Hi Zdenko,
May I know how do you cut region and pre-processed it?
Much appreciate if you could guide me on this.
Thanks,
Lee
On Saturday, July 8, 2023 at 11:54:17 PM UTC+8 zdenop wrote:
> I am not sure what you mean by "I have tried setting the Region of
> Interest (ROI) ", but when I cut region and pre-processed it as described
> in the documentation I got the correct results:
>
> tesseract frame_1-ROI1_preprocessed.png - --psm 7
> GOH SCE YUAN
>
> tesseract frame_1-ROI2_preprocessed.png - --psm 4
> 0197782267
> 073351668
> 0197732267
>
> Zdenko
>
>
> st 28. 6. 2023 o 4:26 Lee Kar Yee <leeka...@gmail.com> napísal(a):
>
>> Hi,
>>
>> Apologies. Kindly refer to the following.
>>
>> With the following code, I managed to draw rectangle on the region that
>> are processed by Tesseract OCR.
>>
>> pytesseract.pytesseract.tesseract_cmd = r"C:\Program
>> Files\Tesseract-OCR\tesseract.exe"
>>
>> video = r"C:\Users\User\Downloads\FATHER\test.mp4"
>> cap = cv2.VideoCapture(video)
>> frame_count = 0
>>
>> while cap.isOpened() and frame_count < 2:
>> ret, frame = cap.read()
>>
>> if not ret:
>> break
>>
>> # Perform OCR on the entire frame without dictionaries
>> text = pytesseract.image_to_string(frame, config='--psm 1 -l eng
>> --oem 1')
>>
>> print(text)
>>
>> # Get the bounding box coordinates of the detected text regions
>> boxes = pytesseract.image_to_boxes(frame, config='--psm 1 -l eng
>> --oem 1')
>>
>> # Draw bounding box rectangles on the frame
>> for box in boxes.splitlines():
>> _, x, y, w, h, _ = box.split(' ')
>> x, y, w, h = int(x), int(y), int(w), int(h)
>> # Draw rectangles on the frame
>> cv2.rectangle(frame, (x, y), (w, h), (0, 0, 255), 1)
>>
>> # Save the frame as an image
>> cv2.imwrite(f"frame_{frame_count}.jpg", frame)
>>
>> frame_count += 1
>>
>> cap.release()
>> cv2.destroyAllWindows()
>>
>> And the results are as below.
>>
>> ntes F-Farm Annlicatinns Service Reiest 9 Oar
>>
>> individual Name IDK
>>
>> GOH SCE YUAN 600
>>
>>
>> nten F-Farm Annlicatinns Service Request «9 [or
>>
>> Individual Name IDK
>>
>> GOH SCE YUAN 600
>>
>> Kindly refer to the objective.jpg for what I actually intend to capture.
>>
>> Thanks,
>>
>> Lee
>>
>> On Tuesday, June 27, 2023 at 6:25:50 PM UTC+8 zdenop wrote:
>>
>>> without an example image nobody can help you.
>>>
>>> Zdenko
>>>
>>>
>>> ut 27. 6. 2023 o 12:01 Lee Kar Yee <leeka...@gmail.com> napísal(a):
>>>
>>>> Hi all,
>>>>
>>>> I am new to Tesseract OCR. I am trying to achieve extracting alphabets
>>>> and numbers from images.
>>>> These images are being converted from a mp4 video into frames as JPG.
>>>>
>>>> While using Page segmentation method 3, it is working wonders on
>>>> extracting alphabets, but it failed to extract numbers.
>>>>
>>>> I have tried setting the Region of Interest (ROI) but yet it still
>>>> failed.
>>>>
>>>> Any thoughts or direction that can point me to so that I can improve it?
>>>>
>>>> Thanks,
>>>>
>>>> Lee
>>>>
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