【正文】 research has been the digital image processing technology research hot spots and focus. This paper focuses on image segmentation algorithms are analyzed, classified and summarized. Application of Matlab simulation and experiments, based on L * a * b color space is divided main functions used color space conversion functions makecform and applyccform, by calculating the distance between the image pixels and pixel sample to determine the pixel color segmentation. Image segmentation based on texture filter mainly use entropyfilt function to create a texture image using bwareaopen function displays an image texture bottom texture. Because of the plexity of the texture features of each algorithm when processing analysis of texture features will have its flaws and limitations. Using edge detection method for cell image segmentation experimental results pared with the traditional method, contour extraction more accurate, and the greatest degree of retention of the internal contours of the nucleus. Also pointed out that the thresholdbased segmentation method, based on the edge of the segmentation method, based on the characteristics of various types of region segmentation method method, choose different segmentation algorithms for the different applications and different conditions of image data provides some basis. Keywords: Matlab Image segmentation Segmentation algorithm 西安石油大學(xué) 本科 畢業(yè)設(shè)計(jì) （論文） 西安石油大學(xué) 本科 畢業(yè)設(shè)計(jì) （論文） I 目錄 目錄 1 前 言 ...................................................................................................................................1 圖像分割概述 .......................................................................................................... 1 研究背景及目的 ...................................................................................................... 1 論文 內(nèi)容及結(jié)構(gòu) .......................................................................................................2 2 MATLAB 簡介 ..................................................................................................................3 MATLAB 軟件介紹 ................................................................................................. 3 MATLAB 概況 ......................................................................................................... 3 MATLAB 技術(shù) 特點(diǎn) ..................................................................................................3 3 圖像分割 技術(shù)概述 .............................................................................................................6 圖像 分割的定義 ....................................................................................................... 6 圖像分割的幾種方法 ............................................................................................... 6 閾值分割 ........................................................................................................ 6 區(qū)域分割 ........................................................................................................ 7 邊緣分割 ........................................................................................................ 8 直方圖法 ........................................................................................................ 9 圖像分割算法的分析比較 .............................................................................. 9 本章小結(jié) .................................................................................................................. 13 4 圖像分割 仿真實(shí)驗(yàn) ........................................................................................................... 14 L*a *b 空間的彩色分割 .................................................................................. 14 Lab 顏色空間 .............................................................................................. 14 顏色空間轉(zhuǎn)換 ............................................................................................. 15 圖像的空間彩色分割 .................................................................................. 15 基于圖像 紋理的圖像分割 ............................................................................... 19 圖像紋理的定義 ......................................................................................... 19 圖像紋理的分類 ....................................................................................... 19 圖像紋理提取方法 ................................................................................... 19 西安石油大學(xué) 本科 畢業(yè)設(shè)計(jì) （論文） II 使用 MATLAB 中的紋理濾波器分割圖像 ............................................. 19 其他 圖像分割算法的簡單實(shí)例 .................................................................... 23 閾值分割 ..................................................................................................... 25 最大信息熵算法 ....................................................................................... 27 門限分割 ..................................................................................................... 28 圖像分割檢測細(xì)胞圖像 ................................................................................. 30 本章小結(jié) ................................................................................................................ 35 5 總結(jié)與展望 ................................................................................................................... 36 參考文獻(xiàn) ......................................................................................................................... 37 致謝 ................................................................................................................................. 38 附錄 .................................................................................................................................. 39 西安石油大學(xué) 本科 畢業(yè)設(shè)計(jì) （論文） 1 1 前 言 圖像分割概述 圖像的研究和應(yīng)用中，人們往往對(duì)圖像中的某些部分感興趣，這些感興趣的部分一般