究 ...............................14 系統(tǒng)主要模塊 ...................................................14 ..................................................15 圖像灰度化 ...............................................15 圖像增強(qiáng) .................................................17 閾值選取與圖像二值化 .....................................21 平滑空間濾波 .............................................25 車(chē)牌傾斜矯正 .............................................27 車(chē)牌字符分割 .............................................30 ......................................................31 識(shí)別系統(tǒng)主界面 ...........................................31 主要模塊界面 .............................................32 第四章 總結(jié)和展望 ..................................................35 總結(jié) ..........................................................35 展望 ..........................................................36 致謝 .................................................................37 參考文獻(xiàn) ............................................................38 Contents Chapter 1 Introduction ...............................................................................................1 Research Backguround.........................................................................................1 Overview ................................................................................................................2 Design Flow ...................................................................................................2 Technical Difficulties ....................................................................................3 Research Status .....................................................................................................4 Main Work and Article Structure .......................................................................5 Main Work .....................................................................................................5 Article Structure.............................................................................................5 Chapter 2 Develop Environment and Related Knowledge ............................6 System Development .............................................................................................6 VC Develop Platform ....................................................................................6 Develop Environment ....................................................................................6 Digital Image Processing ...................................................................................7 Digital Image Processing Defination .............................................................7 Digital Image Concept ...................................................................................8 Palette ............................................................................................................9 Gray Image ..................................................................................................10 Bitmap Basic Knowledge ....................................................................................11 Device Dependent Bitmap ...........................................................................11 Device Independent Bitmap ........................................................................11 Chapter 3 System Design and Algorithm Research .......................................14 System Main Modules .........................................................................................14 Module Details .....................................................................................................15 Gray Level Transformations ........................................................................15 Image Enhancement.....................................................................................17 Image Thresholding .....................................................................................21 Median Filter ...............................................................................................25 Slant Correction ...........................................................................................27 Character Segmentation ...............................................................................30 . User Interface .....................................................................................................31 System Main Interface .................................................................................31 Main Modual Interface ..........