直方图图像增强技术及其、应用.docxVIP

本科毕业设计(论文)摘要数字图像处理技术在人类的日常生活、社会经济发展和国家的安全保障中扮演了极其重要的角色，它被广泛应用到人们生活与工作的各方各面。随着科学和技术地不断更新，人类进入了新的信息时代，同时图像处理技术的应用范围延伸到各种领域。趋向成熟和强大的计算机技术为图像处理学科的创新和发展提供了强有力的技术支持，为人们提供更好的服务。目的：改善图像质量，使图像得到增强。方法：利用MATLAB/GUI，采用基于贝塞尔曲线的直方图增强技术对图像进行处理，设计实现了图像的读取、直方图的变换和图像的参数调整，编译已经完成的直方图参数调整的程序并且将其转化为图形用户界面的执行文件。结果：通过直方图参数调整前后不同图像的对比，可以看出直方图增强后的曝光不足与曝光过度的图像的清晰度都显著提高，其图像质量也明显得到了改善，更加符合人眼的视觉效果。这说明直方图均衡法对于增强图像有良好的成效。结论：使用Matlab/GUI对基于贝塞尔曲线的直方图均衡化进行编程，简化了数字图像处理的设计和编程工作，并且提供了强大的技术支持。直方图增强技术可以很好地处理图像的局部细节方面，同时，通过变换贝塞尔曲线的方法来调整图像直方图能够自主控制直方图均衡化过程，操作方便、方法灵活、应用广泛，达到了通过人为的调控来实现图像增强的效果。关键词：图像增强；直方图均衡化；贝塞尔曲线；MATLAB/ GUIAbstractImage processing technologyplays a very important role in our daily life, economic development and social security in the country. And it is widely applied in every aspect of peoples life and work. As the scope of human activities continues to expand, science and technology continue to develop,the scope of application of image processing technology will continue to expand. with the increasing of computer processing capacity, digital image processingdevelopes rapidly and provides better services for people. Objective: to improve the quality of image and to enhance the image. Methods: using MATLAB/GUI technology to process the image enhancement based on histogram by Bessel curve. To design and implement of image reading, histogram transform and parameter adjustment, the completed program can be compiled into executable file. Results: by comparing the images before and after treatment, wecan see, the processed image contour definition is improved obviously, the image visual effect is also obviously improved. This shows that the histogram equalization method for image enhancement has a good effect. Conclusion: the histogram equalization based on Bessel curve of programming using Matlab/GUI, which greatly simplifies the programming work, provides a platform for digital image processing technology. Histogram enhancement can well handle the local image details. Through the method of t