ComputerVision101_Week1_ImageArithmetic

university computervision week1 theory

Image Arithmetic

Source:

• CV101_LectureNotes1b

Idea

Image arithmetic applies standard arithmetic pointwise to images sampled on the same grid.

For two images:

$$H(k)=F(k)+G(k)$$

Examples

• simple addition:

$$h=f+g$$

• weighted combination:

$$h=\frac{f+2g}{3}$$

In NumPy, these operations are often lifted directly to arrays.