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dandelany
animate-earth
JavaScript2016–2019
dandelany / animate-earth

animate-earth

:earth_asia: Himawari satellite imagery motion interpolation

3Distinct people
3Mentions
0Explicit recommenders
35GitHub stars
REPOSITORY AT A GLANCE

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What it is

:earth_asia: Himawari satellite imagery motion interpolation

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Where it is used

No documented product use has been verified yet.

What people are saying

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This week on Hacker News

Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 3:56:07 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by year3 dated mentions

Observed mentions: 2016-01-27 04:40:21 UTC to 2019-02-17 08:07:37 UTC.

012016-01-01 00:00:00 UTC to 2017-01-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments20162017-01-01 00:00:00 UTC to 2018-01-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments20172018-01-01 00:00:00 UTC to 2019-01-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments2019-01-01 00:00:00 UTC to 2020-01-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments2019

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges
UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
PeriodStart (UTC)End (exclusive, UTC)MentionsSubmissionsComments
20162016-01-01 00:00:00 UTC2017-01-01 00:00:00 UTC101
20172017-01-01 00:00:00 UTC2018-01-01 00:00:00 UTC000
20182018-01-01 00:00:00 UTC2019-01-01 00:00:00 UTC101
20192019-01-01 00:00:00 UTC2020-01-01 00:00:00 UTC101

What Hacker News says

3 sources
Related project: animate-earth https://github.com/dandelany/animate-earth This repository is an experiment in applying optical-flow-based motion interpolation to processed RGB satellite imagery from Himawari-8’s AHI imager, with the aim of regularly producing high-quality smoothed videos from these images, and sharing them with the world. The final products can be found on this Youtube channel[https://www.youtube.com/channel/UC6Mlo4zfmEITcNoCpBKfEfg/pla...], updated nearly daily.
In Ask HN: Where to find hi-res images of earth?
In addition to the link posted by celoyd, you can get access to the full data stream you mentioned by filling out this application form[0]. There are also some heavily processed images from that data available from NOAA[1] - the "Geocolor Full Disk" is the best, it's half-resolution (5500x5500). The green filter on Himawari's camera doesn't correctly capture the green color of vegetation, which is why OP's video looks browner than you might expect. So this product attempts to correct for that by creating an artificial green channel made of a combination of other channels[2]. It also attempts to correct for Rayleigh scattering[3], so this is basically what the Earth would look like if the atmosphere suddenly disappeared (except for the clouds :P). The night portions of these images are a different kind of false color composite: the clouds
Read the rest
come from two infrared channels, white are high ice clouds and red are low wet clouds; the city lights are (sadly) just a static overlay from existing data. And (shameless plug) I've been playing with applying motion interpolation algorithms to these NOAA images to create smooth, high resolution video that can be played much slower. The Farneback optical flow algorithm[4][5] seems to work very well. (Lots of) videos available on my Youtube channel[6], code/details available here[7][8], blog post coming soon :) [0] http://www.eorc.jaxa.jp/ptree/registration_top.html [1] http://rammb.cira.colostate.edu/ramsdis/online/himawari-8.as... [2] http://www.goes-r.gov/downloads/ScienceWeek/2015/Presentatio... [3] http://rammb.cira.colostate.edu/research/goes-r/proving_grou... [4] http://www.diva-portal.org/smash/get/diva2:273847/FULLTEXT01... [5] https://github.com/dthpham/butterflow [6] https://www.youtube.com/watch?v=6rOwjn87edI&list=PLrmCQL5hEL... [7] https://github.com/dandelany/animate-earth [8] http://www.unmannedspaceflight.com/index.php?showtopic=8063&...
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