scholarly journals Implementing directional reflectance in a colour managed workflow

2020 ◽  
Vol 2020 (1) ◽  
pp. 119-123
Author(s):  
Tanzima Habib ◽  
Phil Green ◽  
Aditya Sole

This paper implements an appearance rendering workflow using the iccMAX architecture with the aim of reproducing the directional appearance of surface colours on a display. In previous work, the prints were measured bidirectionally using an image-based measurement setup, and the bidirectional reflectance distribution function of the materials was estimated using the well-established Ward reflectance model. This function was applied in a colour managed workflow using the ICC.2 architecture to render the appearance of the prints on a display. The seven used as samples to the renderings.

Open Physics ◽  
2011 ◽  
Vol 9 (5) ◽  
Author(s):  
Andrej Mihálik ◽  
Roman Ďurikovič

AbstractMeasurement of the appearance of an object consists of a group of measurements to characterize the color and surface finish of the object. This group of measurements involves the spectral energy distribution of propagated light measured in terms of reflectance and transmittance, and the spatial energy distribution of that light measured in terms of the bidirectional reflectance distribution function (BRDF). In this article we present the virtual gonio-spectrophotometer, a device that measures flux (power) as a function of illumination and observation. Virtual gonio-spectrophotometer measurements allow the determination of the scattering profile of specimens that can be used to verify the physical characteristics of the computer model used to simulate the scattering profile. Among the characteristics that we verify is the energy conservation of the computer model. A virtual gonio-spectrophotometer is utilized to find the correspondence between industrial measurements obtained from gloss meters and the parameters of a computer reflectance model.


2018 ◽  
Vol 38 (10) ◽  
pp. 1029001 ◽  
Author(s):  
史卫朝 Shi Weichao ◽  
郑建明 Zheng Jianming ◽  
李言 Li Yan ◽  
李旭波 Li Xubo ◽  
安倩楠 An Qiannan

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