Results 11 to 20 of about 2,237 (243)

Facial Rainbow Coloring of Plane Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2019
A vertex coloring of a plane graph G is a facial rainbow coloring if any two vertices of G connected by a facial path have distinct colors. The facial rainbow number of a plane graph G, denoted by rb(G), is the minimum number of colors that are necessary
Jendroľ Stanislav, Kekeňáková Lucia
doaj   +2 more sources

Facial Incidence Colorings of Embedded Multigraphs

open access: yesDiscussiones Mathematicae Graph Theory, 2019
Let G be a cellular embedding of a multigraph in a 2-manifold. Two distinct edges e1, e2 ∈ E(G) are facially adjacent if they are consecutive on a facial walk of a face f ∈ F(G). An incidence of the multigraph G is a pair (v, e), where v ∈ V (G), e ∈ E(G)
Jendrol’ Stanislav   +2 more
doaj   +4 more sources

Facial [r,s,t]-Colorings of Plane Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2019
Let G be a plane graph. Two edges are facially adjacent in G if they are consecutive edges on the boundary walk of a face of G. Given nonnegative integers r, s, and t, a facial [r, s, t]-coloring of a plane graph G = (V,E) is a mapping f : V ∪ E → {1, . .
Czap Július   +3 more
doaj   +3 more sources

Guided Facial Skin Color Correction [PDF]

open access: yesSignals, 2021
This paper proposes an automatic image correction method for portrait photographs, which promotes consistency of facial skin color by suppressing skin color changes due to background colors. In portrait photographs, skin color is often distorted due to the lighting environment (e.g., light reflected from a colored background wall and over-exposure by a
Keiichiro Shirai   +5 more
openaire   +3 more sources

Influence of facial threading on various physiological parameters of the skin: non-randomized trial involving adult women in Taiwan [PDF]

open access: yesAnais Brasileiros de Dermatologia, 2018
: Background: Facial threading involves the removal of hairs to restore facial skin smoothness. However, its effectiveness has not been rigorously evaluated. Objective: To evaluate effects of facial threading on skin roughness, hydration, melanin index,
Li-Ying Lin, Shang-Chia Chiou
doaj   +1 more source

Interaction between facial expression and color [PDF]

open access: yesScientific Reports, 2017
Facial color varies depending on emotional state, and emotions are often described in relation to facial color. In this study, we investigated whether the recognition of facial expressions was affected by facial color and vice versa. In the facial expression task, expression morph continua were employed: fear-anger and sadness-happiness.
Kae Nakajima   +2 more
openaire   +2 more sources

Facial colorings using Hall’s Theorem

open access: yesEuropean Journal of Combinatorics, 2010
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Frédéric Havet   +3 more
openaire   +2 more sources

An Improved Dense CNN Architecture for Deepfake Image Detection

open access: yesIEEE Access, 2023
Recent advancements in computer vision processing need potent tools to create realistic deepfakes. A generative adversarial network (GAN) can fake the captured media streams, such as images, audio, and video, and make them visually fit other environments.
Yogesh Patel   +6 more
doaj   +1 more source

Decompositions of Plane Graphs Under Parity Constrains Given by Faces

open access: yesDiscussiones Mathematicae Graph Theory, 2013
An edge coloring of a plane graph G is facially proper if no two faceadjacent edges of G receive the same color. A facial (facially proper) parity edge coloring of a plane graph G is an (facially proper) edge coloring with the property that, for each ...
Czap Július, Tuza Zsolt
doaj   +1 more source

Facial expressions affect the memory of facial colors

open access: yesJournal of Vision
Facial color influences the perception of facial expressions, and emotional expressions bias how facial color is remembered. However, it remains unclear whether facial expressions affect daily facial color memory. The memory color effect demonstrates that knowledge about typical colors affects the perception of the actual color of given objects.
Hasegawa, Yuya   +3 more
openaire   +2 more sources

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