Only First Line of First Paragraph Recognized in Each Page

[mcastellanos]

Hello,

We are implementing tesseract with your .net wrapper using the nugget package. The problem we are having is that no matter how many pages or paragraph a tiff document has, it always iterates just the first line of the page, the other lines and paragraphs are ignored. We used a bitmap, or loading the file using the Pix.LoadFromFile and get the same results. We ran out of ideas already.

Can you please advise if there is something we are missing, we are using the same sample code.

Thanks in advanced.

[charlesw]

How are you getting the results? For instance are you using GetText or a
result iterator?
On 11/09/2015 4:51 am, "mcastellanos" notifications@github.com wrote:

Hello,

We are implementing tesseract with your .net wrapper using the nugget
package. The problem we are having is that no matter how many pages or
paragraph a tiff document has, it always iterates just the first line of
the page, the other lines and paragraphs are ignored. We used a bitmap, or
loading the file using the Pix.LoadFromFile and get the same results. We
ran out of ideas already.

Can you please advise if there is something we are missing, we are using
the same sample code.

Thanks in advanced.

—
Reply to this email directly or view it on GitHub
#208.

[mcastellanos]

Yes, exactly the way it is in the sample project. Of course we will customize it once it is working.

I tried different documents tiff with 300dpi black and white. It always read the first line (words) of each page perfectly and then finishes.

Thanks a lot for your response.

Sent from my Windows Phone

---

From: Charles Weldmailto:notifications@github.com
Sent: ‎9/‎10/‎2015 6:15 PM
To: charlesw/tesseractmailto:tesseract@noreply.github.com
Cc: mcastellanosmailto:mcastellanosn@hotmail.com
Subject: Re: [tesseract] Only First Line of First Paragraph Recognized in Each Page (#208)

How are you getting the results? For instance are you using GetText or a
result iterator?
On 11/09/2015 4:51 am, "mcastellanos" notifications@github.com wrote:

Hello,

We are implementing tesseract with your .net wrapper using the nugget
package. The problem we are having is that no matter how many pages or
paragraph a tiff document has, it always iterates just the first line of
the page, the other lines and paragraphs are ignored. We used a bitmap, or
loading the file using the Pix.LoadFromFile and get the same results. We
ran out of ideas already.

Can you please advise if there is something we are missing, we are using
the same sample code.

Thanks in advanced.

—
Reply to this email directly or view it on GitHub
#208.

---

Reply to this email directly or view it on GitHub:
#208 (comment)

[mcastellanos]

Result iterator.

Thanks

Sent from my Windows Phone

---

From: Charles Weldmailto:notifications@github.com
Sent: ‎9/‎10/‎2015 6:15 PM
To: charlesw/tesseractmailto:tesseract@noreply.github.com
Cc: mcastellanosmailto:mcastellanosn@hotmail.com
Subject: Re: [tesseract] Only First Line of First Paragraph Recognized in Each Page (#208)

How are you getting the results? For instance are you using GetText or a
result iterator?
On 11/09/2015 4:51 am, "mcastellanos" notifications@github.com wrote:

Hello,

We are implementing tesseract with your .net wrapper using the nugget
package. The problem we are having is that no matter how many pages or
paragraph a tiff document has, it always iterates just the first line of
the page, the other lines and paragraphs are ignored. We used a bitmap, or
loading the file using the Pix.LoadFromFile and get the same results. We
ran out of ideas already.

Can you please advise if there is something we are missing, we are using
the same sample code.

Thanks in advanced.

—
Reply to this email directly or view it on GitHub
#208.

---

Reply to this email directly or view it on GitHub:
#208 (comment)

[mcastellanos]

Hi Charles,

I am sending/attaching our test code.

Thanks, gain

Marcos Castellanos Sr

Date: Thu, 10 Sep 2015 15:15:38 -0700
From: notifications@github.com
To: tesseract@noreply.github.com
CC: mcastellanosn@hotmail.com
Subject: Re: [tesseract] Only First Line of First Paragraph Recognized in Each Page (#208)

How are you getting the results? For instance are you using GetText or a

result iterator?

On 11/09/2015 4:51 am, "mcastellanos" notifications@github.com wrote:

Hello,

We are implementing tesseract with your .net wrapper using the nugget

package. The problem we are having is that no matter how many pages or

paragraph a tiff document has, it always iterates just the first line of

the page, the other lines and paragraphs are ignored. We used a bitmap, or

loading the file using the Pix.LoadFromFile and get the same results. We

ran out of ideas already.

Can you please advise if there is something we are missing, we are using

the same sample code.

Thanks in advanced.

—

Reply to this email directly or view it on GitHub

#208.

—
Reply to this email directly or view it on GitHub.

private static void DoOcr(Tesseract.TesseractEngine engine, int frameIndex, Bitmap bitmap, StreamWriter resultStream) {
try
{

            using (var img = Tesseract.Pix.LoadFromFile(@"C:\doc2.tif"))
            {

                var lineIndex = 1;
                using (var page = engine.Process(img)) //engine.Process(bitmap))
                {
                    using (var iter = page.GetIterator())
                    {

                        var i = 1;

                        iter.Begin();
                        do
                        {
                            if (true) //i % 2 == 0)
                            {
                                Console.WriteLine("Line {0}", i);
                                //using (logger.Begin("Line {0}", i))
                                //{
                                do
                                {
                                    //using (logger.Begin("Word Iteration"))
                                    //{
                                    if (iter.IsAtBeginningOf(Tesseract.PageIteratorLevel.Block))
                                    {
                                        Console.WriteLine("New block");
                                    }
                                    if (iter.IsAtBeginningOf(Tesseract.PageIteratorLevel.Para))
                                    {
                                        Console.WriteLine("New paragraph");
                                    }
                                    if (iter.IsAtBeginningOf(Tesseract.PageIteratorLevel.TextLine))
                                    {
                                        Console.WriteLine("New line");
                                    }
                                    Console.WriteLine("word: " + iter.GetText(Tesseract.PageIteratorLevel.Word));
                                    //}
                                } while (iter.Next(Tesseract.PageIteratorLevel.TextLine, Tesseract.PageIteratorLevel.Word));
                                //}
                            }
                            i++;
                        } while (iter.Next(Tesseract.PageIteratorLevel.Para, Tesseract.PageIteratorLevel.TextLine));

                    }
                }
            }
        }
        catch (Exception ex)
        {
            Console.WriteLine(string.Format("Error processing frame {0}. {1}.", frameIndex, ex.Message));
        }

}

[charlesw]

Okay, from memory the sample program doesn't quite do it correctly as it
doesn't loop through the blocks, the top most level, which would probably
explain why it's not working for you.

On Fri, Sep 11, 2015 at 8:57 AM, mcastellanos notifications@github.com
wrote:

Yes, exactly the way it is in the sample project. Of course we will
customize it once it is working.

I tried different documents tiff with 300dpi black and white. It always
read the first line (words) of each page perfectly and then finishes.

Thanks a lot for your response.

Sent from my Windows Phone

---

From: Charles Weldmailto:notifications@github.com
Sent: ‎9/‎10/‎2015 6:15 PM
To: charlesw/tesseractmailto:tesseract@noreply.github.com
Cc: mcastellanosmailto:mcastellanosn@hotmail.com
Subject: Re: [tesseract] Only First Line of First Paragraph Recognized in
Each Page (#208)

How are you getting the results? For instance are you using GetText or a
result iterator?
On 11/09/2015 4:51 am, "mcastellanos" notifications@github.com wrote:

Hello,

We are implementing tesseract with your .net wrapper using the nugget
package. The problem we are having is that no matter how many pages or
paragraph a tiff document has, it always iterates just the first line of
the page, the other lines and paragraphs are ignored. We used a bitmap,
or
loading the file using the Pix.LoadFromFile and get the same results. We
ran out of ideas already.

Can you please advise if there is something we are missing, we are using
the same sample code.

Thanks in advanced.

—
Reply to this email directly or view it on GitHub
#208.

---

Reply to this email directly or view it on GitHub:
#208 (comment)

—
Reply to this email directly or view it on GitHub
#208 (comment).

[charlesw]

Here's a more complete sample

using (var engine = new TesseractEngine(@"./tessdata", "eng", EngineMode.Default)) {
    engine.DefaultPageSegMode = PageSegMode.AutoOsd;

    using (var img = Pix.LoadFromFile(testImagePath)) {
        using (var page = engine.Process(img)) {
            int symbolCount = 0;
            using (var iter = page.GetIterator()) {
                iter.Begin();
                do {
                    do {
                        do {
                            do {
                                do {
                                    if(iter.IsAtBeginningOf(PageIteratorLevel.Block)) {
                                        Console.WriteLine("START BLOCK");
                                    }

                                    Console.Write(iter.GetText(PageIteratorLevel.Symbol));

                                    if (iter.IsAtFinalOf(PageIteratorLevel.Word, PageIteratorLevel.Symbol)) {
                                        Console.Write(" ");

                                    }
                                    symbolCount++;
                                } while (iter.Next(PageIteratorLevel.Word, PageIteratorLevel.Symbol));
                            } while (iter.Next(PageIteratorLevel.TextLine, PageIteratorLevel.Word));
                        } while (iter.Next(PageIteratorLevel.Para, PageIteratorLevel.TextLine));


                        if (iter.IsAtFinalOf(PageIteratorLevel.Block, PageIteratorLevel.Para)) {
                            Console.WriteLine("\nEND BLOCK");
                        }
                    } while (iter.Next(PageIteratorLevel.Block, PageIteratorLevel.Para));
                } while (iter.Next(PageIteratorLevel.Block));
            }

            Console.WriteLine("Confidence: {0}", page.GetMeanConfidence());
            Console.WriteLine("Symbol Count: {0}", symbolCount);
        }
    }
}

[mcastellanos]

Hi Charles,

It worked. We already implemented it in our application with all the details we wanted including the position of each keyword, etc.

Thanks for your help,

Marcos Castellanos Sr

Date: Fri, 11 Sep 2015 03:44:57 -0700
From: notifications@github.com
To: tesseract@noreply.github.com
CC: mcastellanosn@hotmail.com
Subject: Re: [tesseract] Only First Line of First Paragraph Recognized in Each Page (#208)

Here's a more complete sample

using (var engine = new TesseractEngine(@"./tessdata", "eng", EngineMode.Default)) {
engine.DefaultPageSegMode = PageSegMode.AutoOsd;

using (var img = Pix.LoadFromFile(testImagePath)) {
    using (var page = engine.Process(img)) {
        int symbolCount = 0;
        using (var iter = page.GetIterator()) {
            iter.Begin();
            do {
                do {
                    do {
                        do {
                            do {
                                if(iter.IsAtBeginningOf(PageIteratorLevel.Block)) {
                                    Console.WriteLine("START BLOCK");
                                }

                                Console.Write(iter.GetText(PageIteratorLevel.Symbol));

                                if (iter.IsAtFinalOf(PageIteratorLevel.Word, PageIteratorLevel.Symbol)) {
                                    Console.Write(" ");

                                }
                                symbolCount++;
                            } while (iter.Next(PageIteratorLevel.Word, PageIteratorLevel.Symbol));
                        } while (iter.Next(PageIteratorLevel.TextLine, PageIteratorLevel.Word));
                    } while (iter.Next(PageIteratorLevel.Para, PageIteratorLevel.TextLine));


                    if (iter.IsAtFinalOf(PageIteratorLevel.Block, PageIteratorLevel.Para)) {
                        Console.WriteLine("\nEND BLOCK");
                    }
                } while (iter.Next(PageIteratorLevel.Block, PageIteratorLevel.Para));
            } while (iter.Next(PageIteratorLevel.Block));
        }

        Console.WriteLine("Confidence: {0}", page.GetMeanConfidence());
        Console.WriteLine("Symbol Count: {0}", symbolCount);
    }
}

}

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