Image-Based Information Concealment Using Encryption and Decryption Algorithms
Steganography involves embedding information within images while utilizing encryption and decryption algorithms to ensure data security during the concealment process.
Obtaining Chain Codes in Image Edge Detection
This code implements chain code extraction for image edge detection, where 'img' represents the input image, 'Array' stores the resulting chain codes, 'x0y0' contains initial point coordinates, 'xy' records the final point coordinates, and 'Ratio' calculates chain code curvature. The implementation uses boundary tracing algorithms to follow edge contours and generates directional codes (typically using 4 or 8-connectivity) representing edge segment orientations. Comment annotations explain the logic for international developers. Currently developing phase coding implementations - collaboration welcome for researchers interested in this domain.
An Article on Local Image Contrast Enhancement
This article explores local image contrast enhancement techniques, accompanied by the original research paper, MATLAB simulation code, and sample images. The results demonstrate impressive performance, making this resource highly valuable for implementation.
Image Compression and Reconstruction Using PCA Method in MATLAB
Image Compression and Reconstruction via Principal Component Analysis (PCA) in MATLAB with Code Implementation Details
Full Search Algorithm and Three-Step Search Method Implementation
Implementation of full search algorithm and three-step search method for simulating transmission of 256×256 images, including code structure and algorithmic approaches for motion estimation and pattern matching.
An Algorithm for Nighttime Image Enhancement
"An Algorithm for Nighttime Image Enhancement" includes original documentation, program implementation with accompanying demonstration images, where the 'ye' image processing yields optimal results.
Implementation of Logarithmic Polar Coordinate Transformation for Images
Implementation of image logarithmic polar coordinate transformation with rotation invariance, applicable for geometric attack resistance in digital watermarking systems
Calculating Image Peak Signal-to-Noise Ratio (PSNR)
Implementation code for calculating image PSNR with comprehensive algorithm explanation and practical applications
Enhanced Image Stitching Algorithm Based on SIFT
An improved automatic image stitching algorithm leveraging SIFT feature detection and matching, thoroughly tested and operating flawlessly with optimized implementation details
Light Compensation-Based Face Detection
Face detection with light compensation, combining skin tone and hair color features after illumination enhancement processing.