Transcript New Image Encryption and Compression Method Based on Independent Component Analysis

New Image Encryption and
Compression Method Based on
Independent Component Analysis
INTRODUCTION

propose a method combining encryption
and compression based on Independent
Component Analysis (ICA) and Discrete
Cosine Transform (DCT)
APPROACH
APPROACH
APPROACH
With the property of the DCT transform
which regroup the important information in
the upper-left corner
APPROACH
APPROACH
APPROACH
Demixing:
FastICA is used
 Inverse rotation and inverse discrete
cosine transform:
use the rotation “key” to reconstruct
the original DCT components
IDCT

RESULT