Quantization is the process of constraining an input from a continuous or otherwise large set of values (such as the real numbers) to a discrete set (such as the integers). The term quantization may refer to: Signal processing Quantization (signal processing) Quantization (image processing) Color quantization Quantization (music) Physics Quantization (physics) Canonical quantization Geometric quantization Discrete spectrum, or otherwise discrete quantity Spatial quantization Charge quantization Computing The process of making the signal discrete in amplitude by approximating the sampled signal to the nearest pre-defined level is called as quantization Linguistics Quantization (linguistics) Similar terms Quantification (science)