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所在平台: Udemy |
课程主页: https://www.udemy.com/course/digital-image-processing-and-compression/
课程评论：没有评论
Coursera 课程《数字图像处理与压缩》内容概要 本课程是数字图像处理（DIP）领域的入门课程，深入浅出地介绍了 DIP 的基本概念、核心技术以及在视频处理系统中的重要作用。 课程首先介绍数字图像的处理基础，包括图像的表示方法、识别技术以及不同格式（如 RGB、灰度、YUV）之间的转换，为后续处理奠定基础。 接着，课程将重点讲解关键的图像增强技术，例如直方图均衡化、灰度级调整和对比度增强。同时，还会介绍各种滤波器的应用，包括低通滤波器、中值滤波器、边缘检测滤波器以及彩色滤波器，帮助学习者改善图像质量和提取有用信息。 在图像压缩方面，课程将重点探讨离散余弦变换（DCT）在图像压缩中的广泛应用，并将其与离散傅立叶变换（DFT）进行性能比较。 最后，课程将深入讲解 JPEG 彩色图像压缩、JPEG AI 以及 MPEG 运动视频压缩技术。此外，还会简要探讨编码比特率与图像失真之间的优化权衡，介绍深度学习和 Adam 算法在图像处理中的作用，并提供进一步学习的参考资料和彩色 JPEG 压缩代码。 本课程通过超过80张插图幻灯片、丰富的数值设计示例和演示，帮助学习者构建实用的理解。课程适合任何对迅速发展的 DIP 领域中的基础技术感兴趣的人士，并包含一次小测验。
Digital image processing (DIP) has become indispensable in many disciplines, including electronics, computer, communications, and biomedical engineering. DIP forms the workhorse of media processing systems, allowing the streaming and storage of high-quality video. Following an introduction to DIP, participants will learn how digital images can be represented, recognized, and converted to various formats (RGB, grayscale, YUV) for efficient processing. The key image enhancement techniques will then be explained, including equalization, level adjustment, and contrast, as well as the use of lowpass, median, edge detection, and color filters. The discrete cosine transform (DCT) is widely used in image compression. The third section of the course discusses the DCT and compares its performance with the discrete Fourier transform (DFT). The final section of the course focuses on JPEG color image compression, JPEG AI, and MPEG motion video compression. It will briefly discuss the optimization between coded bit rate and image distortion, the role of deep learning, and the Adam algorithm. References for further reading and color JPEG compression code are also provided. This concise course is geared toward anyone who is interested in the fundamental techniques used in the rapidly expanding field of DIP. Using over 80 illustrative slides, a practical understanding is developed through many numeric design examples and demonstrations. It also contains a short quiz.
