3. Introduction
Digital image processing is the image
processing is the use of computer
algorithms to perform image
processing on digital images.
As a subcategory or field of digital
signal processing, processing digital
image processing has many advantages
over analog image processing.
DIGITAL IMAGE PROCESSING 3
4. A digital image is a
representation of a two
dimensional image as a finite set of
digital values, called picture
element or pixels
digitization implies that a
digital image is an approximation
of a real scene
WHAT IS
DIGITAL IMAGE
5. WHAT IS DIGITAL IMAGE(CONT)
Common image formats include:
1 sample per point (B&W or grayscale)
3 sample per point (RED,GREEN, and BLUE)
4 sample per point (RED,GREEN,BLUE and “Alpha”, a.k.a.
Opacity)
Presentation Title 5
6. WHY IMAGE PROCESSING
Presentation Title 6
Since the digital image “invisible” it
must be prepared for viewing on one
or more output device (laser printer,
monitor etc).
The digital image can be optimized for
the application by enhancing or
altering the appearance of structure
within it (based on: body part,
diagnostic task, viewing preferences
etc.)
7. TYPES OF DIP
Presentation Title 7
1.Image-to-image transformations
2.Image-to-information transformations
3.Information-to-image transformations
11. MEDICINE
Presentation Title 11
Take slice from MRI scan of
canine heart, and find
boundaries between types of
tissue
image with Gray levels
representing tissue density
13. LAW
ENFORCEMENT
13
Image processing techniques are used
extensively by law enforcers
# number plate recognition
for speed
# cameras/automated toll
systems
# fingerprint recognition
enhancement of CCTV
images
14. SECURITY SYSTEMS
It is used identifying or
verifying a person in mobile
and Laptop to unlock them
It is used security systems
fingerprint, eye detection
Presentation Title 14
