New Image Encryption and Compression Method Based on Independent Component Analysis

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

• propose a method combining encryption and
  compression based on Independent Component
  Analysis (ICA) and Discrete Cosine Transform (DCT)

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APPROACH
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APPROACH
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APPROACH
With the property of the DCT transform which
regroup the important information in the
upper-left corner
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APPROACH
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APPROACH
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APPROACH

• Demixing
• FastICA is used
• Inverse rotation and inverse discrete cosine
  transform
• use the rotation key to
  reconstruct
• the original DCT components
• IDCT

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RESULT