Principles and Methods of Color Layering in Color Images

1. Understand the fundamental principles and techniques of color layering in color images - including algorithm design and color space selection 2. Process color images using color layering methods through practical code implementation and threshold-based segmentation 3. Achieve background separation and skin region extraction for ID card standard images using clustering algorithms and region detection techniques

Signal Extraction Using Wavelets

Signal extraction using wavelets involves hierarchical decomposition of signals followed by spectral analysis at each decomposition level, with implementation typically utilizing wavelet transform functions and frequency spectrum plotting methods.