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  1. 59
      Dockerfile
  2. 2
      Dockerfile.build
  3. 635
      LICENSE
  4. 69
      README.md
  5. 27
      extrapackages
  6. 21
      opencv4nodejs_webcam/LICENSE
  7. 70
      opencv4nodejs_webcam/README.md
  8. BIN
      opencv4nodejs_webcam/dlib-master.zip
  9. 0
      opencv4nodejs_webcam/img/banner.jpeg
  10. 0
      opencv4nodejs_webcam/img/node_server.png
  11. 90
      opencv4nodejs_webcam/install-npm-opencv.sh
  12. BIN
      opencv4nodejs_webcam/opencv-4.x.zip
  13. BIN
      opencv4nodejs_webcam/opencv_contrib.zip
  14. 0
      opencv4nodejs_webcam/package.json
  15. 0
      opencv4nodejs_webcam/server.js
  16. 0
      opencv4nodejs_webcam/views/index.ejs
  17. 828
      package-lock.json
  18. 73
      setup.sh

59
Dockerfile
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ARG NODE_VERSION=6.17.1
FROM mhart/alpine-node:${NODE_VERSION}
LABEL \
org.opencontainers.image.title="Docker Image of opencv4nodejs_webcam" \
org.opencontainers.image.authors="Swarmlab.io <rootapostolos@swarmlab.io>"
#ENV PATH=/usr/local/texlive/bin/x86_64-linuxmusl:/usr/local/texlive/2020/bin/x86_64-linuxmusl:${PATH}
ENV dockeruser node
COPY \
setup.sh \
extrapackages \
/root/
RUN /root/setup.sh
# nodejs npm install --- opencv----- uncomment --------------------------
ARG USER1=node
ARG NODEPROJECT1=opencv4nodejs_webcam
ENV USER1 ${USER1}
ENV NODEPROJECT ${NODEPROJECT1}
ARG OPENCV_VERSION=4.x
ARG DLIB_VERSION=master
ARG LIB_PREFIX='/usr/local'
ENV OPENCV_VERSION=${OPENCV_VERSION} \
DLIB_VERSION=${DLIB_VERSION} \
LIB_PREFIX=${LIB_PREFIX} \
OPENCV4NODEJS_DISABLE_AUTOBUILD=1 \
DLIB_INCLUDE_DIR='$LIB_PREFIX/include' \
DLIB_LIB_DIR='$LIB_PREFIX/lib'
COPY ${NODEPROJECT} /home/${USER1}/${NODEPROJECT}
RUN /home/${USER1}/${NODEPROJECT}/install-npm-opencv.sh
WORKDIR /home/${USER1}
RUN chown -R ${USER1}.${USER1} /home/${USER1}
USER ${USER1}
#RUN set -uex; \
# npm install;
USER root
USER ${USER1}
#RUN set -uex; \
# npm cache clean --force;
# --------------------------------------------------------
WORKDIR /home/${dockeruser}
VOLUME ["/home/${dockeruser}"]
CMD ["tail","-f","/dev/null"]

2
Dockerfile.build
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docker build -f Dockerfile -t hub.swarmlab.io:5443/opencv4nodejswebcam .

635
LICENSE
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@ -1,21 +1,614 @@
MIT License GNU AFFERO GENERAL PUBLIC LICENSE
Copyright (c) 2021 Narendiran Krishnan Version 3, 19 November 2007
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OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM
PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR
CORRECTION.
16. Limitation of Liability.
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL
ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS THE PROGRAM
AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL,
INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO
USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED
INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE
PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER
PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
17. Interpretation of Sections 15 and 16.
If the disclaimer of warranty and limitation of liability provided above cannot
be given local legal effect according to their terms, reviewing courts shall
apply local law that most closely approximates an absolute waiver of all civil
liability in connection with the Program, unless a warranty or assumption
of liability accompanies a copy of the Program in return for a fee. END OF
TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest possible
use to the public, the best way to achieve this is to make it free software
which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest to attach
them to the start of each source file to most effectively state the exclusion
of warranty; and each file should have at least the "copyright" line and a
pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software: you can redistribute it and/or modify it under
the terms of the GNU Affero General Public License as published by the Free
Software Foundation, either version 3 of the License, or (at your option)
any later version.
This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
details.
You should have received a copy of the GNU Affero General Public License along
with this program. If not, see <http s ://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If your software can interact with users remotely through a computer network,
you should also make sure that it provides a way for users to get its source.
For example, if your program is a web application, its interface could display
a "Source" link that leads users to an archive of the code. There are many
ways you could offer source, and different solutions will be better for different
programs; see section 13 for the specific requirements.
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary. For
more information on this, and how to apply and follow the GNU AGPL, see <http
s ://www.gnu.org/licenses/>.

69
README.md
View File

@ -1,70 +1 @@
<p align="center">
<img src="img/banner.jpeg">
</p>
# Using opencv4nodejs to stream your webcam with Express, ejs and Socket IO
## Medium Blog [Link](https://medium.com/swlh/video-streaming-using-opencv4nodejs-with-node-js-express-and-socket-io-3806abb049a)
Follow the steps to stream your webcam with Express and socket io
Link for Socket IO Content Delivery Network which is hosted by cloudflare [Link](https://cdnjs.com/libraries/socket.io)
### Step 1:
Open your terminal and git clone with the following command
```
git clone https://github.com/narenltk/webcam_.git
```
### Step 2:
Since I have given all the dependencies in the package.json all you need to do is give the following command
```
npm install
```
This command actually installs all the dependencies given in the package.json file.
### Step 3:
Once your done with all the steps given above all you to do is just fire up the server, with the following command and check your localhost
```
npm start
or
node server.js
or
nodemon server.js
```
<p align="center">
<img src="img/node_server.png">
</p>
checkout "http://localhost:3030"
I have used the port 3030 and you can change the port to any number you like.
## Note
You can also host the application by creating your own SSL certificate and the link for code for that is here [Link](https://github.com/narenltk/ssl_.git)
Or in any case your lazy like me you can also host the application using ngrok to host in a public server and with the following command
Linux users command:
```
./ngrok http 3030
```
windows users command:
```
ngrok http 3030
```

27
extrapackages
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@ -0,0 +1,27 @@
curl
cmake
clang
clang-dev
gcc
g++
libpng-dev
libjpeg-turbo
libwebp
tiff
openexr
jasper
openblas
libx11-dev
zlib
xz
wget
unzip
build-base
python
libjpeg-turbo-dev
libwebp-dev
tiff-dev
openexr-dev
jasper-dev
openblas-dev
zlib-dev

21
opencv4nodejs_webcam/LICENSE
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@ -0,0 +1,21 @@
MIT License
Copyright (c) 2021 Narendiran Krishnan
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

70
opencv4nodejs_webcam/README.md
View File

@ -0,0 +1,70 @@
<p align="center">
<img src="img/banner.jpeg">
</p>
# Using opencv4nodejs to stream your webcam with Express, ejs and Socket IO
## Medium Blog [Link](https://medium.com/swlh/video-streaming-using-opencv4nodejs-with-node-js-express-and-socket-io-3806abb049a)
Follow the steps to stream your webcam with Express and socket io
Link for Socket IO Content Delivery Network which is hosted by cloudflare [Link](https://cdnjs.com/libraries/socket.io)
### Step 1:
Open your terminal and git clone with the following command
```
git clone https://github.com/narenltk/webcam_.git
```
### Step 2:
Since I have given all the dependencies in the package.json all you need to do is give the following command
```
npm install
```
This command actually installs all the dependencies given in the package.json file.
### Step 3:
Once your done with all the steps given above all you to do is just fire up the server, with the following command and check your localhost
```
npm start
or
node server.js
or
nodemon server.js
```
<p align="center">
<img src="img/node_server.png">
</p>
checkout "http://localhost:3030"
I have used the port 3030 and you can change the port to any number you like.
## Note
You can also host the application by creating your own SSL certificate and the link for code for that is here [Link](https://github.com/narenltk/ssl_.git)
Or in any case your lazy like me you can also host the application using ngrok to host in a public server and with the following command
Linux users command:
```
./ngrok http 3030
```
windows users command:
```
ngrok http 3030
```

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#!/bin/sh
cd /
mkdir /opencv \
&& mv /home/${USER1}/${NODEPROJECT}/dlib-master.zip /dlib.zip \
&& mv /home/${USER1}/${NODEPROJECT}/opencv.zip /home/${USER1}/${NODEPROJECT}/opencv_contrib.zip /opencv \
&& cd /opencv \
&& unzip -qq opencv.zip \
&& mv opencv-${OPENCV_VERSION} opencv \
&& unzip -qq opencv_contrib.zip \
&& mv opencv_contrib-${OPENCV_VERSION} opencv_contrib \
&& ls -la \
&& mkdir opencv/build \
&& cd opencv/build
opencv_cmake_flags="-D CMAKE_BUILD_TYPE=RELEASE \
-D BUILD_DOCS=OFF \
-D BUILD_TESTS=OFF \
-D BUILD_PERF_TESTS=OFF \
-D BUILD_JAVA=OFF \
-D BUILD_opencv_apps=OFF \
-D BUILD_opencv_aruco=OFF \
-D BUILD_opencv_bgsegm=OFF \
-D BUILD_opencv_bioinspired=OFF \
-D BUILD_opencv_ccalib=OFF \
-D BUILD_opencv_datasets=OFF \
-D BUILD_opencv_dnn_objdetect=OFF \
-D BUILD_opencv_dpm=OFF \
-D BUILD_opencv_fuzzy=OFF \
-D BUILD_opencv_hfs=OFF \
-D BUILD_opencv_java_bindings_generator=OFF \
-D BUILD_opencv_js=OFF \
-D BUILD_opencv_img_hash=OFF \
-D BUILD_opencv_line_descriptor=OFF \
-D BUILD_opencv_optflow=OFF \
-D BUILD_opencv_phase_unwrapping=OFF \
-D BUILD_opencv_python3=OFF \
-D BUILD_opencv_python_bindings_generator=OFF \
-D BUILD_opencv_reg=OFF \
-D BUILD_opencv_rgbd=OFF \
-D BUILD_opencv_saliency=OFF \
-D BUILD_opencv_shape=OFF \
-D BUILD_opencv_stereo=OFF \
-D BUILD_opencv_stitching=OFF \
-D BUILD_opencv_structured_light=OFF \
-D BUILD_opencv_superres=OFF \
-D BUILD_opencv_surface_matching=OFF \
-D BUILD_opencv_ts=OFF \
-D BUILD_opencv_xobjdetect=OFF \
-D BUILD_opencv_xphoto=OFF \
-D CMAKE_INSTALL_PREFIX=$LIB_PREFIX \
-D OPENCV_EXTRA_MODULES_PATH=../../opencv_contrib/modules" \
&& cmake $opencv_cmake_flags .. \
&& make -j $(nproc)
cd /opencv/opencv/build \
&& make install
cd /
rm -rf /opencv
dlib_cmake_flags="-D CMAKE_BUILD_TYPE=RELEASE \
-D CMAKE_INSTALL_PREFIX=$LIB_PREFIX \
-D DLIB_NO_GUI_SUPPORT=OFF \
-D DLIB_USE_BLAS=ON \
-D DLIB_PNG_SUPPORT=ON \
-D DLIB_JPEG_SUPPORT=ON \
-D DLIB_USE_CUDA=OFF" \
&& unzip -qq dlib.zip \
&& mv dlib-${DLIB_VERSION} dlib \
&& rm dlib.zip
cd dlib \
mkdir -p build \
cd build \
&& cmake $dlib_cmake_flags .. \
&& make -j $(nproc)
cd /dlib/build \
&& make install
cp /dlib/dlib/*.txt $LIB_PREFIX/include/dlib/ \
&& cd / \
&& rm -rf /dlib
apk del .build-dependencies
apk add -u --no-cache $RUNTIME_DEPS
rm -rf /home/${USER1}/${NODEPROJECT}/opencv.zip /home/${USER1}/${NODEPROJECT}/opencv_contrib.zip /home/${USER1}/${NODEPROJECT}/dlib-master.zip
rm -rf /var/cache/apk/* /usr/share/man /usr/local/share/man /tmp/*

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828
package-lock.json
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@ -1,828 +0,0 @@
{
"name": "webcam_",
"version": "1.0.0",
"lockfileVersion": 1,
"requires": true,
"dependencies": {
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"resolved": "https://registry.npmjs.org/@types/component-emitter/-/component-emitter-1.2.10.tgz",
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},
"@types/cookie": {
"version": "0.4.0",
"resolved": "https://registry.npmjs.org/@types/cookie/-/cookie-0.4.0.tgz",
"integrity": "sha512-y7mImlc/rNkvCRmg8gC3/lj87S7pTUIJ6QGjwHR9WQJcFs+ZMTOaoPrkdFA/YdbuqVEmEbb5RdhVxMkAcgOnpg=="
},
"@types/cors": {
"version": "2.8.9",
"resolved": "https://registry.npmjs.org/@types/cors/-/cors-2.8.9.tgz",
"integrity": "sha512-zurD1ibz21BRlAOIKP8yhrxlqKx6L9VCwkB5kMiP6nZAhoF5MvC7qS1qPA7nRcr1GJolfkQC7/EAL4hdYejLtg=="
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"@types/node": {
"version": "14.14.22",
"resolved": "https://registry.npmjs.org/@types/node/-/node-14.14.22.tgz",
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"resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.7.tgz",
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"negotiator": "0.6.2"
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}

73
setup.sh
View File

@ -0,0 +1,73 @@
#!/bin/sh
set -e
set -o pipefail
scheme="$1"
retry() {
retries=$1
shift
count=0
until "$@"; do
exit=$?
wait="$(echo "2^$count" | bc)"
count="$(echo "$count + 1" | bc)"
if [ "$count" -lt "$retries" ]; then
echo "Retry $count/$retries exited $exit, retrying in $wait seconds..."
sleep "$wait"
else
echo "Retry $count/$retries exited $exit, no more retries left."
return "$exit"
fi
done
}
echo "==> Install system packages"
apk --no-cache add \
bash \
gnupg \
graphviz \
py-pygments \
python2 \
python3 \
tar \
ttf-freefont \
wget \
make \
xz
# Dependencies needed by latexindent
apk --no-cache add \
git \
libc-dev \
linux-headers
apk --no-cache \
--repository=http://dl-cdn.alpinelinux.org/alpine/edge/testing \
add \
perl-file-homedir
#echo "==> Install TeXLive"
extrap=/root/extrapackages
if [ -f $extrap ]; then
while read -r line; do
extrapackages="$extrapackages $line"
done < $extrap
apk --no-cache add $extrapackages
else
echo "No extrapackages file"
fi
echo "==> Update packages"
npm install -g npm@8.1.3
echo "==> Clean up"
rm -rf \
/root/.gnupg \
/setup.sh \
/extrapackages
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