Frequency-domain filtering operates by transforming spatial image data into its spectral representation, modifying amplitude components according to a defined transfer function, and reconstructing the spatial image via inverse transformation. This approach enables precise control over noise suppress...
Image encryption is critical for securing visual data during transmission and storage. Traditional methods often rely on spatial or frequency domain operations, which can be vulnerable to attacks. To enhance security, phase encoding techniques have gained attention in recent research. Dual random ph...
Template matching is a computer vision technique used to locate predefined patterns with in images. In invoice recognition, this method identifies key fields such as invoice numbers, dates, and amounts by comparing them with stored templates. The process involves preprocessing, sliding window compar...