Color accuracy of imaging using color filters

Development of a technology for eliminating color rendering imperfections in digital photographic images

“…Color control and camera profiling technologies have limited application in the digital photographic workflow because of technological complexity of implementation [4,8]. It is impossible to achieve a satisfactory result of correction of color separation imperfections at the moment of recording optical information or in post-processing [5][6][7]. Thus, the developed method for correction of color separation imperfections with separate compensatory corrective images has been developed to provide a higher level of correction.…”

“…Thus, a compensator is formed in the red channel for the image of cyan paint. 6. Delete the remained green-channel image duplicate to prevent discrepancy in further merging of channels.…”

“…This causes inaccuracy in recording color information and subsequent inaccuracy of color rendering of the photographed object in a digital image. Studies [6,7] propose to correct color separation imperfections at the moment of digitization of an array of information from the matrix. However, it is technically feasible only in photographic devices equipped with CMOS matrices, and additionally complicates the work flow.…”

Viewing angle and imaging multispectral analysis of OLED display light emission

“…conventional optic can suffer from up to 20% reduction at short distance [16]. UMaster-MS uses 31 high quality band pass filters and offers a resolution of 10nm for all the visible range (400-700nm) (cf.…”

P.44: Display Aspect Simulation using Measured Emissive and Reflective Display Imperfections

“…Each objective is telecentric on the sensor side to ensure the same transmittance of the filters in the entire field of view of the system and collection efficiency independent of the distance to the object [15]. For color measurements dedicated color filters are designed for each CCD sensor for optimum color accuracy [16]. For display simulation it is important to measure all the surface of the display with an incidence angle near normal.…”