Results 61 to 70 of about 12,761 (261)

The CIELAB colour body for offset printing

open access: yes, 2003
Barvové prostory, jejich vývoj a důvody zavádění dalších prostorů. Barvové těleso CIELAB a jeho definice. Určení obecného tvaru tělesa CIELAB výpočtem hraničních křivek ve vybraných řezech.Dokončená práce s úspěšnou ...
Petríková, Lenka
core  

3D Character Reconstruction from Hand‐drawn Model Sheets

open access: yesComputer Graphics Forum, EarlyView.
Abstract Hand‐drawn model sheets are widely used in character design to define 3D shape and appearance through sparse multi‐view drawings. Reconstructing 3D characters from such sparse inputs has traditionally been challenging due to insufficient visual information.
Hyejeong Yoon   +3 more
wiley   +1 more source

Predicción del color y contenido de humedad en café cerezo mediante redes neuronales y regresión de mínimos cuadrados parciales

open access: yesCiencia Amazónica (Iquitos), 2015
La presente investigación se enfocó en el desarrollo de modelos de predicción del color en coordenadas CIELab y el contenido de humedad de café cerezo mediante la tecnología de imágenes hiperespectrales; comparando el ajuste por un modelo de regresión ...
Wilson Manuel Castro Silupu   +2 more
doaj   +1 more source

利用傅立叶变换和CIELab变换的FFT-LAB方法研究

open access: yes, 2009
结合CIELab颜色空间和傅立叶变换的优点,提出了基于傅立叶变换和CIELab变换的多源遥感影像融合方法——FFT-LAB。实验表明,该方法优于目前的GS、PCS ...
沈占锋, 陈生, 骆剑承, 李均力
core  

TreeON: Reconstructing 3D Tree Point Clouds from Orthophotos and Heightmaps

open access: yesComputer Graphics Forum, EarlyView.
Abstract We present TreeON, a novel neural‐based framework for reconstructing detailed 3D tree point clouds from sparse top‐down geodata, using only a single orthophoto and its corresponding Digital Surface Model (DSM). Our method introduces a new training supervision strategy that combines both geometric supervision and a differentiable shadow and ...
Angeliki Grammatikaki   +4 more
wiley   +1 more source

Applications of a spatial extension to CIELAB

open access: yes, 2008
We describe computational experiments to predict the perceived quality ofmulti-level halftone images. Our computations were based on a spatial color di erence metric, S-CIELAB, that is an extension of CIELAB, a widely used industry standard.
B. A. Wandell, J. E. Farrell, X-M. Zhang
core  

The Truth, the Whole Truth, and Nothing but the Truth: Automatic Visualization Evaluation from Reconstruction Quality

open access: yesComputer Graphics Forum, EarlyView.
Abstract Recent advances in AI enable the automatic generation of visualizations directly from textual prompts using agentic workflows. However, visualizations produced via one‐shot generative methods often suffer from insufficient quality, typically requiring a human in the loop to refine the outputs.
Roxana Bujack   +4 more
wiley   +1 more source

Applications of a spatial extension to CIELAB

open access: yes, 1997
We describe computational experiments to predict the perceived quality of multi-level halftone images. Our computations were based on a spatial color difference metric, S-CIELAB, that is an extension of CIELAB, a widely used industry standard.
J.E. Farrell, B.A. Wandell, X-M. Zhang
core  

BloomTree: Dynamic Coloring Techniques for Exploring Deep and Wide Tree Structures

open access: yesComputer Graphics Forum, EarlyView.
Abstract This study introduces BloomTree, an interactive Sunburst system for visualizing massive hierarchical datasets, such as the Tree of Life. Traditional static color schemes fail to maintain perceptual distinguishability when applied to millions of nodes, and managing the full tree in memory is computationally costly.
A. Tanaka, K. Wakita
wiley   +1 more source

A Spatial Extension of CIELAB for Digital Color Image Reproduction

open access: yes, 1996
We describe a spatial extension to the CIELAB color metric that is useful for measuring color reproduction errors of digital images. To compute the error, digital color images are spatially filtered using a pattern-color separable method and then ...
Brian A. W   +2 more
core  

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