Install PHP image cropping extension Tclip on MacOS, _PHP tutorial

MacOS installs the PHP image cropping extension Tclip.

Tclip is used for image cropping and has the following features:

Can perform face recognition. If there is a face in the picture, the face area will automatically be regarded as an important area and will not be cropped.
Automatically identify other important areas. If no face is recognized in the image, the heavy area is calculated based on the feature distribution.
In summary, important areas in an image are automatically identified and retained when cropping the image.
Source code address: https://github.com/exinnet/tclip

Install opencv

According to the instructions on github, there is no problem installing on CentOS, but it hangs on my MacOS.

The first problem encountered is that opencv cannot be installed. Fortunately, I downloaded the latest opencv-2.4.11 from github and installed it successfully.

Download address: https://github.com/Itseez/opencv/releases

Use the latest version of OpenCV 2.4.11

Install dependencies

Before installing opencv, install some dependency packages:

Copy code The code is as follows:
brew install gtk pkgconfig libpng zlib libjpeg libtiff cmake

Tips: For the installation and use of brew, please refer to http://brew.sh/

Install opencv

Start installing opencv:

Copy code The code is as follows:
tar zxf opencv-2.4.11.tar.gz
cd opencv-2.4.11
cmake CMakeLists.txt
make && make install

Install php tclip

Download first: https://github.com/exinnet/tclip/archive/master.zip

Then continue:

Copy code The code is as follows:
unzip tclip-master.zip
cd tclip-master/php_ext
phpize
./configure

If nothing else happens, you should be dead at this point. Tip:

Copy code The code is as follows:
checking for opencv.pc file in default path... found in /usr/lib/pkgconfig
found in /usr/local/lib/pkgconfig
configure: error: no result from pkg-config opencv --libs --cflags opencv

On the Tclip author's page http://www.bo56.com/tclip face recognition image cropping/#download

In the comments, some netizens also encountered similar problems and suggested the following modifications:

Change the judgment statement test ${i:${#i}-3} = “.so” in config.m4 to test ${i:${#i}-6} = “.dylib” , and try to rename the .so on line 46 to .dylib
Still prompting no result error~

Look through the code of config.m4 and execute pkg-config opencv --libs --cflags. The output of opencv:

Copy code The code is as follows:
-I/usr/local/include/opencv -I/usr/local/include -L/usr/local/lib -lopencv_calib3d -lopencv_contrib -lopencv_core -lopencv_features2d -lopencv_flann -lopencv_gpu -lopencv_highgui -lopencv_imgproc -lopencv_legacy -lopencv_ml -lopencv _nonfree-lopencv_objdetect -lopencv_ocl -lopencv_photo -lopencv_stitching -lopencv_superres -lopencv_ts -lopencv_video -lopencv_videostab

I felt something was wrong, so I ran to the server where Linux was successfully installed and executed it. The output was as follows:

Copy code The code is as follows:
-I/usr/local/include/opencv -I/usr/local/include /usr/local/lib/libopencv_calib3d.so /usr/local/lib/libopencv_contrib.so /usr/local/lib/libopencv_core.so /usr /local/lib/libopencv_features2d.so /usr/local/lib/libopencv_flann.so /usr/local/lib/libopencv_gpu.so /usr/local/lib/libopencv_highgui.so /usr/local/lib/libopencv_imgproc.so /usr /local/lib/libopencv_legacy.so /usr/local/lib/libopencv_ml.so /usr/local/lib/libopencv_nonfree.so /usr/local/lib/libopencv_objdetect.so /usr/local/lib/libopencv_photo.so /usr /local/lib/libopencv_stitching.so /usr/local/lib/libopencv_ts.so /usr/local/lib/libopencv_video.so /usr/local/lib/libopencv_videostab.so

Look at his judgment code again:

Copy code The code is as follows:
OPENCV_FLAGS="`pkg-config opencv --libs --cflags opencv`"
for i in $OPENCV_FLAGS;do
if test ${i:0:2} = "-I" ;then
PHP_ADD_INCLUDE(${i:2})
elif test ${i:${#i}-3} = ".so" ;then
dir_name=`dirname $i`
file_name=${i/$dir_name/}
file_name=${file_name//lib/}
file_name=${file_name/.so/}
PHP_ADD_LIBRARY_WITH_PATH($file_name,$dir_name,TCLIP_SHARED_LIBADD)
else
AC_MSG_ERROR([no result from pkg-config opencv --libs --cflags opencv])
fi
done

I immediately understood that the output on Linux are all specific .so paths, and on MacOS they are all relative paths, while config.m4 is judged based on the specific path and extension. Once I understand the problem, I can solve it. Simple.

Modify the execution result of pkg-config opencv --libs --cflags opencv to the specific path and replace it in config.m4:

Copy code The code is as follows:
OPENCV_FLAGS="-I/usr/local/include/opencv -I/usr/local/include /usr/local/lib/libopencv_calib3d.dylib /usr/local/lib/libopencv_contrib.dylib /usr/local/lib/libopencv_core. dylib /usr/local/lib/libopencv_features2d.dylib /usr/local/lib/libopencv_flann.dylib /usr/local/lib/libopencv_gpu.dylib /usr/local/lib/libopencv_highgui.dylib /usr/local/lib/libopencv_imgproc. dylib /usr/local/lib/libopencv_legacy.dylib /usr/local/lib/libopencv_ml.dylib /usr/local/lib/libopencv_nonfree.dylib /usr/local/lib/libopencv_objdetect.dylib /usr/local/lib/libopencv_photo. dylib /usr/local/lib/libopencv_stitching.dylib /usr/local/lib/libopencv_ts.dylib /usr/local/lib/libopencv_video.dylib /usr/local/lib/libopencv_videostab.dylib"

Continue execution:

Copy code The code is as follows:
phpize
./configure
make
make install

The installation was successfully completed.

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