Ethiopian opal was first discovered in the early 1990s and is capable of producing spectacular play-of-color in a variety of patterns and bodycolors. Some Ethiopian opals exhibit macroscopic ...

In order to understand molecular and genetic mechanism of color pattern formation, not only adult phenotypes but also processes and mechanisms of color production and pattern formation during ...

Because of their diversity, visual accessibility, and profound impact on the fitness of organisms in the wild, animal pigment patterns are one of the most fascinating traits found in nature. Although ...

A team of researchers has discovered new insights into the evolution of color patterns in frogs and toads -- collectively known as anurans. Animal color patterns can help them camouflage with their ...

Abstract: It is popular to use the conventional correlation for pattern recognition. But when using the conventional correlation, the pattern should be the gray-level pattern. In this paper, we ...