Results 31 to 40 of about 34,617 (147)

Human Visual System Model-Based Optimized Tone Mapping of High Dynamic Range Images

open access: yesIEEE Access, 2021
High dynamic range (HDR) image and video technology can provide significant picture quality improvement over the standard dynamic range (SDR). However, when HDR content is represented on an SDR display, dynamic range compression may result in image ...
Nam Hoang Nguyen, Tu Van Vo, Chul Lee
doaj   +1 more source

The Modulation Technology of Chaotic Multi-Tone and its Application in Covert Communication System

open access: yesIEEE Access, 2019
With the development of communication countermeasure technology, the existing communication mode is exposed to intercept or decipher in the covert transmission of information. Therefore, the development of a new concept and principle covert communication
Yongqing Fu, Shengnan Guo, Zhixin Yu
doaj   +1 more source

Perceptual Analysis of Tone Mapping Operators

open access: yesJISR on Computing
Tone mapping is a crucial step in rendering, as it maps the High Dynamic Range (HDR) images to a Lower Dynamic Range (LDR) for display on standard devices. In this research, we address the challenge of selecting the most appropriate Tone Mapping Operator
Raazia Sosan   +4 more
doaj   +1 more source

Combining Global and Local Feature Analyses for Quality Evaluation of Tone-Mapped HDR Images

open access: yesIEEE Access, 2018
In existing literature, many tone mapping operators have been designed to convert high dynamic range (HDR) images to low dynamic range (LDR) images for visualization on the standard LDR displays.
Er-Yin Su   +3 more
doaj   +1 more source

High-Brightness Image Enhancement Algorithm

open access: yesApplied Sciences, 2021
In this paper, we introduce a tone mapping algorithm for processing high-brightness video images. This method can maximally recover the information of high-brightness areas and preserve detailed information.
Yifei Wei   +3 more
doaj   +1 more source

Deep Inverse Tone Mapping for Compressed Images

open access: yesIEEE Access, 2019
Converting a single low dynamic range (LDR) image into a high dynamic range (HDR) image, which is the so-called inverse tone mapping (ITM), is a challenging ill-posed problem since a lot of information is lost during compression and storage.
Chao Wang, Yang Zhao, Ronggang Wang
doaj   +1 more source

Enhanced Tone Mapping Using Regional Fused GAN Training with a Gamma-Shift Dataset

open access: yesApplied Sciences, 2021
High-dynamic-range (HDR) imaging is a digital image processing technique that enhances an image’s visibility by modifying its color and contrast ranges. Generative adversarial networks (GANs) have proven to be potent deep learning models for HDR imaging.
Sung-Woon Jung   +2 more
doaj   +1 more source

Detail Restoration and Tone Mapping Networks for X-Ray Security Inspection

open access: yesIEEE Access, 2020
X-ray imaging is one of the most widely used security measures for maintaining airport and transportation security. Conventional X-ray imaging systems typically apply tone-mapping (TM) algorithms to visualize high-dynamic-range (HDR) X-ray images on a ...
Hyo-Young Kim   +4 more
doaj   +1 more source

Exposure Bracketing Techniques for Camera Document Image Enhancement

open access: yesApplied Sciences, 2019
Capturing document images using digital cameras in uneven lighting conditions is challenging, leading to poorly captured images, which hinders the processing that follows, such as Optical Character Recognition (OCR).
Tao Liu   +4 more
doaj   +1 more source

HDR Image Quality Enhancement Based on Spatially Variant Retinal Response

open access: yesEURASIP Journal on Image and Video Processing, 2010
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 the tonal values of the original image from ...
Horiuchi Takahiko, Tominaga Shoji
doaj  

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