עיבוד תמונות

עיבוד תמונותעיבוד תמונות

Image ProcessingImage Processing

Images and DataImages and Data

Image Image Processing ImageImage Image Processing Image

Image Computer Vision DataImage Computer Vision Data

Data Computer Graphics ImageData Computer Graphics Image

(1) Quality Criterion(1) Quality Criterion

Original 1bpp 0.25 bppOriginal 1bpp 0.25 bpp

Spatial FrequencySpatial Frequency

Spatial SensitivitySpatial Sensitivity

Vision Research - PsychophysicsVision Research - Psychophysics

Original Image

R G B

+ +

(2) Color Image Processing(2) Color Image Processing

ColorimetryColorimetry

Luminance In-phase Quadrature

Y I Q

YIQ

NTSC broadcast color system

YIQ RepresentationYIQ Representation

DFT

Magnitude

PhaseID

FT

IDFT

Original(3) Spectral Image Processing(3) Spectral Image Processing

Reconstruction AlgorithmReconstruction Algorithm

U p da teS pa tia ld om a in

In fo rm ation

F ou rie rT ran sfo rm

In verseF ou rie r

T ran sfo rm

U p da tefre qu en cy

d om a inin fo rm ation

(4) Pyramidal Representation(4) Pyramidal Representation

Pyramidal RepresentationPyramidal Representation

(5) Wavelets & Gabor Functions(5) Wavelets & Gabor Functions

Wavelets & Gabor FunctionsWavelets & Gabor Functions

WaveletsWavelets

Gabor FunctionsGabor Functions

(6) Image Compression Techniques(6) Image Compression Techniques

(7) Edge Detection(7) Edge Detection

(8) Second Generation Coding(8) Second Generation Coding

Original JPEG 2nd Generation

Progressive TransmissionProgressive Transmission

Regions Transmitted Image

(9) Restoration(9) Restoration

(10) Video Coding(10) Video Coding

Original 1:63Original 1:63

1:164 1:821:164 1:82

MPEG CodingMPEG Coding