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.
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