File:Savitzky Golay Animation Wl 65 Po 9 w Poly Boundary Fit.gif

Savitzky_Golay_Animation_Wl_65_Po_9_w_Poly_Boundary_Fit.gif (750 × 400 pixels, file size: 1.25 MB, MIME type: image/gif, looped, 232 frames, 17 s)

Summary

Description
English: The Savitzky-Golay filter as a discrete convolution with a polynomial fit at the boundaries (created with Python SciPy and Matplotlib)
Date
Source Own work
Author MothNik

Licensing

I, the copyright holder of this work, hereby publish it under the following license:
Creative Commons CC-Zero This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication.
The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.

Captions

The animation shows the application of a Savitzky Golay filter (45 points, 4th order polynomial) to a noisy series of Gaussian peaks with ever decreasing peak width via a step-wise discrete convolution.

Items portrayed in this file

depicts

inception

28 May 2024

data size

1,423,360 byte

duration

15.6 second

height

400 pixel

width

750 pixel

media type

image/gif

checksum

a6ed6fe1312cafee3a1635abe360c9cd3b19c66f

determination method or standard: SHA-1

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current20:42, 28 April 2025Thumbnail for version as of 20:42, 28 April 2025750 × 400 (1.25 MB)MothNikAdapted window size and polynomial degree
19:39, 28 April 2025Thumbnail for version as of 19:39, 28 April 2025750 × 400 (1.26 MB)MothNikreduced resolution again because it didn't work on mobile applications
19:35, 28 April 2025Thumbnail for version as of 19:35, 28 April 20251,500 × 800 (3.29 MB)MothNikAdded a tracking line to make the smoothed point easier to follow; tested improved image resolution; made headlines bold
19:45, 28 May 2024Thumbnail for version as of 19:45, 28 May 2024750 × 400 (1.36 MB)MothNikReduced file size by reducing number of data points and thus frames and filesize
18:58, 28 May 2024Thumbnail for version as of 18:58, 28 May 20241,500 × 800 (6.35 MB)MothNikUploaded while editing "Savitzky–Golay filter" on en.wikipedia.org

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