用MATLAB语言编程实现频域理想低通滤波(ILPF),二阶巴特沃斯低通滤波(BLPF)(n=2),高斯低通滤波(GLPF),要求打印出原始图像及其傅立叶频谱,给出滤波后的结果图像,打印程序清单,并给出注释。
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高斯低通滤波器 Gaussian filters ; Gaussian Lowpass Filters ; Gauss low frequency filter
二维高斯低通滤波器 GIPF
二维的高斯低通滤波器 Gaussian Lowpass Filter
低通高斯滤波器 low pass digital Gauss filter
The paper introduces digital water marking’s basic theories and DCTalgorithms that can realize watermarking embedding and extraction. In the MATLABenvironment,we achieve digital watermark’s extraction after Gauss low-pass filtering,and test its robustness.
本文介绍了数字水印的基本原理和实现数字水印嵌入和提取的DCT算法,并在matlab环境下,对高斯低通滤波后的图像实现了水印的提取,测试了它的鲁棒性。
参考来源 - 数字水印的高斯低通滤波鲁棒性测试The paper introduces digital water marking’s basic theories and DCTalgorithms that can realize watermarking embedding and extraction. In the MATLABenvironment,we achieve digital watermark’s extraction after Gauss low-pass filtering,and test its robustness.
本文介绍了数字水印的基本原理和实现数字水印嵌入和提取的DCT算法,并在matlab环境下,对高斯低通滤波后的图像实现了水印的提取,测试了它的鲁棒性。
参考来源 - 数字水印的高斯低通滤波鲁棒性测试·2,447,543篇论文数据,部分数据来源于NoteExpress
针对肝脏B超声图像的特点,本文在对图像进行预处理时采用了高斯低通滤波与灰度拉伸相结合的技术。
For the feature of the liver B-ultrasound image, we adopt the Gaussian low-pass filter and contrast-stretching transformation methods.
当图像(宿主信息)遭到加噪、高斯低通滤波、剪切等攻击后,其可视度、提取的水印图像与原始水印图像的类似度都是十分令人称心的;
When the image (host information) is added a noise, gaussian low-pass filter, shear attacks, the mandible, extract the original watermark image watermark image and the similarity is very satisfactory;
并且利用零阶开环高斯滤波算法,对低通滤波图像的边缘进行了修正。
The algorithm of zero-order Gaussian filtering for an open profile (GFO) was used to correct the edge of the filtered image.
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