Judge the enhancement results according to human
subjective preferences

Color is a powerful descriptor that often
simplifies object identification and extraction
from a scene

Morphological Image Processing:
Mathematical morphological operations
Tools for extracting image components that are useful in the representation and description of shapes

Partition an image into its constituent parts of objects

Reduce the storage required to save an image
Reduce the bandwidth required to transmit it

Image Sensors contain Physical Device & Digitizer

convert the output of physical device
into digital form

digitizer convert the input of physical device
into digital form

sense the energy radiated by the
object we wish to image

Specialized Image Processing Hardware:
Perform some advanced operations
Perform functions that require slow data throughout

for relatively fast recall

for infrequent access

for use during processing

Most of the images in which we are interested
are generated by the combination of an
“illumination” source and the reflection or absorption of energy from that source by the elements of the “scene” being imaged