If you have a python knowledge I can help.
Le lun. 15 juil. 2024 à 05:39, vizier87 <[email protected]> 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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