Dither is an intentionally applied form of noise used to randomize quantization error, preventing large-scale patterns such as color banding in images. Dither is routinely used in processing of both digital audio and digital video data, and is often one of the last stages of audio production to compact disc.
Hepatic porphyria. Hepatic porphyrias is a form of porphyria in which the enzyme deficiency occurs in the liver. Examples include (in order of synthesis pathway): Acute intermittent porphyria. Porphyria cutanea tarda and Hepatoerythropoietic porphyria.
Porphyria disease is a rare hemoglobin disorder which is said to be caused due to hereditary factors. It is considered a hereditary disease which states abnormal metabolism of the blood pigment hemoglobin. Key Facts of Porphyria. Porphyria disease mainly affect skin or the nervous system that can cause pain in the abdomen. It is an inherited disorder caused due to gene abnormalities. Cells in patients suffering from Porphyria disease fail to change body chemicals known as porphyrins.