New Image Encryption and Compression Method Based on Independent Component Analysis.
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New Image Encryption and New Image Encryption and Compression Method Based Compression Method Based on Independent Component on Independent Component Analysis Analysis
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19-Dec-2015 -
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Transcript of New Image Encryption and Compression Method Based on Independent Component Analysis.
![Page 1: New Image Encryption and Compression Method Based on Independent Component Analysis.](https://reader035.fdocuments.us/reader035/viewer/2022062216/56649d3a5503460f94a14ec0/html5/thumbnails/1.jpg)
New Image Encryption and New Image Encryption and Compression Method Based on Compression Method Based on
Independent Component AnalysisIndependent Component Analysis
![Page 2: New Image Encryption and Compression Method Based on Independent Component Analysis.](https://reader035.fdocuments.us/reader035/viewer/2022062216/56649d3a5503460f94a14ec0/html5/thumbnails/2.jpg)
INTRODUCTIONINTRODUCTION
propose a method combining encryption and compression based on Independent Component Analysis (ICA) and Discrete Cosine Transform (DCT)
![Page 3: New Image Encryption and Compression Method Based on Independent Component Analysis.](https://reader035.fdocuments.us/reader035/viewer/2022062216/56649d3a5503460f94a14ec0/html5/thumbnails/3.jpg)
APPROACHAPPROACH
![Page 4: New Image Encryption and Compression Method Based on Independent Component Analysis.](https://reader035.fdocuments.us/reader035/viewer/2022062216/56649d3a5503460f94a14ec0/html5/thumbnails/4.jpg)
APPROACHAPPROACH
![Page 5: New Image Encryption and Compression Method Based on Independent Component Analysis.](https://reader035.fdocuments.us/reader035/viewer/2022062216/56649d3a5503460f94a14ec0/html5/thumbnails/5.jpg)
APPROACHAPPROACH
With the property of the DCT transform which regroup the important information in the upper-left corner
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APPROACHAPPROACH
![Page 7: New Image Encryption and Compression Method Based on Independent Component Analysis.](https://reader035.fdocuments.us/reader035/viewer/2022062216/56649d3a5503460f94a14ec0/html5/thumbnails/7.jpg)
APPROACHAPPROACH
![Page 8: New Image Encryption and Compression Method Based on Independent Component Analysis.](https://reader035.fdocuments.us/reader035/viewer/2022062216/56649d3a5503460f94a14ec0/html5/thumbnails/8.jpg)
APPROACHAPPROACH
Demixing: FastICA is used Inverse rotation and inverse discrete cosin
e transform: use the rotation “key” to reconstruct
the original DCT components IDCT
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RESULTRESULT