.png){kind=icon}
返回
Digital Image Noise Estimation Using DWT Coefficients
.png){kind=icon}
PRE
AI
DOI：10.1109/TIP.2021.3049961.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
Noise type and strength estimation are important in many image processing applications like denoising, compression, video tracking, etc. There are many existing methods for estimation of the type of noise and its strength in digital images. These methods mostly rely on the transform or spatial domain information of images. We propose a hybrid Discrete Wavelet Transform (DWT) and edge information removal based algorithm to estimate the strength of Gaussian noise in digital images. The wavelet coefficients corresponding to spatial domain edges are excluded from noise estimate calculation using a Sobel edge detector. The accuracy of the proposed algorithm is further increased using polynomial regression. Parseval's theorem mathematically validates the proposed algorithm. The performance of the proposed algorithm is evaluated on a standard LIVE image dataset. Benchmarking results show that the proposed algorithm outperforms all other state of the art algorithms by a large margin over a wide range of noise.
Keyword:
Estimation
Image edge detection
Discrete cosine transforms
Standards
Noise level
Discrete wavelet transforms
Digital images
Gaussian noise
noise estimation
DWT coefficients
edge detection
polynomial regression
AI总结
对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。
期刊
IF:
13.7
论文数:
1.0W
被引数:
8.4W
机构
暂无机构信息
引用论文
Adaptive Structural Co-regularization for Unsupervised Multi-view Feature Selection基于自适应结构协同正则化的无监督多视图特征选择
PREAI
分享收藏Image Noise Level Estimation for Rice Noise Based On Extended ELM Neural Network Training Algorithm.png)
IEEE ACCESS
OAAI
IEEE ACCESSIF3.6
OAAI分享收藏Optimal Bayesian maintenance policy and early fault detection for a gearbox operating under varying load变负载下齿轮箱的最佳贝叶斯维护策略和早期故障检测
PREAI
分享收藏The influences of habitat, landscape structure and climate on local distribution patterns of the nuthatch ( Sitta europaea L.)Oecologia
OecologiaIF0
PREAI
分享收藏
查看更多内容