An energy restricted image processing method under power constrained condition is important. In this paper, we analyze bit plane analysis and apply this method to energy efficient image processing method. We investigate number of bit cases and their corresponding object and subjective performance such as CPSNR and S-CIELAB. Experimental results indicate that the presented method can raise energ...

A review of technical papers on the subject of the accuracy of RGB to CIELAB conversion is provided. In general, these papers concentrate on a single limiting factor, the spectral response of the camera. Even with the assumption that all other parts of the system contribute insignificantly to the error, the accuracy reported is still considerably worse than one would like from a color measureme...

The Image Systems Evaluation Toolkit (ISET) is an integrated suite of software routines that simulate the capture and processing of visual scenes. ISET includes a graphical user interface (GUI) for users to control the physical characteristics of the scene and many parameters of the optics, sensor electronics and image processing-pipeline. ISET also includes color tools and metrics based on int...

A common problem in the field of color printing is closed loop color calibration, a process which generally requires a spectrometer. Light Emitting Diodes (LED) sensors are inexpensive and effective for measuring the net reflectance of certain frequencies of light. Sensor measurement of LED reflectance can be used to estimate spectral reflectance or color value (measured in CIELAB or CIEXYZ col...

Karamucki T., Gardzielewska J., Rybarczyk A., Jakubowska M., Natalczyk-Szymkowska W. (2011): Usefulness of selected methods of colour change measurement for pork quality assessment. Czech J. Food Sci., 29: 212–218. A few selected methods of the meat colour change determination were compared with regard to their usefulness in the assessment of the quality of minced pork. The study was carried ou...

Color is one of the most effective visual variables since it can be combined with other mappings and encode information without using any additional space on the display. An important example where expressing additional visual dimensions is direly needed is the analysis of high-dimensional data. The property of perceptual linearity is desirable in this application, because the user intuitively ...

Theoretical analyses of spectral reflectances of natural surfaces suggest that their perceived colors can be well reproduced by approximations comprising combinations of three or four spectral basis functions. The aim of the present work was to assess psychophysically the number of basis functions necessary to reproduce entire natural outdoor scenes. Hyperspectral images of 20 such scenes were ...