CLAHE是一种图像处理技术,通过增强图像的对比度来改善视觉效果,尤其擅长在不引入噪声的情况下提升局部对比度。
Clahe, or contrast-limited adaptive histogram equalization, is a technique designed to improve the local contrast of images. The method works by dividing an image into small regions and applying histogram equalization separately in each region while clipping the histogram at a specified threshold value to prevent amplification of noise. This approach enhances details within areas of high gradients without over-amplifying texture or noise, thereby providing better visual quality than traditional global histogram equalization methods.
The original paper on Clahe provides a detailed explanation and analysis of this technique, including its algorithmic implementation and applications in various fields such as medical imaging and computer vision.