On the selection of image compression algorithms

Image compression: Lossy vs Lossless

Wavelet compression

Wavelet compression

JPEG Compression (DCT)

JPEG Compression (DCT)

VQ Compression

Codebook -> codevectors -> 4x4 discribed by codevecors

Fractal Compression

Fractal Compression

+ -

Wavelet transform, JPEG (DCT):

  • + Compresie buna
  • + Calitate buna
  • + Durata mica

 

VQ Compression:

  • - Durata mare de timp
  • + Compresie foarte buna
  • + Calitate buna

Fractal compression:

  • + Compresie foarte buna
  • + Calitate buna
  • - Durata foarte mare de timp

DCT for image similarity

Multumesc!

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