In this paper, we introduce a robust and secure digital signature scheme for image content authentication, by integrating content feature extraction, watermarking, cryptographic hashing, and digital ...

Learn how quantization affects the stability of digital control systems, and how to design and analyze them using appropriate methods and tools. Sign in to view more content ...

Image Processing: The project performs image processing tasks, including color quantization and histogram generation, to facilitate image search and analysis. User Interface: The project may include a ...

Colour quantization, the process of reducing the number of distinct colours in an image while maintaining visual fidelity, is a cornerstone of digital image processing and computer graphics.

The human visual system focuses on active areas in images, such as people or vehicles. This project introduces a lossy encoder using image segmentation to guide quantization, improving compression ...

This is understandable since a too small quantization interval ℓ leads to too small quantization errors to stir the evolution of optimization variables, which makes it hard to evade saddle points; ...

The digital data acquisition system operates at a sampling rate of 250 MHz with a 14-bit resolution by Pixie-16 digitizer. Using waveform digitization technology, it converts analog signals into ...

Quantization is applied to both robust feature extraction and watermarking. Simulation results further demonstrate the practicability of our method in terms of system robustness and system security.