XYZLMS interim connection space for spectral image compression and reproduction

Abstract

To improve the spectral image representation and reproduction accuracy, an interim connection space (ICS) was proposed. Three offset functions were defined to make up the wave regions uncovered by the CIEXYZ color matching functions. The XYZLMS ICS was determined based on the CIEXYZ and defined offset functions. The spectral and colorimetric representation accuracy of the proposed ICS was compared to LabPQR and LabRGB with various spectral datasets as testing samples. The results indicated that the proposed ICS outperformed the other two ICS as a whole.

Spectral Color Reproduction from CIE Tristimulus Values Using a Node Address Array Selection Technique

“…The spectral reflectance is define as an object "fingerprinting" that accurately carry the fundamental color information, so spectral color reproduction could match original under arbitrary illuminants and observers [1][2][3]. However, a high-dimensional spectral data need large storage space and computational complexity.…”

Weighted LabPQR Interim Connection Space Based on Human Color Vision for Spectral Color Reproduction

“…The spectral reflectance is define as an object "fingerprinting" that accurately carry the fundamental color information, so spectral color reproduction could match originals under arbitrary illuminants and observers [1][2][3]. However, a highdimensional spectral data need large storage space and computational complexity.…”

“…However, a highdimensional spectral data need large storage space and computational complexity. In addition, the raw spectral data is not suited for spectral image processing, gamut boundary description, and spectral gamut mapping in the spectral color reproduction in many applications such as textile color, art reproduction, and printers with inks [3][4][5][6]. So it is necessary to construct an interim connection space (ICS) both for spectral color representation and reproduction.…”

“…As a matter of fact, the LabPQR ICS could well represent the spectral information with low dimension, and most of the proposed spectral gamuts mapping algorithms in LabPQR were based on the optimal method [8]. Several variations of the LabPQR had been proposed recently, such as the LabRGB color space [10] and XYZLMS color space [3]. These ICSs could be better to be compatible with the widely used colorimetric management system and spectral gamut visualization.…”

Acquiring multi-spectral images by digital still cameras based on XYZLMS interim connection space

“…It is generally believed that at least six channels are required to accurately acquire multispectral images [9] . The XYZLMS interim connection space has been proposed to accurately represent multi-spectral images [10] . If the XYZLMS values can be accurately predicted from RGB values, then multi-spectral images can be accurately acquired from the common cameras.…”