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feat: can compress image data before sending it to over the websocket #109

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This is useful when the widget is being used over a non-local network. This can reduce the network traffic by a factor of 80 (for smooth, easy to compress images). Pure noise image (random pixels) will not compress well but will still see a factor of 7 reduction in size, due to using uint8 instead of float64.

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codecov bot commented Oct 11, 2024

Codecov Report

Attention: Patch coverage is 28.57143% with 35 lines in your changes missing coverage. Please review.

Project coverage is 44.44%. Comparing base (7b90b9d) to head (fa48411).
Report is 5 commits behind head on main.

Files with missing lines Patch % Lines
bqplot_image_gl/serialize.py 22.22% 35 Missing ⚠️
Additional details and impacted files
@@            Coverage Diff             @@
##             main     #109      +/-   ##
==========================================
- Coverage   50.00%   44.44%   -5.56%     
==========================================
  Files           7        8       +1     
  Lines         140      189      +49     
==========================================
+ Hits           70       84      +14     
- Misses         70      105      +35     

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@maartenbreddels maartenbreddels force-pushed the feat_compress_image_data branch 6 times, most recently from d5b2eeb to 148de2c Compare October 11, 2024 10:44
This is useful when the widget is being used over a non-local network.
This can reduce the network traffic by a factor of 80 (for smooth, easy
to compress images). Pure noise image (random pixels) will not compress
well but will still see a factor of 7 reduction in size,
due to using uint8 instead of float64.
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