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Computer vision and face recognition using python
- 1. Computer Vision and Face Recognition Using Python A Prelude Webinar on www.techgig.com to RACE360 by Ratnakar Pandey 26 Aug 2019 LinkedIn Profile- https://www.linkedin.com/in/ratnakarpandey/ Quora Q&A - https://www.quora.com/profile/Ratnakar-Pandey-RP Data Science Blog – www.datafai.com SlideShare- https://www.slideshare.net/RatnakarPandey6 Email ID- rpdatascience@gmail.com
- 2. What is Computer Vision? Computer vision is an interdisciplinary scientific field that deals with how computers can be made to gain high- level understanding from digital images or videos. From the perspective of engineering, it seeks to automate tasks that the human visual system can do. - Wikipedia
- 3. Where is CV Used- Example Application Areas
- 4. Factors Driving CV and Business Impact Source:https://www.sas.com/content/dam/SAS/documents/infographics/2019/e n-computer-vision-110208.pdf
- 5. Computer Vision is NOT EASY
- 6. So, How does Computer Vision Work? Source : https://www.youtube.com/watch?v=OcycT1Jwsns
- 7. Some Popular CV Tools Coding Packages • OpenCV- Originally developed by Intel in 1999, open source and free to use. Supports multiple platforms- C++, Python, Java etc. https://opencv.org/ • Dlib- C++ library http://dlib.net/ • Face_recognition- Python based very simple library for face recognition https://pypi.org/project/face_recognition/ (Today’s demo) • TensorFlow- Free and open source developed by Google https://www.tensorflow.org/ CV as a service or API • Google Cloud Vision AI- https://cloud.google.com/vision/ (Today’s demo) • Amazon Rekognition- https://aws.amazon.com/rekognition/ • Microsoft Azure- https://azure.microsoft.com/en-in/services/cognitive-services/computer- vision/
- 8. Demo - Google Cloud Vision AI
- 9. Demo- Google Cloud Vision AI ▪ Go to https://cloud.go ogle.com/vision/ ▪ Upload any image of your choice for deriving analytics on your images, including OCR.
- 10. Demo- Google Cloud Vision AI- RP’s Picture Sentiment Analysis Object Recognition Uploaded Pic
- 11. Demo- Google Cloud Vision AI- RP’s Picture Image Labels Web-pages associated with this image
- 12. Demo- Google Cloud Vision AI- RP’s Picture Key words associated with this image
- 13. Demo- Google Cloud Vision AI- Another Picture Sentiment Analysis Object Recognition Uploaded Pic
- 14. Demo- Google Cloud Vision AI- Another Picture Image Labels Web-pages associated with this image
- 15. Demo- Google Cloud Vision AI- Another Picture Optical Character Recognition (OCR)
- 16. Demo- Google Cloud Vision AI- Another Picture Safe Search
- 17. Demo – Python based Face Detection using OpenCV and face_recognition
- 18. Tools and Packages Required https://colab.research.google.com/ https://opencv.org/ https://pypi.org/project/face_recognition/ GPU * GPU and Python are both available in Google Colab
- 19. Lets’ get started- Open a new Python 3 Notebook in Google Colab
- 20. Save the file and connect to the hosted environment
- 21. Change runtime type to GPU and save.
- 22. Upload Images to the Google Colab Environment. You are all set to code. We are uploading two images- 1. obama1.jpg 2. many_faces.jpg
- 27. That was simple as we only had one face in the picture. How about this?
- 30. All 4 faces in the image have been correctly identified by the algorithm!!
- 31. What’s Next? ▪ Meet me and other speakers in Race 360 Emerging Technology conference in Bangalore on Aug 28th 2019. Watch more demo on Computer Vision and be part of CV workshops https://race360.in/ ▪ Learn more on Data Science and other topics free of cost on my blog. www.datafai.com ▪ Learn other functionality of OpenCV and face_recoginition packages such as changing facial features, identify people, match faces, video analysis etc. https://pypi.org/project/face_recognition/ ▪ Participate in Kaggle and other competitions in this area- https://www.kaggle.com/c/the-nature-conservancy-fisheries-monitoring
- 32. Thank You!! LinkedIn Profile- https://www.linkedin.com/in/ratnakarpandey/ Quora Q&A - https://www.quora.com/profile/Ratnakar-Pandey-RP Data Science Blog – www.datafai.com SlideShare- https://www.slideshare.net/RatnakarPandey6 Email ID- rpdatascience@gmail.com