DCT Transformation and Run-Length Encoding/Decoding Program
MATLAB-coded program implementing Discrete Cosine Transform (DCT) and Run-Length Encoding/Decoding algorithms for signal processing applications
Block-Based Compressive Sensing Reconstruction for Images
Implementation of block-based compressive sensing image reconstruction using DCT transformation and OMP reconstruction algorithm
Performing DCT Transformation with Zigzag-Order Coefficient Retention
Read a 256*256 image, divide it into 8*8 pixel blocks, apply DCT transformation to each block, retain specified coefficients in zigzag order, reconstruct the image using IDCT, and calculate the signal-to-noise ratio of the reconstructed output
MATLAB Implementation of Digital Watermarking Algorithm Using DCT Transformation
MATLAB code implementation of a digital watermarking algorithm, fully tested and debugged, utilizing DCT (Discrete Cosine Transform) for enhanced robustness and performance
MATLAB Implementation of DCT Transform for Digital Watermarking
Digital Watermark Embedding and Extraction Using Discrete Cosine Transform (DCT) with MATLAB Code Implementation
DCT Coefficient-Based Video Watermark Embedding Algorithm
A video watermark embedding program based on DCT coefficients that reads YUV files, extracts multiple frames, performs DCT transformation on each frame, modifies mid-low frequency coefficient values, applies inverse DCT, and reconstructs frames into YUV format for playback.
MATLAB-Based Digital Watermark Embedding Using DCT Algorithm
This MATLAB program implements digital watermark embedding for images using Discrete Cosine Transform (DCT), featuring DCT/IDCT operations and frequency-domain processing for copyright protection and integrity verification.
Grayscale Image Compression Using DCT Transformation
Implementing grayscale image compression through DCT transformation, calculating compression ratios, and comparing images with different compression levels using MATLAB-based algorithms.
Performing DFT and DCT Transformations on an Image with MATLAB
Implementation of Discrete Fourier Transform (DFT) and Discrete Cosine Transform (DCT) on images using MATLAB, with comparative analysis of image reconstruction using only 20 DCT coefficients versus the original image.
Image Compression Using DCT Transform
A small MATLAB program for image compression using Discrete Cosine Transform (DCT), marking my first MATLAB programming project