Adjustment layers: Non-destructive (always editable) image adjustment placed on a layer.
Adobe gamma: A calibration and profiling utility supplied with Photoshop.
Aliasing: The display of a digital image where a diagonal or curved line appears jagged due to the square pixels.
Anti-aliasing: The process of smoothing the appearance of lines in a digital image.
Artifacts: Pixels that are significantly incorrect in their brightness or color values.
Bit: Short for binary digit, the basic unit of the binary language.
Bit depth: Number of bits (memory) assigned to recording color or tonal information.
Blend mode: The formula used for defining the mixing of a layer with those beneath it.
Brightness: The value assigned to a pixel in ...