基于FPGA的彩色图像增强技术研究
关键字 FPGA VHDL 彩色图像增强 直方图均衡化
毕业论文设计说明书外文摘要
Title Research on the Technology of Color Image Enhancement Based on FPGA
Abstract
The color images contain a lot of information,widely used in various field recent years.The color image enhancement is of great important in the area of image processing technology ,in order to improve the visual effect and make the image more ornamental.Histogram Equalization(HE) as an image contrast enhancement technique is widely used.By improving the visual effect of images considerably,it assists the viewer in discovering hidden image messages.FPGA(Programmable Logic Device) is an effective driver to realize real-time parallel processing of lots of video data flexibly.In this article,this characteristic is used as a solution of histogram equalization enhancement algorithm.And a real-time image histogram equalization enhancement algorithm is designed with HDL Verilog hardware language. Firstly, we compare several image enhancement algorithms, and choose one kind of. Then, the program code is written in Verilog HDL, and it is implemented in FPGA actually.Finally,do the functional and timing simulation.
Keywords FPGA VHDL Color Image Enhancement Histogram Equalization
目 次
1 绪论 1
1.1 研究背景及意义 1
1.2 国内外研究现状 1
1.3 论文章节安排 3
2 图像增强方法 4
2.1 图像增强技术 4
2.1.1 空间域图像增强 4
2.1.2 频域图像增强 5
2.1.3 直方图均衡化图像增强 5
2.2 彩色图像增强的方法 6
2.3 本章小结 8
3 FPGA硬件系统 9
3.1 FPGA概述 9
3.2 FPGA图像处理板 10
3.3 FPGA设计流程 11
3.4 Verilog HDL介绍 13
3.5 本章小结 13
4 图像增强的FPGA实现 14
4.1 设计思路 14
4.2 设计流程 14
4.3 实验结果 18
4.4 本章小结 19
结 论 21
致 谢 22
参考文献23
附录A 程序代码 24
1 绪论
1.1 研究背景及意义
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