Dual-transform color image holographic watermarking method
A color image and double-transform technology, applied in image data processing, image data processing, instruments, etc., can solve problems such as quaternion Fourier transform and wavelet domain holographic watermarking algorithm, etc., to achieve good invisibility, The effect of reducing the amount of embedding and increasing the capacity
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0038] Example one
[0039] As shown in the figure, a double-transformed color image holographic watermarking method is a color image holographic watermarking algorithm based on quaternion Fourier transform and discrete wavelet transform. It uses Fourier holographic technology and discrete wavelet transform to make a hologram. Obtain the diagonal high-frequency sub-image of the holographic watermark, and embed the diagonal high-frequency sub-image of the holographic watermark into the real coefficients of the quaternion matrix, and perform the inverse quaternion Fourier transform to obtain the final watermarked color image.
[0040] Further, the use of Fourier holography technology and discrete wavelet transform to make a hologram includes making watermark information into a hologram using Fourier holography technology, performing a wavelet decomposition on the hologram, and taking diagonal high-frequency sub-images as the to-be-embedded Anti-counterfeiting information.
[0041] Fur...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap