Interrelation between gloss and texture perception of 2.5D-printed surfaces

Baar, Teun; Samadzadegan, Sepideh; Urban, Philipp; Segovia, Maria V. Ortiz

doi:10.2352/issn.2470-1173.2016.9.mmrma-363

Cited by 5 publications

(7 citation statements)

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“…They showed that perceived gloss was non-linearly related to changes in the amplitude of mesoscopic surface shape, but these perceived changes could be explained by weighted linear combinations of observer judgments of specular sharpness, contrast and coverage within the image (see also Marlow and Anderson, 2013). Baar et al (2016) used physical surface samples to examine the relationship between gloss perception and mesoscopic surface shape. Similar to some studies using rendered images (e.g., Ho et al, 2008), they found that surfaces with greater mesoscopic shape (but equated sheen) were perceived as glossier.…”

Section: Introductionmentioning

confidence: 99%

Effects of Shape, Roughness and Gloss on the Perceived Reflectance of Colored Surfaces

et al. 2020

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This study examined perceptual differentiation of specular from diffuse shading for the recovery of surface color and gloss. In Experiment 1, we parametrically varied the mesoscale relief height of globally planar surfaces, specular sharpness and the orientation of the surface relative to the light source. We obtained psychophysical matches for perceived color saturation and value (HSV), but also considered whether the main effects could be influenced by color space used when transforming data to perceptually-uniform CIE LCH space. Results revealed strong interactions between perceived color attributes and the lighting conditions, the structure of specular reflections, and surface relief. Declines in saturation were observed with increasing specular roughness (using an HSV color representation), but no similar decline was observed in chroma (using a CIE LCH color representation). Experiment 2 found strong negative correlations between perceived gloss and specular roughness. Perceived gloss also depended on mesoscopic relief height and orientation of the surface relative to the light source. Declines in perceived gloss moderately accounted for the variability in color saturation and value matches obtained in Experiment 1. We found information about perceived specular coverage could further improve the model's accountability of perceived color saturation and lightness (Experiment 3). These findings together suggest that perceived color saturation and color value depends on the visual system's ability to distinguish the underlying diffuse shading from specular highlights in images.

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Section: Introductionmentioning

confidence: 99%

Effects of Shape, Roughness and Gloss on the Perceived Reflectance of Colored Surfaces

et al. 2020

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“…Thus, using a UV-curable inkjet printer with variable drop grayscale head, the wood texture printing derives an image quality consistent with small drop high resolution imaging. The gloss and texture are closer to people's perception of real wood, as in the original image [23,24]. The schematic process shown in Figure 10 reveals that a real wood texture is replicated by scanning, processing, and UV printing.…”

Section: Resultsmentioning

confidence: 72%

Digital 3D Wood Texture: UV-Curable Inkjet Printing on Board Surface

Sang

Manley

et al. 2020

Coatings

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Natural wood textures are appreciated in most forest products industries for their appealing visual characteristics including grain and color, but also their fine surface tactile sensation. The following presents an ultraviolet (UV)-curable inkjet technology printing 3D wood texture on wood-based substrate by image processing and surface treatment. The UV printing was created from scanned digital images of a real wood surface and processed in graphics software. The images were converted to grayscale graphics by selecting color range and setting the parameter of fuzziness. The grayscale images were printed as 3D texture height simulation on the substrates and coated by printing the color images as texture mapping. Based on these wood texture digital images, the marquetry art is also considered in the images processing design to increase the artistry of the printed materials. The medium-density fiberboard (MDF) coated printing marquetry surface replicate realistic natural 3D wood texture surface layers on wood-based panels and imitated the effect of handcrafted wood art works. This study proves that printing 3D texture surface material is creative and valuable with ecologically friendly, low-consumption UV-curable inkjet technology and provides a feasible and scalable approach in flooring/furniture/decorative architectural panels.

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“…This study, made in computer-based simulation, has become a reference for other works addressing the influence of surface geometry on perceived specularity using physical samples. In Baar et al [8] physical samples of surfaces varying in surface gloss and texture levels were created by a 2.5D printing system, confirming by psychophysical experiments a slight influence of surface texture on the perception of surface glossiness.…”

Section: Introductionmentioning

confidence: 85%

“…Colour-samples with 13 different varnish levels were created and tested with psychophysical experiments and measurements. The relationship between perceived texture (or bumpiness) of a printout and the amount of specular reflection is perceived as gloss variations, is investigated in [8]. A series of patches was printed using an Océ 2.5D prototype printing system that had the capability of printing several types of textures in different elevations and various gloss levels by means of varnish deposition.…”

Section: Elevated Printing or 25d Printingmentioning

confidence: 99%

“…Gloss can affect the perception of global shape by making surfaces appear more curved, or convex surfaces concave. Similarly, shape can affect judgments of surface reflectance, making textured surfaces appear glossier [8]. In their study on the perception of gloss and texture Ho et al [6] modelled how 3D texture or bumpiness and specularity (glossiness) affect the perception of the other.…”

Section: Introductionmentioning

confidence: 99%

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Influence of procedural noise on the glossiness of 2.5D printed patches

Vazquez¹,

Šarić²,

Klein³

et al. 2021

cic

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Perlin noise, a type of procedural noise, was used for the design of elevation files for 2.5D printing. This printing method uses elevation data from a height map to create physical relief by superimposing layers of ink. In this experiment, the grayscale values of noise functions were used as elevation values to build different surface structures in UV curable ink by 2.5D printing. Printed samples with varying levels of Perlin noise were created and their reflectance properties were studied by measuring the values of specular gloss. The roughness and specular gloss of the printed surfaces were effectively influenced when varying the persistence and octaves of the noise functions. The aim of implementing the procedural approach to a high-resolution printing method has been to explore the reflectance properties of custom noise functions when transferred to the physical realm. This might contribute to better understand the effect of surface structure on the appearance of materials. Potentially, this approach will enable the use of relief printing to produce structures with a more natural appearance and a desired gloss value by using a low-cost computing process.

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Interrelation between gloss and texture perception of 2.5D-printed surfaces

Cited by 5 publications

References 0 publications

Effects of Shape, Roughness and Gloss on the Perceived Reflectance of Colored Surfaces

Effects of Shape, Roughness and Gloss on the Perceived Reflectance of Colored Surfaces

Digital 3D Wood Texture: UV-Curable Inkjet Printing on Board Surface

Influence of procedural noise on the glossiness of 2.5D printed patches

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