Emerging Methods for Color Image and Video Quality Enhancement
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Citation: EURASIP Journal on Image and Video Processing 2011 2010:891703
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Chroma Noise Reduction in DCT Domain Using Soft-Thresholding
The chroma noise effect seriously reduces the quality of digital images and videos, especially if they are acquired in low-light conditions. This paper describes the DCT-CNR (Discrete Cosine Transform-Chroma Nois...
Citation: EURASIP Journal on Image and Video Processing 2011 2010:323180 -
Using Adaptive Tone Mapping to Enhance Edge-Preserving Color Image Automatically
One common characteristic of most high-contrast images is the coexistence of dark shadows and bright light source in one scene. It is very difficult to present details in both dark and bright areas simultaneou...
Citation: EURASIP Journal on Image and Video Processing 2010 2010:137134 -
Automatic Segmentation and Inpainting of Specular Highlights for Endoscopic Imaging
Minimally invasive medical procedures have become increasingly common in today's healthcare practice. Images taken during such procedures largely show tissues of human organs, such as the mucosa of the gastroi...
Citation: EURASIP Journal on Image and Video Processing 2010 2010:814319 -
Automatic Level Control for Video Cameras towards HDR Techniques
We give a comprehensive overview of the complete exposure processing chain for video cameras. For each step of the automatic exposure algorithm we discuss some classical solutions and propose their improvement...
Citation: EURASIP Journal on Image and Video Processing 2010 2010:197194 -
Multidirectional Scratch Detection and Restoration in Digitized Old Images
Line scratches are common defects in old archived videos, but similar imperfections may occur in printed images, in most cases by reason of improper handling or inaccurate preservation of the support. Once an ...
Citation: EURASIP Journal on Image and Video Processing 2010 2010:680429 -
Based on Color Constancy Estimation Based on Color Constancy Estimation
We address the problem of contrast enhancement for color images. Our method to enhance images is inspired from the retinex theory. We try to estimate the illumination and separate it from the reflectance compo...
Citation: EURASIP Journal on Image and Video Processing 2010 2010:837237 -
Edge Adaptive Color Demosaicking Based on the Spatial Correlation of the Bayer Color Difference
An edge adaptive color demosaicking algorithm that classifies the region types and estimates the edge direction on the Bayer color filter array (CFA) samples is proposed. In the proposed method, the optimal ed...
Citation: EURASIP Journal on Image and Video Processing 2010 2010:874364 -
HDR Image Quality Enhancement Based on Spatially Variant Retinal Response
There is a growing demand for being able to display high dynamic range (HDR) images on low dynamic range (LDR) devices. Tone mapping is a process for enhancing HDR image quality on an LDR device by converting ...
Citation: EURASIP Journal on Image and Video Processing 2010 2010:438958 -
Video Enhancement from Multiple Compressed Copies in Transform Domain
Increasingly, we can obtain more than one compressed copy of the same video content with different levels of visual quality over the Internet. As the original source video is not always available, how to choos...
Citation: EURASIP Journal on Image and Video Processing 2010 2010:404137 -
Natural Enhancement of Color Image
A new algorithm of Natural Enhancement of Color Image (NECI) is proposed. It is inspired by multiscale Retinex model. There are four steps to realize this enhancement. At first, the image appearance is rendere...
Citation: EURASIP Journal on Image and Video Processing 2010 2010:175203 -
A Framework for the Assessment of Temporal Artifacts in Medium Frame-Rate Binary Video Halftones
Display of a video having a higher number of bits per pixel than that available on the display device requires quantization prior to display. Video halftoning performs this quantization so as to reduce visibil...
Citation: EURASIP Journal on Image and Video Processing 2010 2010:625191 -
Red-Eyes Removal through Cluster-Based Boosting on Gray Codes
Since the large diffusion of digital camera and mobile devices with embedded camera and flashgun, the redeyes artifacts have de facto become a critical problem. The technique herein described makes use of thre...
Citation: EURASIP Journal on Image and Video Processing 2010 2010:909043 -
Towards Video Quality Metrics Based on Colour Fractal Geometry
Vision is a complex process that integrates multiple aspects of an image: spatial frequencies, topology and colour. Unfortunately, so far, all these elements were independently took into consideration for the ...
Citation: EURASIP Journal on Image and Video Processing 2010 2010:308035 -
Multiplicative Noise Removal via a Novel Variational Model
Multiplicative noise appears in various image processing applications, such as synthetic aperture radar, ultrasound imaging, single particle emission-computed tomography, and positron emission tomography. Henc...
Citation: EURASIP Journal on Image and Video Processing 2010 2010:250768