Vision原文档
https://developer.apple.com/documentation/vision
译文：
Apply computer vision algorithms to perform a variety of tasks on input images and video.
应用计算机视觉算法对输入图像和视频执行各种任务。
Overview
The Vision framework performs face and face landmark detection, text detection, barcode recognition, image registration, and general feature tracking. Vision also allows the use of custom Core ML models for tasks like classification or object detection.
概览
视觉框架执行人脸和人脸特征标志检测、文本检测、条形码识别、图像配准和一般特征跟踪。Vision还允许为任务使用定制的CoreML模型，如分类或对象检测。