Similarity Measurement

OpenCV

Open Source Computer Vision.

• feature-matching
  It takes the descriptor of one feature in first set and is matched with all other features in second set using some distance calculation. And the closest one is returned.

• template-matching
  Template Matching is a method for searching and finding the location of a template image in a larger image.

• comparing-histograms
  Use different metrics to compare histograms.

scikit-image

image processing in python.

• docs.opencv.org/3.4/d8/dc8/tutorial_histogram_comparison.html

• scikit-image.org/docs/dev/auto_examples/transform/plot_ssim.html

scikit-video

video processing in python.

• scikit-video.org/stable/modules/generated/skvideo.measure.ssim.html
  Computes Structural Similarity (SSIM) Index.

• scikit-video.org/stable/modules/generated/skvideo.measure.msssim.html
  Computes Multiscale Structural Similarity (MS-SSIM) Index.