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基于Petalinux19.1的OpenCV APP搭建

一、前言

 想在Xilinx ZCU102平台上运行Linux系统，并实现简单OpenCV App的运行，采用Petalinux19.1进行工程搭建。

 

二、OpenCV App搭建

1.准备Petalinux工程

1）新建Petalinux工程：

    >petalinux-create  --type project --template zynqMP --name opencvtest

2）指定HDF文件：   

    >petalinux-config --get-hw-description=hdf_file/

3）使能OpenCV、X11的Package：

    >petalinux-config -c rootfs

    使能

    使能

4）Build工程，封装得到BOOT.BIN和image.ub

    >petalinux-build

    >petalinux-package --boot --fsbl images/linux/zynqmp_fsbl.elf --fpga images/linux/system.bit --u-boot images/linux/u-boot.elf --force

把BOOT.BIN和image.ub考入SD卡，ZCU102平台可运行Linux；

 

2.新建OpenCV App

>petalinux--create -t apps --template c++ --name opencvapp --enable

>cd xxx/project-spec/meta-user/recipes-apps/opencvapp/files

1)opencvapp.cpp

#include <stdio.h>
#include <opencv2/highgui/highgui.hpp>using namespace cv;
using namespace std;int main(int argc, char** argv){Mat img;img = imread(argv[1],1);if((argc != 2) || (!img.data)){printf("Usage: XX yy.jpg\n");return -1;}imshow("imshooow",img);waitKey(0);return 0;}

2）CMakeLists.txt

 

# cmake needs this line
cmake_minimum_required(VERSION 2.8)add_definitions(-std=c++11 -Werror=return-type)# Define project name
project(opencvapp)# Find OpenCV, you may need to set OpenCV_DIR variable
# to the absolute path to the directory containing OpenCVConfig.cmake file
# via the command line or GUI
find_package(OpenCV REQUIRED)if(CMAKE_VERSION VERSION_LESS "2.8.11")# Add OpenCV headers location to your include pathsinclude_directories(${OpenCV_INCLUDE_DIRS})
endif()set(SRC_LIST opencvapp.cpp )
# Declare the executable target built from your sources
add_executable(opencvapp ${SRC_LIST})# Link your application with OpenCV libraries
target_link_libraries(opencvapp ${OpenCV_LIBS})

3）Makefile

APP = opencvapp# Add any other object files to this list below
APP_OBJS = opencvapp.oall: build
build: $(APP)CXXFLAGS += $(shell pkg-config --cflags opencv)
LDFLAGS += $(shell pkg-config --libs opencv)$(APP): $(APP_OBJS)$(CXX) $(CXXFLAGS) $(LDFLAGS) -o $@ $(APP_OBJS) $(LDLIBS)clean:rm -f $(APP) *.elf *.gdb *.o

 4) opencvapp.bb

#
# This file is the opencvapp recipe.
#SUMMARY = "Simple opencvapp application"
SECTION = "PETALINUX/apps"
LICENSE = "MIT"
LIC_FILES_CHKSUM = "file://${COMMON_LICENSE_DIR}/MIT;md5=0835ade698e0bcf8506ecda2f7b4f302"SRC_URI = "file://opencvapp.cpp \file://CMakeLists.txt \"S = "${WORKDIR}"DEPENDS += "opencv"
inherit pkgconfig cmakedo_install() {install -d ${D}${bindir}install -m 0755 opencvapp ${D}${bindir}
}

 

3. 编译App

直接编译app：

    >petalinux-build -c opencvapp

编译完成后，找到xxxxx/tmp/opencvtest-2019.12.xx/deploy/rpm/aarch64/opencvapp-1.0-r0.aarch64.rpm文件，

将其在windows下解压，再解压，可得到：

/usr/bin/opencvapp

 

4. 运行

将opencvapp和test.jpg经SSH传入已运行的ZCU102平台中，

    >chmod 777 opencvapp test.jpg

配置SSH显示到本地：export DISPLAY=192.168.0.xx:0.0，然后运行

    >./opencvapp test.jpg

可（经SSH）显示出图片。

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

本文标签： 基于Petalinux191的OpenCV APP搭建

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