jetsung 一些开源的 OCR 信息提取工具与项目 https://github.com/chatdoc-com/OCRFlux https://github.com/golangboy/wxocr https://github.com/WeChatCV/opencv_3rdparty https://github.com/ZGGSONG/WeChatOcr https://github.com/WonderLand33/ocr-nextjs