local feature and global feature

在这里插入图片描述

Local features and Global features in Image
Local feature also known as local descriptors, are distinct, informative characteristics of an image or video frame that are used in computer vision and image processing. They can be used to represent an image’s content and perform tasks such as object recognition, image retrieval, and tracking.
Global features, also known as global descriptors, are high-level, holistic characteristics of an image or video frame that are used in computer vision and image processing. Unlike local features, which describe distinct, informative regions of an image, global features provide a summary of the entire image or video.

Bilateral Grid

Real-time Edge-aware Image Processing with the Bilateral Grid, PPT

2维 -> 3维，多出来的那一维是pixel density；

Real-time Edge-Aware Image Processing with the Bilateral Grid, paper

参考

Understand Google’s cutting-edge HDRnet in 10 minutes
Deep Bilateral Learning for Real-Time Image Enhancement