本帖最后由 eevee 于 2017-5-17 14:22 编辑
OS：官方固件 Xubuntu 16.04
- Install
1.1) Required Packages
# compiler ✓
$ sudo apt-get install build-essential
# required ✓
$ sudo apt-get install cmake git libgtk2.0-dev pkg-config libavcodec-dev libavformat-dev libswscale-dev
# optional ✓
$ sudo apt-get install python-dev python-numpy libtbb2 libtbb-dev libjpeg-dev libpng-dev libtiff-dev libjasper-dev libdc1394-22-dev
1.2) Getting OpenCV Source Code
$ git clone https://github.com/opencv/opencv.git
$ cd opencv/
$ git checkout 3.2.0
If use extra modules:
$ git clone https://github.com/opencv/opencv_contrib.git
$ cd opencv_contrib/
$ git checkout 3.2.0
1.3) Building OpenCV from Source
$ cd opencv/
$ mkdir build
$ cd build/
$ export PY_NAME=$(python -c 'from sys import version_info as v; print("python%d.%d" % v[:2])')
$ export PY_NUMPY_DIR=$(python -c 'import os.path, numpy.core; print(os.path.dirname(numpy.core.__file__))')
$ cmake -DCMAKE_BUILD_TYPE=RELEASE \
-DCMAKE_INSTALL_PREFIX=/usr/local \
\
-DPYTHON2_EXECUTABLE=$(which python) \
-DPYTHON_INCLUDE_DIR=/usr/include/$PY_NAME \
-DPYTHON_INCLUDE_DIR2=/usr/include/aarch64-linux-gnu/$PY_NAME \
-DPYTHON_LIBRARY=/usr/lib/aarch64-linux-gnu/lib$PY_NAME.so \
-DPYTHON2_NUMPY_INCLUDE_DIRS=/usr/lib/$PY_NAME/dist-packages/numpy/core/include/ \
\
-DBUILD_DOCS=OFF \
-DBUILD_EXAMPLES=OFF \
-DBUILD_TESTS=OFF \
-DBUILD_PERF_TESTS=OFF \
\
-DOPENCV_EXTRA_MODULES_PATH=../../opencv_contrib/modules \
..
$ make -j$(nproc --all)
$ sudo make install
- Examples
2.1) Canny Edge Detection
canny.py:
#!/usr/bin/env python
import cv2
import numpy as np
def main():
img = cv2.imread('../data/messi5.jpg', 0)
edges = cv2.Canny(img, 100, 200)
cv2.imshow('Original & Edge', np.vstack((img, edges)))
cv2.waitKey()
cv2.destroyAllWindows()
if __name__ == '__main__':
main()
- Appendix
3.1) Install pip
$ python --version
Python 2.7.12
$ curl -O https://bootstrap.pypa.io/get-pip.py
$ python get-pip.py
$ vi ~/.pip/pip.conf
[global]
format=columns
index-url=http://mirrors.aliyun.com/pypi/simple/
[install]
trusted-host=mirrors.aliyun.com