Questions tagged as 'ocr'

Tagged questions
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answer

Delete all tones of a bitmap color c #

Hi, I'm trying to delete all the orange tones of an image saved in a bitmap, I need to do OCR on the image with tesseract and the orange color of the scanned document seems to hinder the process producing errors in the text, I tried removing the...
asked by 31.03.2018 / 05:06
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Tesseract OCR wrapper for net core?

I am looking for a tesseract wrapper that works with .net core; Currently, when I add the nuget tesseract package, I get the warning: Package 'Tesseract 3.0.2' was restored using '.NETFramework,Version=v4.6.1' instead of the project target fr...
asked by 26.11.2018 / 02:47
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Some example of OCR vision text for android

Does anyone have an example of ocr that detects the text with the camera and that is working? I have already searched and followed the google tutorial: link and it does not work anymore, change the version of the dependencies compil...
asked by 16.04.2018 / 09:58
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How to get TextBlock from an image using TextRecognizer vertically

I am developing an Android application that reads text from an image in order to scan a DNI. For this I use the object TextRecognizer and its method .detect(Frame) which is passed a frame and he analyzes it by returning a...
asked by 23.02.2018 / 11:49
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Problem Recognition of numbers from an Image

I have been trying to recognize a serial number in several images from rifles like the following: I have tried with an OCR for image recognition called Asprise: Asprise OCR and it has worked, however I developed the project to carry i...
asked by 02.05.2017 / 23:02
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Error with Tesseract js

I need help. I am trying to generate a code that shows the text in an image and I found the Tessereact.js library, but when the use shows me this error    Uncaught DOMException: Failed to execute 'getImageData' on   'CanvasRenderingContext2D'...
asked by 24.11.2018 / 01:17
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How do I solve this OCR download problem: I / Vision: libocr.so library load status: false?

I have this problem with the api OCR mobil vision text google: I think that does not download the OCR dependency I get the following message:    / SendBroadcastPermission:   action: android.intent.action.MEDIA_SCANNER_SCAN_FILE,   mPermission...
asked by 18.04.2018 / 09:49
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Tesseract OCR for PHP (Image to characters)

I am using Tesseract OCR for PHP and Laravel 5.6, to extract characters from an image, but I do not use the library that I use this . I put the facade, the code is as follows: $filePath = public_path() . '/imagenes/text.png'; $dat = (new T...
asked by 12.04.2018 / 01:16
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Tesseract c ++, error in SetImage

I am applying tesseract to individual character images sequentially, the first character is detected correctly, but when processing the second the program stops as shown in the image The problem is that Tesseract is not able to clean th...
asked by 07.07.2017 / 17:18
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cv2.calcHist causes error "pythonw.exe has stopped working"

I am working on a project with OCR using a webcam. I need to know the number of black pixels present in an image, so I tried to use the cv2.calcHist function but it causes python to stop when I execute the code. If I comment lines 13 and...
asked by 05.02.2017 / 17:47