Display camera frame

vendor/gocv.io/x/gocv/Dockerfile

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+FROM ubuntu:16.04 AS opencv
+LABEL maintainer="hybridgroup"
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+            git build-essential cmake pkg-config unzip libgtk2.0-dev \
+            curl ca-certificates libcurl4-openssl-dev libssl-dev \
+            libavcodec-dev libavformat-dev libswscale-dev libtbb2 libtbb-dev \
+            libjpeg-dev libpng-dev libtiff-dev libdc1394-22-dev && \
+            rm -rf /var/lib/apt/lists/*
+
+ARG OPENCV_VERSION="4.2.0"
+ENV OPENCV_VERSION $OPENCV_VERSION
+
+RUN curl -Lo opencv.zip https://github.com/opencv/opencv/archive/${OPENCV_VERSION}.zip && \
+            unzip -q opencv.zip && \
+            curl -Lo opencv_contrib.zip https://github.com/opencv/opencv_contrib/archive/${OPENCV_VERSION}.zip && \
+            unzip -q opencv_contrib.zip && \
+            rm opencv.zip opencv_contrib.zip && \
+            cd opencv-${OPENCV_VERSION} && \
+            mkdir build && cd build && \
+            cmake -D CMAKE_BUILD_TYPE=RELEASE \
+                  -D CMAKE_INSTALL_PREFIX=/usr/local \
+                  -D OPENCV_EXTRA_MODULES_PATH=../../opencv_contrib-${OPENCV_VERSION}/modules \
+                  -D WITH_JASPER=OFF \
+                  -D BUILD_DOCS=OFF \
+                  -D BUILD_EXAMPLES=OFF \
+                  -D BUILD_TESTS=OFF \
+                  -D BUILD_PERF_TESTS=OFF \
+                  -D BUILD_opencv_java=NO \
+                  -D BUILD_opencv_python=NO \
+                  -D BUILD_opencv_python2=NO \
+                  -D BUILD_opencv_python3=NO \
+                  -D OPENCV_GENERATE_PKGCONFIG=ON .. && \
+            make -j $(nproc --all) && \
+            make preinstall && make install && ldconfig && \
+            cd / && rm -rf opencv*
+
+#################
+#  Go + OpenCV  #
+#################
+FROM opencv AS gocv
+LABEL maintainer="hybridgroup"
+
+ARG GOVERSION="1.13.5"
+ENV GOVERSION $GOVERSION
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+            git software-properties-common && \
+            curl -Lo go${GOVERSION}.linux-amd64.tar.gz https://dl.google.com/go/go${GOVERSION}.linux-amd64.tar.gz && \
+            tar -C /usr/local -xzf go${GOVERSION}.linux-amd64.tar.gz && \
+            rm go${GOVERSION}.linux-amd64.tar.gz && \
+            rm -rf /var/lib/apt/lists/*
+
+ENV GOPATH /go
+ENV PATH $GOPATH/bin:/usr/local/go/bin:$PATH
+
+RUN mkdir -p "$GOPATH/src" "$GOPATH/bin" && chmod -R 777 "$GOPATH"
+WORKDIR $GOPATH
+
+RUN go get -u -d gocv.io/x/gocv && go run ${GOPATH}/src/gocv.io/x/gocv/cmd/version/main.go