Consonant alternation is commonly known as consonant mutation or consonant gradation. The color scale of Roman mosaics are extremely rich in gradation. One of the more important processes is the characteristic consonant gradation. He appreciates the tonal gradation, lighting, and camera movements. They used image processing techniques such as geometric correction, gradation transformation, noise removal, etc. Nouns with odd inflection have consonant gradation. The most important processes are vowel harmony and consonant gradation. Nouns with contracted inflection have consonant gradation. Finnish consonant length is also affected by consonant gradation. The climate in the Western Ghats varies with altitudinal gradation and distance from the equator. The direct sum decomposition is usually referred to as gradation or grading. These two cases are distinguished by their behaviour in consonant gradation. The final syllable is generally altered along with the gradation as well. The stem may change, however, with consonant gradation and other reasons. The rating agencies added levels of gradation to their rating systems.