OpenCV - OpenCV is the world's biggest computer vision library
libdwt - A software library for computation of the discrete wavelet transform that is primarily implemented...
Microsoft Computer Vision API - Extract rich information from images and analyze content with Computer Vision, an Azure Cognitive Service.
Amazon Rekognition - Add Amazon's advanced image analysis to your applications.
Computer Vision Annotation Tool (CVAT) - Powerful and efficient Computer Vision Annotation Tool (CVAT) - opencv/cvat
Clarifai - The World's AI