Results 31 to 40 of about 35,286 (256)

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

Scene-based imperceptible-visible watermarking for HDR video content [PDF]

open access: yes, 2019
This paper presents the High Dynamic Range - Imperceptible Visible Watermarking for HDR video content (HDR-IVW-V) based on scene detection for robust copyright protection of HDR videos using a visually imperceptible watermarking methodology.
Garcia-Ugalde, F.   +2 more
core   +1 more source

HUNGARIAN SENTENCE INTONATION [PDF]

open access: yes, 1988
this paper differs from the usual mechanisms like Tone Mapping (Williams 1971), Well-Formedness Conditions (Goldsmith 1976), etc. essentially only in having this `once only' property.
Kornai, András, KÁLMÁN, L
core   +2 more sources

A 148dB focal-plane tone-mapping QCIF imager [PDF]

open access: yes, 2012
http://digital.csic.es/handle/10261/84304This paper presents a QCIF HDR imager where visual information is simultaneously captured and adaptively compressed by an in-pixel tone-mapping scheme [1].
Liñán Cembrano, Gustavo   +2 more
core   +1 more source

BLIND CONTRAST ENHANCEMENT ASSESSMENT BY GRADIENT RATIOING AT VISIBLE EDGES

open access: yesImage Analysis and Stereology, 2011
The contrast of outdoor images acquired under adverse weather conditions, especially foggy weather, is altered by the scattering of daylight by atmospheric particles.
Nicolas Hautière   +3 more
doaj   +1 more source

High-dynamic range tone-mapping algorithm for focal plane processors [PDF]

open access: yes, 2011
This paper presents a Dynamic Range improvement technique which is specially well-suited to be implemented in Focal Plane Processors (FPP) due to its very limited computing requirements since only local memories, little digital control and a comparator ...
Liñán Cembrano, Gustavo   +3 more
core   +1 more source

Globally Optimized Linear Windowed Tone Mapping [PDF]

open access: yesIEEE Transactions on Visualization and Computer Graphics, 2010
This paper introduces a new tone mapping operator that performs local linear adjustments on small overlapping windows over the entire input image. While each window applies a local linear adjustment that preserves the monotonicity of the radiance values, the problem is implicitly cast as one of global optimization that satisfies the local constraints ...
Shan, Q., Jia, J., Brown, M.S.
openaire   +3 more sources

High Dynamic Range Image Watermarking Robust Against Tone-Mapping Operators [PDF]

open access: yes, 2011
High dynamic range (HDR) images represent the future format for digital images since they allow accurate rendering of a wider range of luminance values. However, today special types of preprocessing, collectively known as tone-mapping (TM) operators, are
Adami N.   +3 more
core   +1 more source

High-order wavelet reconstruction for multi-scale edge aware tone mapping [PDF]

open access: yes, 2014
This paper presents a High Order Reconstruction (HOR) method for improved multi-scale edge aware tone mapping. The study aims to contribute to the improvement of edge-aware techniques for smoothing an input image, while keeping its edges intact.
Artusi, Alessandro   +4 more
core   +2 more sources

Hierarchical tone mapping based on image colour appearance model

open access: yesIET Computer Vision, 2014
To solve the problem of low efficiency and poor effect of the current tone mapping methods for the high dynamic range images, the authors propose a hierarchical tone mapping algorithm based on colour appearance model. The discrete Gaussian kernel is used
Jinsheng Xiao   +4 more
doaj   +1 more source

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