Fundamental

perspective projection

Affine projection

Distortion

Colour Space

RGB

HSV

• Value

• Saturation

• Hue

YCbCr

fast to compute, good for compression, used by TV

L * a * b

Digital Image Formation

Digitisation

Digitisation: convert analog image to digital image by sampling the image space (spatial sample);

spatial resolution

number of pixels per unit of length (more pixels, more clear, but waste memory);

Quantisation

level per pixel;

such as: 8 bits = 256 selections in each pixel;