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...

We face colours in thousands of shades every day, but we sometimes easily ignore them. If we really want to understand the relationship between “humans and colours”, we must remember that colours have got physical characteristics as well as strong physiological and psychological impact on us. In the present study the investigation was focused on the relationship between basic emotions and colou...

Colour transfer algorithms aim to apply a colour palette, mood or style from one image to another, operating either in a threedimensional colour space, or splitting the problem into three simpler one-dimensional problems. The latter class of algorithms simply treats each of the three dimensions independently, whether justified or not. Although they rarely introduce spatial artefacts, the qualit...

We describe the automation of calculation perturbative unitarity constraints including scalars that have colour charges, and its release in SARAH 4.14.4. apply this, along with vacuum stability constraints, to a simple dark matter model colourful mediators interesting decays, show how it leads bound on thermal relic mass well below classic Griest-Kamionkowski limit.

We derive a formula for the result of the additive mixture of two colours, in double-cone space. We use NakaRushton law to combine the luminance, circular weighted averaging to combine the hue and two rules of thumb to get the resulting chromatic saturation.