Simple Image Model

 Simple Image model 

I(x, y, l) = σ(x, y, l) × L(l)

Mach Bands

Mach band effect is a phenomenon of lateral inhibition of rods and cones, where the sharp intensity changes are attenuated by the visual system.

Components of Digital Camera

The essential components of a digital camera are as follows

A subsystem of sensors to capture the image. The subsystem uses photodiodes to convert light energy into electrical signals.

A subsystem that converts analog signals to digital data.

A storage subsystem for storing the captured images. A digital camera also has an immediate feedback system to see the captured image. Digital cameras can be connected to computers through a cable, to transfer images to the computer system.