julia test (I)

 REF: https://julialang.org/downloads/

julia-1.6.3-win64.exe

Add julia path

Hello world

1) interactive hello world (println)

2) Create ex1.jl

copy con ex1.jl

println("hello world.")

ctrl+z

julia ex1.jl

License_Plate_Recognition_in_CSharp

 REF:

1)https://www.emgu.com/wiki/index.php/License_Plate_Recognition_in_CSharp

2)https://github.com/fasetto/license-plate-recognition/blob/master/src/LPlateRecognition.UI/ViewModels/MainViewModel.cs

Windows 10 x64 @ ASUS X450

Visual Studio 2019

建置程序

1) New FormApp

2) Nuget 

emgu.cv 3.4.3.3016

Tesseract.Net SDK 1.18.342

3) Add class (Ref:1)

using Emgu.CV;

using Emgu.CV.CvEnum;

using Emgu.CV.OCR;

using Emgu.CV.Structure;

using Emgu.CV.Util;

using Emgu.Util;

using Patagames.Ocr;

using Patagames.Ocr.Enums;

//---###

using (UMat tmp = filteredPlate.Clone())

       {

          string plainText;

          using (var api = OcrApi.Create())

          {

            api.Init(Languages.English);

            api.SetVariable("tessedit_char_whitelist", "ABCDEFGHIJKLMNOPQRSTUVWXYZ-1234567890");

            plainText = api.GetTextFromImage(tmp.Bitmap);

           }

           //_ocr.Recognize(tmp);

          //words = _ocr.GetCharacters();

                                //if (words.Length == 0) continue;

                                if (plainText.Length == 0) continue;

                                //for (int i = 0; i < words.Length; i++)

                                for (int i = 0; i < plainText.Length; i++)

                                {

                                    strBuilder.Append(plainText[i]);

                                }

                            }

//---###

4) Form1.cs

public Form1()

        {

            InitializeComponent();

            imageBox1.Image = new Image<Bgr, byte>(@"C:\Users\csjou\Downloads\license-plate2.jpg");

        }

        private void button1_Click(object sender, EventArgs e)

        {

            LicensePlateDetector LPD = new LicensePlateDetector("test");

            Mat m = new Image<Bgr, byte>(imageBox1.Image.Bitmap).Mat;

            List<IInputOutputArray> licensePlateImagesList = new List<IInputOutputArray>();

            List<IInputOutputArray> filteredLicensePlateImagesList = new List<IInputOutputArray>();

            List<RotatedRect> licenseBoxList = new List<RotatedRect>();

            List<string> words = LPD.DetectLicensePlate(

            m,

            licensePlateImagesList,

            filteredLicensePlateImagesList,

            licenseBoxList

            );

            this.Text = "";

            for (int i = 0; i < words.Count; i++)

                this.Text += words[i];

        }

emgu 轉換

 REF: http://ferris2014.blogspot.com/2016/06/opencv-emgu-mat-to-image-image-to-mat.html

Mat to image, image to Mat, image to imagebox, imagebox to image, Mat to imagebox, imagebox to Mat

1. Mat to image

_img = _mat.ToImage<bgr, Byte>();

2. image to Mat

_mat = _img.Mat;

3. image to imagebox

imagebox1.Image=_img;

4. imagebox to image

_img = new Image<bgr, byte>(imageBox1.Image.Bitmap)

5. Mat to imagebox

imagebox1.Image=_mat;

6. imagebox to Mat

(Step4 + Step2)

_img= new Image<bgr, byte>(imageBox1.Image.Bitmap).Mat;

CMake 入門/簡單的範例 (Windows 10)

REF: https://zh.m.wikibooks.org/zh-tw/CMake 入門/簡單的範例

1. Windows 10 x64 @ ASUS X450J

2. Prepare files 

3. cd D:\Course1092\AI1092\cmakes\ex2/src

4. cmake --build .

5. cd Debug

6. ./ex2.exe

Intel OpenVINO Installation & run demo ( could not find any instance of Visual Studio.)

 REF:https://medium.com/ching-i/intel-openvino%E4%BB%8B%E7%B4%B9%E8%88%87%E5%AE%89%E8%A3%9D%E6%95%99%E5%AD%B8-15b07473d998

1. Register Intel Account

2. Download full package

3. Install

4. Upgrade cmake

4-1 Download cmake.msi

https://cmake.org/download/

4-2 Install cmake

cmake-3.19.3-win64-x64.msi

5. Reinstall

6. Done

7. Set vars

C:\Program Files (x86)\Intel\openvino_2021.2.185\bin

8. Install Ironpython

https://github.com/IronLanguages/ironpython2/releases/

9. Add Python path

10. setupvars.bat

11 Add vars

npm install --global --production windows-build-tools --vs2015

--------- Run Demo

Get Started with OpenVINO™ Toolkit on Windows* - OpenVINO™ Toolkit

Powershell

./demo_security_barrier_camera -d CPU
cd "C:\Program Files (x86)\Intel\openvino_2021\deployment_tools\demo"











 

DataGrid and OleDb Connection Test

1. Windows 10 x64 @ ASUS X450J

2. Visual Studio 2019

3. Install Microsoft Access Database Engine 2010 可轉散發套件

https://www.microsoft.com/zh-tw/download/details.aspx?id=13255

4. Northwind.xls (Customer Sheet)

Ex1 Console (.NET Framework)

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

namespace oledbEx1

{

    using System.Data;

    using System.Data.OleDb;

    class Program

    {

        static void Main(string[] args)

        {

            DataTable DT = OleDbGetTable("SELECT * FROM [Customers$]", "Northwind.xlsx");

            Console.WriteLine(DT.Rows.Count);

            Console.ReadLine();

        }

        static public DataTable OleDbGetTable(string SQL, string path1)

        {

            DataSet DS = new DataSet();

            OleDbConnection conn = new OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + path1 + ";Extended Properties='Excel 12.0 Xml; HDR = YES';");

            conn.Open();

            OleDbDataAdapter apt = new OleDbDataAdapter(SQL, conn);

            apt.Fill(DS);

            conn.Close();

            return DS.Tables[0];

        }

    }

}

 Ex2 Form (.NET Framework)

namespace FormEx1

{

    using System.Data.OleDb;

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

            DataGridView dataGridView1 = new DataGridView();

            this.Controls.Add(dataGridView1);

            dataGridView1.Dock = DockStyle.Fill;

            DataTable DT = OleDbGetTable("SELECT * FROM [Customers$]", "Northwind.xlsx");

            dataGridView1.DataSource = DT.DefaultView;

        }

        public DataTable OleDbGetTable(string SQL, string path1)

        { ...}

  }

}

Ex3 Form (.NET Core 3.x)

nuget Add System.Data.OleD

Ex4 WPF (.NET Framework)

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Data;

using System.Windows.Documents;

using System.Windows.Input;

using System.Windows.Media;

using System.Windows.Media.Imaging;

using System.Windows.Navigation;

using System.Windows.Shapes;

namespace WPFEx1

{

    using System.Data.OleDb;

    using System.Data;

    /// <summary>

    /// MainWindow.xaml 的互動邏輯

    /// </summary>

    public partial class MainWindow : Window

    {

        public MainWindow()

        {

            InitializeComponent();

            DataGrid dataGridView1 = new DataGrid();

            Grid G1 = new Grid();

            this.Content = G1;

            G1.Children.Add(dataGridView1);

            DataTable DT = OleDbGetTable("SELECT * FROM [Customers$];", "Northwind.xlsx");

            dataGridView1.ItemsSource = DT.DefaultView;

        }

        public DataTable OleDbGetTable(string SQL, string path1)

        {... }

   

    }

}

Ex5 WPF (.NET Core 3.x)

nuget Add System.Data.OleD

Ex6 Web (.NET Framework)

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

namespace WebApp1

{

    using System.Data;

    using System.Data.OleDb;

    public partial class WebForm1 : System.Web.UI.Page

    {

        protected void Page_Load(object sender, EventArgs e)

        {

            DataGrid dataGridView1 = new DataGrid();

            form1.Controls.Add(dataGridView1);

            DataTable DT = OleDbGetTable("SELECT * FROM [Customers$];", Server.MapPath("Northwind.xlsx"));

            dataGridView1.DataSource = DT.DefaultView;

            dataGridView1.DataBind();

       }

        public DataTable OleDbGetTable(string SQL, string path1)

        { ...   }

    }

}

Kinect VideoCAM

1. Ref add Microsoft.Kinect 1.8

2.  xaml

<Window x:Class="WPFCam1.MainWindow"

        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"

        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"

        xmlns:local="clr-namespace:WPFCam1"

        mc:Ignorable="d"

        Title="MainWindow" Height="450" Width="800">

    <Grid>

        <Rectangle Width="320" Height="240">

            <Rectangle.Fill>

                <ImageBrush x:Name="image1">

                   

                </ImageBrush>

            </Rectangle.Fill>

        </Rectangle>

    </Grid>

</Window>

3. C#

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Data;

using System.Windows.Documents;

using System.Windows.Input;

using System.Windows.Media;

using System.Windows.Media.Imaging;

using System.Windows.Navigation;

using System.Windows.Shapes;

namespace WPFCam1

{

    using Microsoft.Kinect;

    /// <summary>

    /// MainWindow.xaml 的互動邏輯

    /// </summary>

    public partial class MainWindow : Window

    {

        private KinectSensor sensor;

        private WriteableBitmap colorBitmap;

        private byte[] colorPixels;

        public MainWindow()

        {

            InitializeComponent();

            sensor = KinectSensor.KinectSensors[0];

            this.sensor.ColorStream.Enable(ColorImageFormat.RgbResolution640x480Fps30);

            // Allocate space to put the pixels we'll receive

            this.colorPixels = new byte[this.sensor.ColorStream.FramePixelDataLength];

            // This is the bitmap we'll display on-screen

            this.colorBitmap = new WriteableBitmap(this.sensor.ColorStream.FrameWidth, this.sensor.ColorStream.FrameHeight, 96.0, 96.0, PixelFormats.Bgr32, null);

            // Set the image we display to point to the bitmap where we'll put the image data

            this.image1.ImageSource = this.colorBitmap;

            this.sensor.ColorFrameReady += this.SensorColorFrameReady;

            // Start the sensor!

            this.sensor.Start();

        }

        private void SensorColorFrameReady(object sender, ColorImageFrameReadyEventArgs e)

        {

            using (ColorImageFrame colorFrame = e.OpenColorImageFrame())

            {

                if (colorFrame != null)

                {

                    // Copy the pixel data from the image to a temporary array

                    colorFrame.CopyPixelDataTo(this.colorPixels);

                    // Write the pixel data into our bitmap

                    this.colorBitmap.WritePixels(

                        new Int32Rect(0, 0, this.colorBitmap.PixelWidth, this.colorBitmap.PixelHeight),

                        this.colorPixels,

                        this.colorBitmap.PixelWidth * sizeof(int),

                        0);

                }

            }

        }

    }

}