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enhance highgui module with hardware acceleration #63

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7 of 10 tasks
nihui opened this issue Sep 18, 2023 · 1 comment
Open
7 of 10 tasks

enhance highgui module with hardware acceleration #63

nihui opened this issue Sep 18, 2023 · 1 comment
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enhancement New feature or request

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@nihui
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nihui commented Sep 18, 2023 •
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cv::imread / cv::imdecode

  • jpeg on milkv-duo
  • jpeg on yuzuki-lizard
  • jpeg on tinyvision

cv::imwrite / cv::imencode

  • jpeg on milkv-duo
  • jpeg on yuzuki-lizard
  • jpeg on tinyvision
  • jpeg on luckfox-pico

cv::VideoCapture

  • v4l camera on luckfox-pico
  • v4l camera on tinyvision
  • cvi camera on milkv-duo
@nihui nihui added the enhancement New feature or request label Sep 18, 2023
@nihui nihui pinned this issue Sep 18, 2023
@nihui
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nihui commented Feb 14, 2024 •
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1920x1080 jpg encoding on raspberry pi

  • software encoder: opencv + libjpeg-turbo
  • hardware encoder: v4l2-mem
  • write to /dev/null for eliminating i/o time
soc sw(ms) sw-cpu-usage(%) hw(ms) hw-cpu-usage(%)
rpib+ BCM2835 766.26 97.2 41.36 41.8
rpi2 BCM2836 185.87 100 29.92 22.4
rpi3b+ BCM2837B0 65.02 100 22.69 23.8
rpi4b BCM2711 31.81 100 14.91 16.9
rpi5b BCM2712 15.83 100 n/a n/a

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@nihui