Glossary

Whether you are a seasoned professional or an enthusiast, Porolis Glossary is an invaluable resource that will enhance your understanding, streamline your research, and enrich your communication within the gemstone industry. With our expertise in photomicrography, AI and blockchain, you also learn specialized knowledge on how digital gemmology is applied and transforming the industry.

# A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Deep Learning

Deep learning is part of a broader family of AI and machine learning methods based on artificial neural networks with representation learning. In other words, deep learning models can learn to classify concepts from images, text or sound.

Delta-E (or ∆E)

This parameter is used to indicate the total colour difference for all uniform colour spaces. The total colour difference (Delta E) is a single number that expresses the magnitude (size, degree, amount) of difference between two colours.

Diffused Light

Nondirectional or scattered light.