图像压缩 Resources

Showing items tagged with "图像压缩"

This MATLAB implementation demonstrates image compression via source encoding at the transmitter and image reconstruction through source decoding at the receiver, utilizing JPEG standard based on DCT transform. The project includes noise addition to test images followed by denoising, compression, and reconstruction to analyze compression performance. It explores downsampling and interpolation-based compression algorithms, with potential extensions from 8-bit/pixel grayscale to 24-bit/pixel color images or implementation of lossless compression techniques.

MATLAB 219 views Tagged

Spatial coherence often exists between color values of sampling points across an image surface - for instance, the identical coloration of two mice, the background wall, and gray floor. These uniform color blocks can be effectively compressed through algorithms like run-length encoding or discrete cosine transform.

MATLAB 243 views Tagged

Based on the fundamental principles and characteristics of Singular Value Decomposition (SVD), this article presents a method for image compression using SVD. The method is illustrated through simple examples demonstrating the basic compression process and workflow. Practical image processing implemented through MATLAB programming validates the effectiveness of the approach, with detailed explanations of key functions like svd() for matrix decomposition and imshow() for image visualization.

MATLAB 177 views Tagged