Blind measurement of blocking artifacts in images

Z Wang, AC Bovik, BL Evan - Proceedings 2000 international …, 2000 - ieeexplore.ieee.org
The objective measurement of blocking artifacts plays an important role in the design,
optimization, and assessment of image and video coding systems. We propose a new …

A locally-adaptive algorithm for measuring blocking artifacts in images and videos

F Pan, X Lin, S Rahardja, W Lin, E Ong… - … on circuits and …, 2004 - ieeexplore.ieee.org
Block transform coding is the most popular approach for image and video compression. The
objective measurement of blocking artifacts plays an important role in the design …

A simple algorithm for removing blocking artifacts in block-transform coded images

J Chou, M Crouse… - … Conference on Image …, 1998 - ieeexplore.ieee.org
Despite their widespread popularity, the JPEG and MPEG compression standards can lead
to noticeable" blocking" artifacts-artifical rectangular discontinuities in the decoded image …

DCT-domain blind measurement of blocking artifacts in DCT-coded images

AC Bovik, S Liu - … Conference on Acoustics, Speech, and Signal …, 2001 - ieeexplore.ieee.org
A method for DCT-domain blind measurement of blocking artifacts is proposed. By
constituting a new block across any two adjacent blocks, the blocking artifact is modeled as …

Quality assessment of deblocked images

C Yim, AC Bovik - IEEE Transactions on Image Processing, 2010 - ieeexplore.ieee.org
We study the efficiency of deblocking algorithms for improving visual signals degraded by
blocking artifacts from compression. Rather than using only the perceptually questionable …

A no-reference quality metric for measuring image blur

EP Ong, W Lin, Z Lu, X Yang, S Yao… - … Processing and Its …, 2003 - ieeexplore.ieee.org
In this paper, a method for measuring the perceptual quality of blurred images has been
proposed. Here, the amount of image blur is characterized by the average extent of edges in …

Blind image quality assessment for measuring image blur

X Wang, B Tian, C Liang, D Shi - 2008 Congress on Image and …, 2008 - ieeexplore.ieee.org
Blind image quality assessment refers to the problem of evaluating the visual quality of an
image without any reference. In this paper, we present a no-reference blur metric for images …

A no-reference perceptual blur metric

P Marziliano, F Dufaux, S Winkler… - … conference on image …, 2002 - ieeexplore.ieee.org
We present a no-reference blur metric for images and video. The blur metric is based on the
analysis of the spread of the edges in an image. Its perceptual significance is validated …

Analyzing spatially-varying blur

A Chakrabarti, T Zickler… - 2010 IEEE Computer …, 2010 - ieeexplore.ieee.org
Blur is caused by a pixel receiving light from multiple scene points, and in many cases, such
as object motion, the induced blur varies spatially across the image plane. However, the …

Blur detection for digital images using wavelet transform

H Tong, M Li, H Zhang, C Zhang - 2004 IEEE international …, 2004 - ieeexplore.ieee.org
With the prevalence of digital cameras, the number of digital images increases quickly,
which raises the demand for image quality assessment in terms of blur. Based on the edge …