: The CIECAM97s and its revision, as a colour appearance model, were applied for a series of fabrics with different colours and depths to explain their colour appearance coordinates in similar viewing conditions. The results show that due to some modifications which expand the scale, the modified model has improved capadilities in calculating chroma. Besides, the calculations were simpler for t...

in this paper, an attempt has been made to investigate the reflectance of various colours and effects of vary-ing colours on human working and production. different colours have different reflectance and energy associ-ated with it. colours play a significant role in the colour scheme of the houses, offices, factories etc. the col-ours may be seen on walls, tabletops, equipment, machines etc. in...

Information security has become a cause of concern because of the electronic eavesdropping. Capacity, robustness and invisibility are important parameters in information hiding and are quite difficult to achieve in a single algorithm. This paper proposes a novel steganography technique for digital color image which achieves the purported targets. The professed methodology employs a complete ran...

Due to the proliferation of low-cost colour devices (digital colour cameras, scanners, printers etc.) during the last few years, colour calibration has become an important issue. Such devices should faithfully reproduce colour images, but experience shows they don’t. Among the main reasons, we note the diversity of acquisition, display and printing technologies which makes standardization diffi...