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

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Presentation transcript:

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