https://imagetotext.info/
If i use a website like this one it can extract the text perfectly and they
also use tesseract.
There has to be some preproccesing/setting that makes tesseract detect the
text perfectly.
nabil-ak schrieb am Montag, 31. Oktober 2022 um 13:55:56 UTC+1:
> *I also tried Rotation but its still not working.*
>
> *These are the preprocessing steps that i used:*
>
> import cv2
> import pytesseract
> import numpy as np
> from scipy import ndimage
>
> img = cv2.imread('voucher.png')
>
> img = cv2.bitwise_not(img)
>
> img = cv2.resize(img, None, fx=1.2, fy=1.2, interpolation=cv2.INTER_CUBIC)
>
> img = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
>
> kernel = np.ones((1, 1), np.uint8)
> img = cv2.dilate(img, kernel, iterations=1)
> img = cv2.erode(img, kernel, iterations=1)
>
> img = ndimage.rotate(img, -20)
>
> cv2.imwrite("changed.png",img)
>
> pytesseract.pytesseract.tesseract_cmd = r'C:\Program
> Files\Tesseract-OCR\tesseract.exe'
> print(pytesseract.image_to_string(img))
>
>
> abey...@gmail.com schrieb am Montag, 31. Oktober 2022 um 10:46:59 UTC+1:
>
>> Did you try all the preprocessing steps? Rotation / Deskewing ? I think
>> Tesseract finds it difficult to identify skewed images.
>>
>> On Mon, Oct 31, 2022 at 1:17 PM nabil-ak <akir...@gmail.com> wrote:
>>
>>> Hello,
>>>
>>> I want to detect a code (combination of characters) on an image in
>>> python.
>>>
>>> I already tried EasyOCR <https://github.com/JaidedAI/EasyOCR> and Tesseract
>>> Open Source OCR Engine <https://github.com/tesseract-ocr/tesseract> but
>>> noone could detect the characters.
>>>
>>> I also tried to preprocess the picture by inverting the white font to a
>>> black font and painting the background white to make it for the engine
>>> easier to detect the characters.
>>>
>>> *What am i doing wrong?*
>>>
>>>
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