basler / meta-basler-imx8 Goto Github PK

View Code? Open in Web Editor NEW

2.0 2.0 6.0 103 KB

OpenEmbedded/Yocto layer for Basler Mipi Cameras on the i.MX8 platform

License: Other

BitBake 10.31% C++ 25.63% Shell 50.34% NASL 11.30% Clojure 2.43%

meta-basler-imx8's People

Contributors

Stargazers

Watchers

Forkers

marcusfolkesson gorka3reta sd-babn apbr obe1line mirikakang

meta-basler-imx8's Issues

Failed to execute "pylon"

Hi,

I've followed the steps but I get an error when I execute "pylon" command (same for # GENICAM_GENTL64_PATH=/opt/dart-bcon-mipi/lib /opt/pylon6/bin/pylonviewer though I have hanged pylon6 for pylon, otherwise I doesn't work). This is what I get:

root@imx8mmevk:~# pylon
QIconvCodec::convertToUnicode: using Latin-1 for conversion, iconv_open failed
QIconvCodec::convertFromUnicode: using Latin-1 for conversion, iconv_open failed
qt.[ 184.916384] audit: type=1701 audit(1616581699.048:5): auid=4294967295 uid=0 gid=0 ses=4294967295 pid=760 comm="pylonviewer" exe="/opt/pylon/bin/pylonviewer" sig=6 res=1
qpa.xcb: could not connect to display
qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found.
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, wayland-egl, wayland, webgl, xcb.

Aborted

Host Linux distro: Ubuntu 20.04 (Focal Fossa)
Yocto version: Hardknott
Board: imx8mmevk
Camera: da4200-30mci
Image: imx-image-multimedia

If more info is needed please tell me. I know that the issue is related to Qt but I'm unable to solve it by my own.

Sources on codeaurora.org not available anymore and in the future - step 2 not working

See https://bye.codeaurora.org/

Solution found for Kirkstone release and step 2:
repo init -u https://github.com/nxp-imx/imx-manifest -b imx-linux-kirkstone -m imx-5.15.71-2.2.0.xml

Basler DAA2500-60mc not running at 60 FPS

Hi!

I'm currently working with the evaluation board of the imx8mp SoC from NXP and Basler DAA2500-60mc Camera.
I have built the yocto images Zeus 5.4.70-2.3.2 and Hardknott 5.10.72-2.2.0 which includes basler layers.

I'am trying to run the camera at 60 FPS. For this, I have modified /etc/default/imx8-isp and Sensor_DAA2500_60MC_500_setup.sh files to work in 1080P60 mode (MODE_DAA2500_60MC_500=1080P60).

I have used the following command to check camera's framerate:
gst-launch-1.0 v4l2src device=/dev/video2 ! "video/x-raw,width=640,height=480" ! fpsdisplaysink text-overlay=true

The problem is that in yocto Zeus 5.4.70-2.3.2 runs at 60 FPS (maximum) but when I upgrade yocto version to Hardknott 5.10.72-2.2.0 runs at 30 FPS (maximum), even making the same changes in the two yoctos.

Missing sensor setup script

Hi,

Script run.sh references script Sensor_${ISP_CONFIG_0}_setup.sh, but it is not installed by any recipe. Is this file mandatory to use the camera ?

best regards,

Yocto and Basler daA2500-60mc problem

Hi!

I'm currently working with the evaluation board of the imx8mp SoC from NXP (Link).

I have built the yocto image following the instructions of the readme in this repository and I have changed the fdtfile in uboot from the default one to the "imx8mp-evk-basler.dtb".

The problem is that the camera is being detected (in dmesg and using detect_cameras.sh it shows the model and the serial number), but no device is registered when the board boots up.

If I set up the fdtfile in uboot for any of the ones using a isp, a device is registered (I don't understand why this happens) but the camera, as it does not have isp capabilities, does not work. When I launch pylon, no camera is listed.

Any help would be much appreciated.

Carlos.

Basler memory leaks

Description
I'm running a Yocto Hardknott with basler meta layer and a Basler A2500-60mci.
Everything is working just fine, i was able to create my application easily.

When I tested it using Valgrind though, I noticed some memory leaks on basler library (total of 616KB),
and I wanted to ask if this could be false positive or something else.

Thank you

Valgrind log

==23755== Thread 4:
==23755== Conditional jump or move depends on uninitialised value(s)
==23755==    at 0xD51A150: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD51A7E7: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD518CCF: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD50D74F: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD50D837: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD338B7B: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD316A6B: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD3128EB: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD2EB46B: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD303013: IFOpenDevice (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0x8E034BB: ??? (in /opt/pylon/lib/libpylon_TL_gtc-6.2.0.so)
==23755==    by 0x8DFDB63: ??? (in /opt/pylon/lib/libpylon_TL_gtc-6.2.0.so)
==23755==  Uninitialised value was created by a stack allocation
==23755==    at 0xD51A780: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==
==23755== Conditional jump or move depends on uninitialised value(s)
==23755==    at 0xD51A310: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD51A83F: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD518CCF: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD50D74F: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD50D837: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD338B7B: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD316A6B: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD3128EB: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD2EB46B: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD303013: IFOpenDevice (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0x8E034BB: ??? (in /opt/pylon/lib/libpylon_TL_gtc-6.2.0.so)
==23755==    by 0x8DFDB63: ??? (in /opt/pylon/lib/libpylon_TL_gtc-6.2.0.so)
==23755==  Uninitialised value was created by a stack allocation
==23755==    at 0xD51A780: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==
==23755== Conditional jump or move depends on uninitialised value(s)
==23755==    at 0xD51A31C: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD51A83F: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD518CCF: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD50D74F: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD50D837: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD338B7B: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD316A6B: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD3128EB: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD2EB46B: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD303013: IFOpenDevice (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0x8E034BB: ??? (in /opt/pylon/lib/libpylon_TL_gtc-6.2.0.so)
==23755==    by 0x8DFDB63: ??? (in /opt/pylon/lib/libpylon_TL_gtc-6.2.0.so)
==23755==  Uninitialised value was created by a stack allocation
==23755==    at 0xD51A780: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==
==23755== Syscall param ioctl(VKI_V4L2_S_EXT_CTRLS).controls[].ptr[] points to uninitialised byte(s)
==23755==    at 0x642C750: ioctl (ioctl.S:26)
==23755==    by 0xD50B9F3: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD50BCF3: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD509FE7: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD4EEE7B: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD338027: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD50E46B: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD50F7EF: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD50D78F: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD50D837: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD338B7B: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD316A6B: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==  Address 0x8312088 is on thread 4's stack
==23755==  Uninitialised value was created by a stack allocation
==23755==    at 0xD518CAC: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==
==23755== Conditional jump or move depends on uninitialised value(s)
==23755==    at 0xD51BA18: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD527AFB: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD51903F: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD50D7A3: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD50D837: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD338B7B: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD316A6B: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD3128EB: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD2EB46B: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD303013: IFOpenDevice (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0x8E034BB: ??? (in /opt/pylon/lib/libpylon_TL_gtc-6.2.0.so)
==23755==    by 0x8DFDB63: ??? (in /opt/pylon/lib/libpylon_TL_gtc-6.2.0.so)
==23755==  Uninitialised value was created by a stack allocation
==23755==    at 0xD518CAC: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==
==23755== Conditional jump or move depends on uninitialised value(s)
==23755==    at 0xD51B9BC: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD51BA97: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD527AFB: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD51903F: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD50D7A3: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD50D837: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD338B7B: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD316A6B: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD3128EB: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD2EB46B: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD303013: IFOpenDevice (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0x8E034BB: ??? (in /opt/pylon/lib/libpylon_TL_gtc-6.2.0.so)
==23755==  Uninitialised value was created by a stack allocation
==23755==    at 0xD518CAC: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==
==23755== Conditional jump or move depends on uninitialised value(s)
==23755==    at 0xD51B9CC: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD51BA97: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD527AFB: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD51903F: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD50D7A3: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD50D837: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD338B7B: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD316A6B: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD3128EB: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD2EB46B: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD303013: IFOpenDevice (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0x8E034BB: ??? (in /opt/pylon/lib/libpylon_TL_gtc-6.2.0.so)
==23755==  Uninitialised value was created by a stack allocation
==23755==    at 0xD518CAC: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==
==23755== Conditional jump or move depends on uninitialised value(s)
==23755==    at 0xD51D720: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD51D973: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD553C57: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD5279D3: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD51903F: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD50D7A3: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD50D837: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD338B7B: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD316A6B: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD3128EB: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD2EB46B: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD303013: IFOpenDevice (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==  Uninitialised value was created by a stack allocation
==23755==    at 0xD518CAC: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==
==23755== Conditional jump or move depends on uninitialised value(s)
==23755==    at 0xD51D760: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD51D973: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD553C57: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD5279D3: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD51903F: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD50D7A3: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD50D837: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD338B7B: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD316A6B: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD3128EB: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD2EB46B: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==    by 0xD303013: IFOpenDevice (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)
==23755==  Uninitialised value was created by a stack allocation
==23755==    at 0xD518CAC: ??? (in /opt/dart-bcon-mipi/lib/basler-daA2500-60mci-imx8.cti)

Different source directory

After cloning basler's repos I have realised that that my "sources" directory is slightly different than the README's one. While I get this:

.
├── base
├── meta-basler-imx8
├── meta-basler-tools
├── meta-browser
├── meta-clang
├── meta-freescale
├── meta-freescale-3rdparty
├── meta-freescale-distro
├── meta-imx
├── meta-nxp-demo-experience
├── meta-openembedded
├── meta-python2
├── meta-qt5
├── meta-timesys
├── meta-virtualization
└── poky

there is no meta-virtualization in the original and I dunnot have the meta-rust folder. I have followed the instructions carefully.

I'm posting this cause it may be the cause that I cannot run "pylon" successfully after building the imx-image-full. The error of running "pylon" persists:

QIconvCodec::convertToUnicode: using Latin-1 for conversion, iconv_open failed
QIconvCodec::convertFromUnicode: using Latin-1 for conversion, iconv_open failed
qt.qpa.xcb: could not connect to display 
qt.qpa.plugin: Could not load the[  108.521941] audit: type=1701 audit(1655714451.990:5): auid=4294967295 uid=0 gid=0 ses=4294967295 pid=763 comm="pylonviewer" exe="/opt/pylon/bin/pylonviewer" sig=6 res=1
 Qt platform plugin "xcb" in "" even though it was found.
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, wayland-egl, wayland, webgl, xcb.

Aborted

My host machine is Debian 11.3.
The board is imx8mminilpd4
I have 2 cameras, daa2500-60mci and daa4200-30mci

Basler layer for Kirkstone

Good morning,
there is any ETA for the Basler meta layer to be released on Yocto Kirkstone?

I have a Variscite IMX8MP board, and I need to use NPU power to inference on Basler camera images. The problem is that Variscite has released Hardknott Yocto on the 5.10.72 kernel, which as NXP told me does not support some more complex networks like YOLO.

The last revision of Variscite is on the new LTS Yocto version Kirkstone (kernel 5.15.71), that on the other side does not have Basler support.

Or do you know if I can convert the actual Basler honister (5.15.x) layer to be used also on Kirkstone?

Thank you,
Best regards

Recommend Projects

React

A declarative, efficient, and flexible JavaScript library for building user interfaces.
Vue.js

🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
Typescript

TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
TensorFlow

An Open Source Machine Learning Framework for Everyone
Django

The Web framework for perfectionists with deadlines.
Laravel

A PHP framework for web artisans
D3

Bring data to life with SVG, Canvas and HTML. 📊📈🎉

Recommend Topics

javascript

JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
web

Some thing interesting about web. New door for the world.
server

A server is a program made to process requests and deliver data to clients.
Machine learning

Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
Visualization

Some thing interesting about visualization, use data art
Game

Some thing interesting about game, make everyone happy.

Recommend Org

Facebook

We are working to build community through open source technology. NB: members must have two-factor auth.
Microsoft

Open source projects and samples from Microsoft.
Google

Google ❤️ Open Source for everyone.
Alibaba

Alibaba Open Source for everyone
D3

Data-Driven Documents codes.
Tencent

China tencent open source team.