~/talk

Tutorial on Image Classification using Scikit-Image, Scikit-learn, and PyTorch

Talkat PyData Virginia 2025 · 2025-04-18..04-19· [machine-learning, python]
name:Matt Litz
links:none on file
slides:none on file

Pipeline that actually runs: scikit-image for segmentation (adaptive histogram, multi-Otsu, remove_small_objects, morphological ops and a WA segmentation workflow), feature extraction with GLCM and LBP into ~16 features, and a Gaussian process classifier trained on ~200 images per class that reports strong precision/recall; PyTorch CNNs (simple CNN and ResNet-50 transfer learning) with augmentation, TensorBoard logging, saliency maps, and notes about needing a GPU for ResNet training. Code and dataset links live in the GitHub repo.

AI-written summary · about

  1. 0:00Introduction and speaker overview
  2. 1:05Agenda and image classification pipeline
  3. 3:15Overview of image processing tools
  4. 4:40Image segmentation fundamentals
  5. 8:53Thresholding and morphological operations
  6. 11:03Live demo of image segmentation
  7. 19:13Advanced segmentation with Gaussian mixture models
  8. 21:25WA segmentation with random forest classifier
  9. 24:14Feature extraction for virus classification
  10. 27:26Gaussian process classification explained
  11. 29:17Demo of Gaussian process classification
  12. 38:31Key performance metrics for classification
  13. 38:51Introduction to PyTorch and CNNs
  14. 40:37Building a simple CNN architecture
  15. 43:27Training loop and TensorBoard setup
  16. 46:25Data augmentation techniques
  17. 51:20Model initialization and training process
  18. 53:35Monitoring metrics with TensorBoard
  19. 55:50Salency maps for CNN interpretation
  20. 59:38Transfer learning with ResNet
  21. 1:03:36Summary and Q&A session
~/search
type to search 6,249 conferences, 138,987 speakers and 185,172 talks
~/help
cmdctrl k
search every conference, speaker and series
/
focus the filter search
h
home
c
conferences
s
speakers
e
series
t
light / dark — the status bar button does the same
?
this help
esc
close this, then clear every filter — or just the search, while you are typing in it

Ignored while you are typing. Pages without a filter rail have no search to focus.