1. MULTIMEDIA INPUT / OUTPUT TECHNOLOGIES
A.Aruna, Assistant Professor, Faculty of Information Technology
4/24/2017
VIDEO IMAGE AND ANIMATION

2. VIDEO FRAME GRABBER ARCHITECTURE
A.Aruna, Assistant Professor, Faculty of Information Technology
4/24/2017
VIDEO FRAME GRABBER ARCHITECTURE
To Capture, Manipulate and enhance the video
Input video image from
Video network
VCR Control
Video Camera

3. VIDEO FRAME GRABBER ARCHITECTURE
A.Aruna, Assistant Professor, Faculty of Information Technology
4/24/2017
VIDEO FRAME GRABBER ARCHITECTURE
Video Channel Multiplexer
A /D Converter
Input lookup table
Image Frame Buffer Memory
Video Compression and Decompression
Frame Buffer Output lookup table
SVGA Interfaces
Analog output Mixer

4. Video Compression and Decompression
A.Aruna, Assistant Professor, Faculty of Information Technology
4/24/2017
Video Compression and Decompression
D/A Converter
RS 422 FOR VCR CAMERA
ISA Bus for PC
Multi Channel Video switch and A/D Converter
Input Lookup table
Video Frame Memory

5. VIDEO AND STILL IMAGE PROCESSIONG
A.Aruna, Assistant Professor, Faculty of Information Technology
4/24/2017
VIDEO AND STILL IMAGE PROCESSIONG
Video Image processing?
Process of manipulating a bitmap Images
Enhanced
Restored
Distorted
Analyzed
Pixel point to point Processing
Histogram Sliding – Change the overall visible effects – Brightness and Darkening of the image

6. VIDEO AND STILL IMAGE PROCESSIONG
A.Aruna, Assistant Professor, Faculty of Information Technology
4/24/2017
VIDEO AND STILL IMAGE PROCESSIONG
Pixel point to point processing
Individual pixel at time
Histogram Sliding
Change the overall Effect of brightness and Darkness
Histogram Stretching and Shrinking
Increase or decrease the contrast
Pixel Threshold
Set the Limits

7. VIDEO AND STILL IMAGE PROCESSIONG
A.Aruna, Assistant Professor, Faculty of Information Technology
4/24/2017
VIDEO AND STILL IMAGE PROCESSIONG
Interface Image Processing – operate on two Images at Same time
Image Averaging – Minimize or cancel the noise – based on frames
Image Subtraction – changes from one frame to another – Motion Detection or Key Frame Detection – Image Frame
Logical Image Operation – making a block in a image frame (AND,OR,XOR)

8. VIDEO AND STILL IMAGE PROCESSIONG
A.Aruna, Assistant Professor, Faculty of Information Technology
4/24/2017
VIDEO AND STILL IMAGE PROCESSIONG
Spatial Filtering Processing – Statistical Analysis
Low Pass Filter – Blurring of Image and Appear to cause reduction of Noise
High Pass Filter – Edges to be Emphasized
Laplacian Filter – Extract object From Images. Convolution to be used

9. VIDEO AND STILL IMAGE PROCESSIONG
A.Aruna, Assistant Professor, Faculty of Information Technology
4/24/2017
VIDEO AND STILL IMAGE PROCESSIONG
Frame Processing – Geometrical Operation, Image Transformation, Image Data Compression and Decompression
Image Scaling
Image Rotation’
Image Translation
Scale to Gray
Image Transformation
Image Compression and Decompression

10. IMAGE ANIMATION TECHNIQUE
A.Aruna, Assistant Professor, Faculty of Information Technology
4/24/2017
IMAGE ANIMATION TECHNIQUE
What is Animation
Movement of Images
Toggling Between Image Frames
Changing images at display Time
Rotating Through Several Images Frame
Loop to create a rotation
Delta Frame Animation
Successive frame of image – demands on memory and disk Frame
Palette Animation – Drawing of objects