MATLAB图像分割算法及其应用的研究
毕业论文关键词： 图像分割;图像预处理;阈值法;边缘检测;区域检测;分水岭变换
Research On Image Segmentation Algorithm And Its Application
Abstract: Image segmentation is the purpose of the image space into meaningful regions, according to certain principle, an image is pided into a number of specific, the unique nature of part or subset, and then extract the target of interest.At present, there are hundreds of segmentation algorithm for image segmentation techniques, based on the hundreds of segmentation algorithm enumerates four kinds of basic, practical, representative of the segmentation algorithm is introduced;edge detection, threshold processing, based on region segmentation, watershed transform.In the study of the application of image segmentation in the image, people often need some preprocessing such as color change of image gray, two value image, brightness image transform, image noise processing, these pretreatments are to eliminate irrelevant images of real information, information recovery of useful, enhance the detectability of relevant information.Image segmentation is widely used,the article is aimed at some application of image segmentation in medical science,regional growth in the application of welding porosity detection and introduces the application of image segmentation in vehicle license plate recognition based on;and pointed out that the image segmentation in the future development trend.
Keywords: Image segmentation;Image preprocessing; Threshold method;
Edge detection;Region detection; Watershed transform
目录
摘要 i
Abstract i
目录 iii
1 绪论 1
1.1 图像分割的含义及介绍 1
1.2 发展趋势 2
2 图像预处理 3
2.1 图像预处理 3
2.2 图像的灰度转换 3
2.2.1 彩色图像转换灰度图像的原理 3
2.2.2 彩色图像转换灰度图像的MATLAB实现 3
2.3 图像的二值化 4
2.3.1 二值图像的原理 4
2.3.2 二值图像的MATLAB实现 4
2.4 亮度转换 5
2.4.1 亮度变换函数 5
2.4.2 函数imadjust 6
2.5 平滑滤波 6
2.5.1 领域平均法的原理 6
2.6 图像的锐化滤波 7
2.6.1 线性锐化滤波 8
3 图像分割的典型算法 9
3.1 边缘检测算法 9
3.1.1 LOG（Laplacian-Gauss——拉普拉斯高斯）算子 9