百度行驶证C++离线SDK V1.1 C#接入

目录

说明

效果

项目

代码

下载

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说明

自己根据SDK封装了动态库，然后C#调用。

SDK包结构

效果

项目

代码

using Newtonsoft.Json;
using System;
using System.Drawing;
using System.Runtime.InteropServices;
using System.Text;
using System.Windows.Forms;

namespace CSharpWinformTest
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        const string DllName = "DLSharp.dll";

        //行驶证正页

        [DllImport(DllName, EntryPoint = "dl_front_init_license", CallingConvention = CallingConvention.Cdecl)]
        internal extern static int dl_front_init_license(string key, string licenseFile, bool is_remote);

        [DllImport(DllName, EntryPoint = "dl_front_create", CallingConvention = CallingConvention.Cdecl)]
        internal extern static IntPtr dl_front_create();

        [DllImport(DllName, EntryPoint = "dl_front_init", CallingConvention = CallingConvention.Cdecl)]
        internal extern static int dl_front_init(IntPtr engine, string ini_path);

        [DllImport(DllName, EntryPoint = "dl_front_ocr", CallingConvention = CallingConvention.Cdecl)]
        internal extern static int dl_front_ocr(IntPtr engine, string image_path, StringBuilder ocr_result1, StringBuilder ocr_result2);

        [DllImport(DllName, EntryPoint = "dl_front_destroy", CallingConvention = CallingConvention.Cdecl)]
        internal extern static void dl_front_destroy(IntPtr engine);


        //行驶证副页

        [DllImport(DllName, EntryPoint = "dl_back_init_license", CallingConvention = CallingConvention.Cdecl)]
        internal extern static int dl_back_init_license(string key, string licenseFile, bool is_remote);

        [DllImport(DllName, EntryPoint = "dl_back_create", CallingConvention = CallingConvention.Cdecl)]
        internal extern static IntPtr dl_back_create();

        [DllImport(DllName, EntryPoint = "dl_back_init", CallingConvention = CallingConvention.Cdecl)]
        internal extern static int dl_back_init(IntPtr engine, string ini_path);

        [DllImport(DllName, EntryPoint = "dl_back_ocr", CallingConvention = CallingConvention.Cdecl)]
        internal extern static int dl_back_ocr(IntPtr engine, string image_path, StringBuilder ocr_result1, StringBuilder ocr_result2);

        [DllImport(DllName, EntryPoint = "dl_back_destroy", CallingConvention = CallingConvention.Cdecl)]
        internal extern static void dl_back_destroy(IntPtr engine);


        IntPtr front_engine;
        IntPtr back_engine;

        private void button1_Click(object sender, EventArgs e)
        {

            if (image_path == "")
            {
                return;
            }

            StringBuilder ocr_result1 = new StringBuilder(1024);
            StringBuilder ocr_result2 = new StringBuilder(1024);
            int res = dl_front_ocr(front_engine, image_path, ocr_result1, ocr_result2);
            if (res == 0)
            {

                Object jsonObject = JsonConvert.DeserializeObject(ocr_result1.ToString());
                textBox1.Text = JsonConvert.SerializeObject(jsonObject, Newtonsoft.Json.Formatting.Indented);
            }
            else
            {
                textBox1.Text = "识别失败";
            }
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            string key = "AISEE_xingshizheng_win_0530_3_3";
            string licenseFile = Application.StartupPath + "\\license\\license.ini";
            int res = -1;
            string ini_path = "";

            res = dl_front_init_license(key, licenseFile, false);
            Console.WriteLine(res.ToString());

            front_engine = dl_front_create();

            ini_path = Application.StartupPath + "\\resource\\vehiclecard_front_resource";
            res = dl_front_init(front_engine, ini_path);
            Console.WriteLine(res.ToString());

            res = dl_back_init_license(key, licenseFile, false);
            Console.WriteLine(res.ToString());

            back_engine = dl_back_create();

            ini_path = Application.StartupPath + "\\resource\\vehiclecard_back_resource";
            res = dl_back_init(back_engine, ini_path);
            Console.WriteLine(res.ToString());

            image_path = Application.StartupPath + "\\front_images\\2.jpg";
            //image_path = Application.StartupPath + "\\back_images\\1.png";

            pictureBox1.Image = new Bitmap(image_path);
        }

        private void Form1_FormClosing(object sender, FormClosingEventArgs e)
        {
            dl_front_destroy(front_engine);
            dl_back_destroy(back_engine);
        }

        string fileFilter = "*.*|*.bmp;*.jpg;*.jpeg;*.tiff;*.tiff;*.png";
        string image_path = "";

        private void button2_Click(object sender, EventArgs e)
        {
            OpenFileDialog ofd = new OpenFileDialog();
            ofd.Filter = fileFilter;
            if (ofd.ShowDialog() != DialogResult.OK) return;
            pictureBox1.Image = null;
            image_path = ofd.FileName;
            pictureBox1.Image = new Bitmap(image_path);
            textBox1.Text = "";
        }

        private void button3_Click(object sender, EventArgs e)
        {
            if (image_path == "")
            {
                return;
            }

            StringBuilder ocr_result1 = new StringBuilder(1024);
            StringBuilder ocr_result2 = new StringBuilder(1024);
            int res = dl_back_ocr(back_engine, image_path, ocr_result1, ocr_result2);
            if (res == 0)
            {
                Object jsonObject = JsonConvert.DeserializeObject(ocr_result1.ToString());
                textBox1.Text = JsonConvert.SerializeObject(jsonObject, Newtonsoft.Json.Formatting.Indented);
            }
            else
            {
                textBox1.Text = "识别失败";
            }
        }

        private void button4_Click(object sender, EventArgs e)
        {
            image_path = Application.StartupPath + "\\front_images\\2.jpg";
            pictureBox1.Image = new Bitmap(image_path);
        }

        private void button5_Click(object sender, EventArgs e)
        {
            image_path = Application.StartupPath + "\\back_images\\1.png";
            pictureBox1.Image = new Bitmap(image_path);
        }
    }
}

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C#调用源码下载

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