图像增强 Resources

Showing items tagged with "图像增强"

Implementation of image enhancement through diffusion filtering, including Gaussian preprocessing, gradient computation, structural tensor calculation, diffusion tensor derivation, numerical discretization, and enhancement evaluation code with algorithmic explanations

MATLAB 215 views Tagged

This program implements image enhancement through an adaptive genetic algorithm, with core concepts derived from a research paper published in the "Chinese Journal of Computers". The implementation includes population initialization, fitness evaluation based on image quality metrics, and adaptive crossover/mutation operations.

MATLAB 201 views Tagged

The objective of image enhancement is to improve picture quality by increasing contrast, reducing blur and noise, and correcting geometric distortions, while image restoration is a technique that estimates the original image assuming known models of blur or noise. Image enhancement methods are categorized into frequency domain and spatial domain approaches. Frequency domain methods treat images as 2D signals and employ 2D Fourier transform for signal enhancement, with low-pass filtering to remove noise and high-pass filtering to sharpen edges. Spatial domain algorithms include local averaging and median filtering (using the median pixel value in a local neighborhood) for noise reduction.

MATLAB 282 views Tagged