Are you a windows user ? If yes do you install tesseract from Mannheim ?
Tesseract für Windows | Tesseract_Dokumentation (ub-mannheim.github.io)
<https://ub-mannheim.github.io/Tesseract_Dokumentation/Tesseract_Doku_Windows.html>
Do you install a language for tesseract (example eng for english) ?
Can you install opencv and pytesseract python packages ?
If yes I can send you a sample to try.
Afterwards we will discuss your case in detail.
Rgs
René
Le mar. 16 juil. 2024 à 08:41, vizier87 <abdulhalim...@gmail.com> a écrit :
> Yeah my python is rusty but I do have experience with it. What do you
> suggest I begin with?
>
> On Monday 15 July 2024 at 20:29:38 UTC+8 renec...@gmail.com wrote:
>
>> If you have a python knowledge I can help.
>>
>> Le lun. 15 juil. 2024 à 05:39, vizier87 <abdulh...@gmail.com> a écrit :
>>
>>> Anyone?
>>>
>>> Thanks!
>>>
>>> On Sunday 14 July 2024 at 14:13:38 UTC+8 vizier87 wrote:
>>>
>>>> Hi everyone, I need some help with the flow of the Tesseract
>>>> pre-procesing.
>>>>
>>>> Here's a thermography image I'm attempting to detect:
>>>> [image: 6.png]
>>>>
>>>>
>>>> the code I'm using in .NET is the following:
>>>> Try
>>>>
>>>> ' Load the image using OpenCvSharp
>>>> Dim src As Mat = Cv2.ImRead(imagePath, ImreadModes.Grayscale)
>>>>
>>>>
>>>> ' Apply preprocessing steps
>>>> Dim processedImage As New Mat()
>>>> Cv2.Resize(src, processedImage, New Size(src.Width * size,
>>>> src.Height * size)) ' Resize to double the size
>>>>
>>>> Cv2.Threshold(processedImage, processedImage, threshold,
>>>> maxval, ThresholdTypes.Otsu) ' Apply thresholding
>>>>
>>>> ' Save the preprocessed image to a temporary file on the desktop
>>>> Dim desktopPath As String =
>>>> Environment.GetFolderPath(Environment.SpecialFolder.Desktop)
>>>> Dim tempImagePath As String =
>>>> System.IO.Path.Combine(desktopPath, "temp_image.png")
>>>> Cv2.ImWrite(tempImagePath, processedImage)
>>>>
>>>>
>>>>
>>>> Using engine As New TesseractEngine("C:\Program
>>>> Files\Tesseract-OCR\tessdata", "eng", EngineMode.Default)
>>>> ' Load the preprocessed image
>>>> Using img As Pix = Pix.LoadFromFile(tempImagePath)
>>>> ' Perform OCR
>>>> Using page As Page = engine.Process(img)
>>>> ' Get the recognized text
>>>> Dim recognizedText As String = page.GetText()
>>>> Return recognizedText
>>>> End Using
>>>> End Using
>>>> End Using
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> Catch ex As Exception
>>>> Return "Error performing OCR: " & ex.Message
>>>> End Try
>>>> End Function
>>>>
>>>>
>>>> admittedly, this was done with the help of a particular AI, but I've
>>>> been tuning it in all the places (size, threshold and maxval) and still got
>>>> nothing.
>>>>
>>>> Quite sure the flow is incorrect. Can anyone suggest any additional
>>>> pre-processing?
>>>>
>>>> Thanks.
>>>>
>>>>
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