Glossy Appearance Editing for Heterogeneous Material Objects

Manabe, Yusuke; Tanaka, Midori; Horiuchi, Takahiko

doi:10.2352/j.imagingsci.technol.2021.65.6.060406

Cited by 5 publications

(4 citation statements)

References 20 publications

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“…1062-3701/2022/66(5)/050403/15/$25.00 illumination and surface reflectance properties to determine the perception of gloss by the observer [3][4][5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

“…However, this manipulation requires trial and error during the editing process because the physical function is not clearly understood. In a previous study, the authors proposed a method using color space and object reflectance characteristics to edit the glossiness of the object surfaces of various materials in digital images [5]. This method was applied to test images containing objects of various materials.…”

Section: Introductionmentioning

confidence: 99%

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Bumpy Appearance Editing of Object Surfaces in Digital Images

Manabe¹,

Tanaka²,

Horiuchi³

2022

jist

Self Cite

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Objects in nature have diverse appearances, and appearance is one of the elements constituting the unique visual aspect of an object. However, previous studies have shown that when an object is represented as a digital image, its appearance can change compared to the real object depending on the material. In this study, the focus was on the "bumpiness" of the object surface, whereby a method was proposed to edit the bumpiness of the object in the image. First, the statistics obtained from images were analyzed in relation to the sensibility value of the bumpiness perceived by humans. Since the statistics on the original image could not fully explain the perception of bumpiness, analyses were conducted on multiscale images. The results suggested that the mean, standard deviation, and top, defined as the average of the luminance values within the top 10 [percentile], were highly influential as cues for bumpiness perception. The results also indicated that the components in the range of 5-65 [cycles per image-width] were highly influential. Based on these analysis results, a method is proposed to edit bumpiness perception by modulating components in the low and medium frequency bands. The effectiveness of the proposed method is demonstrated by image modulation experiments on objects of various materials.

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“…1062-3701/2022/66(5)/050403/15/$25.00 illumination and surface reflectance properties to determine the perception of gloss by the observer [3][4][5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Bumpy Appearance Editing of Object Surfaces in Digital Images

Manabe¹,

Tanaka²,

Horiuchi³

2022

jist

Self Cite

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show abstract

“…Reconstruction of the appearance of objects with different material properties, such as color and gloss, under different illumination colors, or from different illumination directions, is often necessary in daily life settings. The creation of plausible novel object appearances under different conditions is called material object recoloring, 1,2 appearance control, 3–5 or appearance editing 6 . Previous studies have used a three‐dimensional (3D) color space as the control space for the appearance reconstruction of color images.…”

Section: Introductionmentioning

confidence: 99%

“…appearance control, [3][4][5] or appearance editing. 6 Previous studies have used a three-dimensional (3D) color space as the control space for the appearance reconstruction of color images.…”

mentioning

confidence: 99%

Appearance estimation and reconstruction of glossy object surfaces based on the dichromatic reflection model

Tominaga

Yong

2022

Color Research & Application

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We propose an approach for estimating and reconstructing the material appearance of objects based on the spectral image data acquired in complex illumination environments with multiple light sources. The object appearance can be constructed with various material properties such as spectral reflectance, glossiness, and matteness under different geometric and spectral illumination conditions. The objects are assumed to be made of an inhomogeneous dielectric material with gloss or specularity. The color signals from the object surface are described by the standard dichromatic reflection model, which consists of diffuse and specular reflections, where the specular component has the same spectral composition as the illuminant. The overall appearance of objects is determined by a combination of chromatic factors, based on the reflectance and illuminant spectra, and shading terms, which represent the surface geometries of the surface illumination. Therefore, the appearance of a novel object can be reconstructed by modifying the chromatic factors and shading terms. The method for appearance estimation and reconstruction comprises four steps: (1) illuminant estimation, (2) spectral reflectance estimation, (3) shading term estimation and region segmentation, and (4) appearance reconstruction based on the reflection model. The proposed approach is validated in an experiment in which objects of different materials are illuminated using different light sources. We demonstrate typical reconstruction results with novel object appearances.

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Appearance Beyond Colour

Gigilashvili,

Thomas

2023

Fundamentals and Applications of Colour Engineering

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Glossy Appearance Editing for Heterogeneous Material Objects

Cited by 5 publications

References 20 publications

Bumpy Appearance Editing of Object Surfaces in Digital Images

Bumpy Appearance Editing of Object Surfaces in Digital Images

Appearance estimation and reconstruction of glossy object surfaces based on the dichromatic reflection model

Appearance Beyond Colour

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