[tesseract-ocr] How to download the Tesseract trained data for Digital display numbers ( Seven Segments Data trained data )

[sabrina soraya]

Hi Arthur, first of all I want to say thanks for sharing the trained data
files to us. But I found that the "7" digit data I have is different like
your trained data. My "7" digit has one more segment in the left top. So I
was thinking to train by myself. But I got problem when I follow training
instruction from
here https://code.google.com/p/tesseract-ocr/wiki/TrainingTesseract3
especially in "Run Tesseract for Training" part. It did not give me *.tr
file. Can you give me a clear instruction how did you train your data?
Thank you in advance!

Sabrina.

Hi Nick,
I've just pushed the training data to my project page!
https://github.com/arturaugusto/display_ocr/tree/master/training_source
If someone come with improvements as you told, I will be accepting pull
requests.
Artur

And thats why I created a project that uses OpenCV so user can real time
control the erosion..
Sure, just need some time to compile all stuff in a more organized way

and document it.
I needed to apply some erosion to preprocess the font because of the
problem to recognize segmented fonts.
My trained data only works with erosion.
I will do that as soon as I can.
Hi Artur,

As many people ask about how to use tesseract to read 7 segments

display, I

decided to publish an open source sample project.

https://github.com/arturahttps://github.com/

arturaugusto/display_ocrugusto/display_ocr

Awesome, thanks so much for sharing! I was about to add it to the
3rdParty wiki page, but Zdenko beat me to it :)
Can you share the source files for your training somewhere too
(image and box files), so people can potentially improve on / add to
the training themselves?
Nick
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[Artur Augusto]

Hi Sabrina,

At this
<https://github.com/arturaugusto/display_ocr/tree/master/training_source>
link I included a python script that helped me training tesseract,
providing the .box and .tif image that contains the image with samples for
the font.

I can't remember the details, since I did this work 1 year ago and never
trained any other font.

Do you already have sample images to the font you want to train?

Post by sabrina soraya
Hi Arthur, first of all I want to say thanks for sharing the trained data
files to us. But I found that the "7" digit data I have is different like
your trained data. My "7" digit has one more segment in the left top. So I
was thinking to train by myself. But I got problem when I follow training
instruction from here
https://code.google.com/p/tesseract-ocr/wiki/TrainingTesseract3
especially in "Run Tesseract for Training" part. It did not give me *.tr
file. Can you give me a clear instruction how did you train your data?
Thank you in advance!
Sabrina.

Hi Nick,
I've just pushed the training data to my project page!
https://github.com/arturaugusto/display_ocr/tree/master/training_source
If someone come with improvements as you told, I will be accepting pull
requests.
Artur

And thats why I created a project that uses OpenCV so user can real time
control the erosion..
Sure, just need some time to compile all stuff in a more organized way

and document it.
I needed to apply some erosion to preprocess the font because of the
problem to recognize segmented fonts.
My trained data only works with erosion.
I will do that as soon as I can.
Hi Artur,

As many people ask about how to use tesseract to read 7 segments

display, I

decided to publish an open source sample project.

https://github.com/arturahttps://github.com/

arturaugusto/display_ocrugusto/display_ocr

Awesome, thanks so much for sharing! I was about to add it to the
3rdParty wiki page, but Zdenko beat me to it :)
Can you share the source files for your training somewhere too
(image and box files), so people can potentially improve on / add to
the training themselves?
Nick
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[sabrina soraya]

Hi Arthur,

Thank you for replying my email. Unfortunately I am not familiar with
phyton. My project is recognizing the digits from the device like I
attached for Android devices. Here is my sample image and the tif and box
file for my training. Do you have any idea to train this. Any suggestion
would help me. Thank you :)

Post by Artur Augusto
Hi Sabrina,
At this
<https://github.com/arturaugusto/display_ocr/tree/master/training_source>
link I included a python script that helped me training tesseract,
providing the .box and .tif image that contains the image with samples for
the font.
I can't remember the details, since I did this work 1 year ago and never
trained any other font.
Do you already have sample images to the font you want to train?

Post by sabrina soraya
Hi Arthur, first of all I want to say thanks for sharing the trained data
files to us. But I found that the "7" digit data I have is different like
your trained data. My "7" digit has one more segment in the left top. So I
was thinking to train by myself. But I got problem when I follow training
instruction from here
https://code.google.com/p/tesseract-ocr/wiki/TrainingTesseract3
especially in "Run Tesseract for Training" part. It did not give me *.tr
file. Can you give me a clear instruction how did you train your data?
Thank you in advance!
Sabrina.

Hi Nick,
I've just pushed the training data to my project page!
https://github.com/arturaugusto/display_ocr/tree/master/training_source
If someone come with improvements as you told, I will be accepting pull
requests.
Artur

And thats why I created a project that uses OpenCV so user can real
time control the erosion..
Sure, just need some time to compile all stuff in a more organized way

and document it.
I needed to apply some erosion to preprocess the font because of the
problem to recognize segmented fonts.
My trained data only works with erosion.
I will do that as soon as I can.
Hi Artur,

As many people ask about how to use tesseract to read 7 segments

display, I

decided to publish an open source sample project.

https://github.com/arturahttps://github.com/

arturaugusto/display_ocrugusto/display_ocr

Awesome, thanks so much for sharing! I was about to add it to the
3rdParty wiki page, but Zdenko beat me to it :)
Can you share the source files for your training somewhere too
(image and box files), so people can potentially improve on / add to
the training themselves?
Nick
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[Ashish Bachhav]

Hi Arthur and Sabrina,

Thanks for ur helpful post.

Sabrina did you get any solution for 7Segment Digital display OCR, i m also
searching for 7seg traindata file. i have one file but i have some accuracy
issue with it. i want more accuracy,
so if you have any train file for 7seg plz share with me. i want to read
multimeter reading from its display.
or give me clean steps to traindata from basics to End.

Thanks

Post by sabrina soraya
Hi Arthur,
Thank you for replying my email. Unfortunately I am not familiar with
phyton. My project is recognizing the digits from the device like I
attached for Android devices. Here is my sample image and the tif and box
file for my training. Do you have any idea to train this. Any suggestion
would help me. Thank you :)

Post by Artur Augusto
Hi Sabrina,
At this
<https://github.com/arturaugusto/display_ocr/tree/master/training_source>
link I included a python script that helped me training tesseract,
providing the .box and .tif image that contains the image with samples for
the font.
I can't remember the details, since I did this work 1 year ago and never
trained any other font.
Do you already have sample images to the font you want to train?

Post by sabrina soraya
Hi Arthur, first of all I want to say thanks for sharing the trained
data files to us. But I found that the "7" digit data I have is different
like your trained data. My "7" digit has one more segment in the left top.
So I was thinking to train by myself. But I got problem when I follow
training instruction from here
https://code.google.com/p/tesseract-ocr/wiki/TrainingTesseract3
especially in "Run Tesseract for Training" part. It did not give me *.tr
file. Can you give me a clear instruction how did you train your data?
Thank you in advance!
Sabrina.

Hi Nick,
I've just pushed the training data to my project page!
https://github.com/arturaugusto/display_ocr/tree/master/training_source
If someone come with improvements as you told, I will be accepting pull
requests.
Artur

And thats why I created a project that uses OpenCV so user can real
time control the erosion..
Sure, just need some time to compile all stuff in a more organized way

and document it.
I needed to apply some erosion to preprocess the font because of the
problem to recognize segmented fonts.
My trained data only works with erosion.
I will do that as soon as I can.
Hi Artur,

As many people ask about how to use tesseract to read 7 segments

display, I

decided to publish an open source sample project.

https://github.com/arturahttps://github.com/

arturaugusto/display_ocrugusto/display_ocr

Awesome, thanks so much for sharing! I was about to add it to the
3rdParty wiki page, but Zdenko beat me to it :)
Can you share the source files for your training somewhere too
(image and box files), so people can potentially improve on / add to
the training themselves?
Nick
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[k***@gmail.com]

Hello,
I am basically working in electronics field and new to C#.Currently I am
working on one project (Image processing in C#) where i am using C#,where
in one of the part i have to detect text or digits of 7 segment display
image for that on google i found Tesseract solution.

For experiment i have first try to convert normal text image in to text
file and it is working fine for some of the basic images but it is not
working with 7 segment display.so i came to know i required trained data
file for 7 segment.

For training 7 segment data i follow the steps which are shown in vidoe of
below

But the output.txt file showing in that video is not generating in my
case.Due to which after using trained 7 segment data file ,i am getting
garbage value in text file.So for checking that i am getting proper trained
file or not , i have follow the procedure which is shown on that video but
it is giving an error like outpt.txt file not found.Is this happened
because of missing otput.txt file or something else i am missing to do.I
have follow all the steps which are shown in that video for training 7
segment data.

Also i have installed jTessBoxEditorFX.jar, serak trainer & Tesseract-ocr
v3.02.So at the end i am just stuck in the point where i don't know where i
am going wrong,is my procedure is wrong or software installation is not
proper because after installing tesseract there is red cross mark against
tesseract.

Please somebody help me to figure it out.If possible please provide me 7
segment trained data file and also the exact steps to trained 7 segment
data as i have to trained some more files for various display icons and
some specific messages.Its very urgent as my project is stuck and i am
helpless because after trying so much solutions in image processing for 7
segment display detection like pixel count & image comparison in C#, i came
up on tesseract solution.
If you have any doubts on understanding my query please let me know.

Please do the needful.

[komal gawade]

Post by k***@gmail.com
Hello,
I am basically working in electronics field and new to C#.Currently I am
working on one project (Image processing in C#) where i am using C#,where
in one of the part i have to detect text or digits of 7 segment display
image for that on google i found Tesseract solution.
For experiment i have first try to convert normal text image in to text
file and it is working fine for some of the basic images but it is not
working with 7 segment display.so i came to know i required trained data
file for 7 segment.
For training 7 segment data i follow the steps which are shown in vidoe of
below http://youtu.be/i_1-hGsXxy8
But the output.txt file showing in that video is not generating in my
case.Due to which after using trained 7 segment data file ,i am getting
garbage value in text file.So for checking that i am getting proper trained
file or not , i have follow the procedure which is shown on that video but
it is giving an error like outpt.txt file not found.Is this happened
because of missing otput.txt file or something else i am missing to do.I
have follow all the steps which are shown in that video for training 7
segment data.
Also i have installed jTessBoxEditorFX.jar, serak trainer & Tesseract-ocr
v3.02.So at the end i am just stuck in the point where i don't know where
i am going wrong,is my procedure is wrong or software installation is not
proper because after installing tesseract there is red cross mark against
tesseract.
Please somebody help me to figure it out.If possible please provide me 7
segment trained data file and also the exact steps to trained 7 segment
data as i have to trained some more files for various display icons and
some specific messages.Its very urgent as my project is stuck and i am
helpless because after trying so much solutions in image processing for 7
segment display detection like pixel count & image comparison in C#, i came
up on tesseract solution.
If you have any doubts on understanding my query please let me know.
Please do the needful.

[ShreeDevi Kumar]

https://github.com/tesseract-ocr/tesseract/wiki/AddOns

has link to traineddata for digital seven fonts.

https://github.com/arturaugusto/display_ocr

You can download various digital seven fonts, create traineing data images
and train - all in Jtessboxeditor. Use 3.0x version

ShreeDevi
____________________________________________________________

Post by sabrina soraya

Post by k***@gmail.com
Hello,
I am basically working in electronics field and new to C#.Currently I am
working on one project (Image processing in C#) where i am using C#,where
in one of the part i have to detect text or digits of 7 segment display
image for that on google i found Tesseract solution.
For experiment i have first try to convert normal text image in to text
file and it is working fine for some of the basic images but it is not
working with 7 segment display.so i came to know i required trained data
file for 7 segment.
For training 7 segment data i follow the steps which are shown in vidoe
of below http://youtu.be/i_1-hGsXxy8
But the output.txt file showing in that video is not generating in my
case.Due to which after using trained 7 segment data file ,i am getting
garbage value in text file.So for checking that i am getting proper trained
file or not , i have follow the procedure which is shown on that video but
it is giving an error like outpt.txt file not found.Is this happened
because of missing otput.txt file or something else i am missing to do.I
have follow all the steps which are shown in that video for training 7
segment data.
Also i have installed jTessBoxEditorFX.jar, serak trainer & Tesseract-ocr
v3.02.So at the end i am just stuck in the point where i don't know
where i am going wrong,is my procedure is wrong or software installation is
not proper because after installing tesseract there is red cross mark
against tesseract.
Please somebody help me to figure it out.If possible please provide me 7
segment trained data file and also the exact steps to trained 7 segment
data as i have to trained some more files for various display icons and
some specific messages.Its very urgent as my project is stuck and i am
helpless because after trying so much solutions in image processing for 7
segment display detection like pixel count & image comparison in C#, i came
up on tesseract solution.
If you have any doubts on understanding my query please let me know.
Please do the needful.

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[komal gawade]

Sorry friend but i am not getting it............................
I used this link
https://github.com/arturaugusto/display_ocr/tree/master/letsgodigital, for
trined data but still i am getting garbage values in text file.
Also i dont know how to get TOF & TTf files.

Now in my pc Tesseract V3.02 is installed.I am
using jTessBoxEditorFX-2.0-Beta and Serak tesseract Trainer V0.3 for
taining & segment data.

I have attached some images which i want to extract in text file.

Below is the my program:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

using AForge;
using AForge.Video;
using AForge.Video.DirectShow;
using AForge.Imaging.Filters;


using tessnet2;

using System.IO;

/****************************By using Garbage in text file and compairing
it (final prog)***********************************************/

namespace Display_Detection
{
public partial class FormDisplayDetection : Form
{
public FormDisplayDetection()
{
InitializeComponent();
}


private FilterInfoCollection CaptureDevice;
private VideoCaptureDevice CaptureImage;


private void FormDisplayDetection_Load(object sender, EventArgs e)
{
// enumerate video devices
CaptureDevice = new
FilterInfoCollection(FilterCategory.VideoInputDevice);

foreach (FilterInfo VideoCaptureDevice in CaptureDevice)
{
comboBox1.Items.Add(VideoCaptureDevice.Name);

}
comboBox1.SelectedIndex = 0;
}

private void button1_Click(object sender, EventArgs e)
{
// create video source
// CaptureImage = new
VideoCaptureDevice(CaptureDevice[0].MonikerString);

CaptureImage = new
VideoCaptureDevice(CaptureDevice[comboBox1.SelectedIndex].MonikerString);

// set NewFrame event handler
CaptureImage.NewFrame += new
NewFrameEventHandler(video_NewFrame);

// start the video source
CaptureImage.Start();
}

private void video_NewFrame(object sender, NewFrameEventArgs
eventArgs)
{
// get new frame
pictureBox1.Image = (Bitmap)eventArgs.Frame.Clone();
// process the frame
}

private void button2_Click(object sender, EventArgs e)
{
Bitmap varBmp = new Bitmap(pictureBox1.Image);
varBmp = ResizeBitmap(varBmp, 320, 240);
pictureBox2.Image = (Bitmap)varBmp.Clone();
}

private static Bitmap ResizeBitmap(Bitmap sourceBMP, int width, int
height)
{
Bitmap result = new Bitmap(width, height);
using (Graphics g = Graphics.FromImage(result))
g.DrawImage(sourceBMP, 0, 0, width, height);
return result;
}

private void button4_Click(object sender, EventArgs e)
{
// signal to stop
CaptureImage.Stop();
// ...
}

private void button3_Click(object sender, EventArgs e)
{
if (pictureBox2.Image != null)
{
//Save First
Bitmap varBmp = new Bitmap(pictureBox2.Image);
// Bitmap newBitmap = new Bitmap(varBmp);

//string Image = "ImageName_" + DateTime.Now + ".jpg";

// string Image = "ImageCaptured_" +
DateTime.Now.ToString("ddMMyyyy HHmmss") + ".jpg";

//varBmp = ResizeBitmap(varBmp, 320, 240);
// varBmp = ResizeBitmap(varBmp, 640, 480);

string Image = "ImageCaptured_" +
DateTime.Now.ToString("d-M-yyyy hh.mm.ss tt") + ".bmp";

varBmp.Save(@"D:\Komal\Automation
Project\Programs\task1\Display Text Detection\Save_Images\" + Image);


// varBmp.Save(@"D:\Komal\Automation
Project\Programs\task1\Capture Image\Save_Captured Image\filename.jpg",
ImageFormat.Jpeg);

//Now Dispose to free the memory
varBmp.Dispose();
varBmp = null;

}

else
{ MessageBox.Show("null exception"); }
}

private void button5_Click(object sender, EventArgs e)
{
CaptureImage.Stop();
Application.Exit();
}

private void button6_Click(object sender, EventArgs e)
{

var image = new Bitmap(pictureBox2.Image);

File.WriteAllText(@"D:\Komal\Automation
Project\Programs\task1\Display Detection\image1.txt", String.Empty);

// now add the following C# line in the code page

var ocr = new Tesseract();

ocr.Init(@"D:\Komal\Automation Project\Programs\task1\Display
Text Detection\packages\tessdata", "eng", false);

var result = ocr.DoOCR(image, Rectangle.Empty);
foreach (tessnet2.Word word in result)
{

File.AppendAllText(@"D:\Komal\Automation
Project\Programs\task1\Display Detection\image1.txt", word.Text);
}

/* byte[] file1 = File.ReadAllBytes(@"D:\Komal\Automation
Project\Programs\task1\Display Detection\image1.txt");
byte[] file2 = File.ReadAllBytes(@"D:\Komal\Automation
Project\Programs\task1\Display Detection\sample.txt");
if (file1.Length == file2.Length)
{
MessageBox.Show("Both files are same!!!!!!!!!!!!");
}
else
{ MessageBox.Show("Both files are not same!!!!!!!!!!!!"); }*/

}



private void button7_Click(object sender, EventArgs e)
{
DialogResult result = openFileDialog1.ShowDialog();
if (result == DialogResult.OK)
{
Image image = Image.FromFile(openFileDialog1.FileName);
pictureBox1.Image = image;
}

}

private void button8_Click(object sender, EventArgs e)
{
DialogResult result = openFileDialog1.ShowDialog();
if (result == DialogResult.OK)
{
Image image = Image.FromFile(openFileDialog1.FileName);
pictureBox2.Image = image;
}
}
}
}