Iteration self-adapting quantizing index modulation watermark method based on vision model
A self-adaptive quantization and visual model technology, applied in multimedia signal processing and video fields, can solve problems such as watermark cannot be extracted completely and reliably, inconsistent quantization step size, etc., to achieve the effect of enhanced strength, correct detection and good robustness
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment Construction
[0021] The sensitivity table in the Watson visual model is t(i,j), where i,j=0,1,...,7. The 8×8 block discrete cosine transform (DCT) transformation of the watermark image to be embedded, the obtained DCT coefficient of the position of the kth block (i, j) is C0(i, j, k), then the brightness masking threshold tL(i, j, k) can be obtained by the following formula:
[0022] t L ( i , j , k ) = t ( i , j ) ( C 0 ( 0,0 , k ) / C 0,0 ) α T
[0023] where α T is a constant, usually 0.649, C...
PUM

Abstract
Description
Claims
Application Information

- Generate Ideas
- Intellectual Property
- Life Sciences
- Materials
- Tech Scout
- Unparalleled Data Quality
- Higher Quality Content
- 60% Fewer Hallucinations
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com