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Image to text conversion

Image to text conversion

sakshi tiwari

9y4.1kLearn iOS Programming

I am trying to convert image to text using emguCV but it is showing me error tess.reconize instance not set for reference. My code is

using Emgu.CV;

using Emgu.Util;

using Emgu.CV.CvEnum;

using Emgu.CV.OCR;

using Emgu.CV.Structure;

using Emgu.CV.UI;

using Emgu.CV.Util;

namespace jo

{

public partial class Form1 : Form

{

public Form1()

{

InitializeComponent();

}

Tesseract tess;

Image img;

private void button1_Click(object sender, EventArgs e)

{

DialogResult dr = openFileDialog1.ShowDialog();

if (dr == DialogResult.OK)

{

textBox1.Text = openFileDialog1.FileName;

}

img = Image.FromFile(openFileDialog1.FileName);

pictureBox1.Image = img; pro(); textBox2.Text = tess.GetText();

}

public void load()

{

try

{

tess = new Tesseract("tessdata", "eng", Tesseract.OcrEngineMode.OEM_DEFAULT);

}

catch (Exception ex)

{

MessageBox.Show(ex.GetBaseException().ToString());

} }

private void Form1_Load(object sender, EventArgs e)

{ load(); }

public void pro() { tess.Recognize(new Image(textBox1.Text)); } } }?

2 Replies

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Clara Ashford1y ago
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Maen Badwan9y ago
I checked your code and noticed that it doesn’t contain any call for the tess.reconize(…) method. However, you can check the documentation of this method to make sure that you are creating the instance correctly and passing the correct parameters:

http://www.emgu.com/wiki/files/2.4.0/document/html/d30f9aa6-5f5a-37b1-140e-f940c5271ee4.htm

http://www.emgu.com/wiki/files/2.4.0/document/html/279f760a-fc66-902d-e291-2ee897610e77.htm

Note that you can still try using a different programming toolkit that supports OCR (optical character recognition) and image loading features such as LEADTOOLS SDK. You can find useful ready sample projects here:

https://www.leadtools.com/support/forum/posts/m40423-HOWTO--Minimum-Arabic-OCR-C--Console-Application#post40423

Disclaimer: I am an employee of this library.