tesseract

问题 This question already has answers here : why tesseract fails for this image? (2 answers) Closed 5 years ago . I'have tried tesseract on this image and some scanned images with some text inside rectangles. but it fails each time with "empty image" as output. please suggest me how can i solve this problem as I'm working on form prosessing. plz do help 回答1: What you could do would be to draw a section of the image you are getting, where the section would be the inner part of the border. You

问题 I am trying to extract text out of an image. The issue is that I am using the below given code to process the image and print the extracted text. public class Test { public static void extractText(String filename) // public static void main(String[] args) { System.setProperty("jna.library.path", "32".equals(System.getProperty("sun.arch.data.model")) ? "lib/win32-x86" : "lib/win32-x86-64"); File imageFile = new File("img_perspective.png"); Tesseract instance = Tesseract.getInstance(); // JNA

问题 I am trying to intercept the red Empty page!! message that gets printed to my screen when using Tess4J . I wrote a short interceptor class that overrides print and println and replaced stdout and stderr to check for this string: private static class Interceptor extends PrintStream { public Interceptor(OutputStream out) { super(out, true); } @Override public void print(String s) { if ( !s.contains("Empty page!!") ) super.print(s); } @Override public void println(String s) { if ( !s.contains(

问题 I'm using two traineddata files in tesseract in order to recognize two languages. But because the accuracy wasn't good enough, I trained tesseract and produce a new traineddata file which I want to merge it with one of the two language files I use. So my question is: How can it be possible to merge the new traineddata file with one of the files that is found here: https://code.google.com/p/tesseract-ocr/downloads/list .Any help? 回答1: You can unpack the existing .traineddata and merge the

问题 I am writing a Python program for a quiz answer-bot (for educational purposes only) using Tesseract OCR and the google-search-Api . The program seems to be very accurate when dealing with direct question ("who did what", "what is this") but has some problems with questions which include the answers as a part of themselves ("which of these"). import pytesseract from PIL import Image from googleapiclient.discovery import build import json import unicodedata import time import os #removing non

问题 I have created a console application. Added a reference to tessnet2_32. Ocr ocr = new Ocr(); using (Bitmap bmp = new Bitmap(filename)) { tessnet2.Tesseract tessocr = new tessnet2.Tesseract(); tessocr.Init(@"C:\temp\tessdata", "eng", false); ... I also tried changing "C:\temp\tessdata" to C:\work\ConsoleApplication3\ConsoleApplication3 C:\work\ConsoleApplication3\ConsoleApplication3\tessdata C:\work\ConsoleApplication3\ConsoleApplication3\bin\debug C:\work\ConsoleApplication3

问题 I'm trying to make a program that can read the information off of a nutritional label but Tesseract is having lots of issues actually being able to read anything. I've tried a number of different Image processing techniques using OpenCV but not much seems to help. Here are some of my better looking attempts (which happen to be the simplest): Tango bottle label uneditied Tango bottle label edited Output: 200k], Saturates, 09 Irn Bru bottle label unedited Irn Bru bottle label edited Output This

问题 I have aplied pytesseract in Three similar images of the digit "2". Only in the last one, pytesseract reconize correctly the digit. The three images have diferent dimensions and if i change the dimension of the images in the right way, pytesseract correctly reconize them. But i dont understand how a powerful ocr like tesseract is not working well in a so easy and clear image. first image, fail in recognize second image, also fail third image, sucessful im using python 3.7 with anaconda,

问题 Why does my Tesseract instance require me to explicitly set my datapath, but doesn't want to read the environment variable? Let me clarify: running the code ITesseract tesseract = new Tesseract(); String result = tesseract.doOCR(myImage); Throws an error: Error opening data file ./tessdata/eng.traineddata Please make sure the TESSDATA_PREFIX environment variable is set to the parent directory of your "tessdata" directory. I already have set my environment variable, ie doing echo $TESSDATA

问题 As in this post: pytesseract using tesseract 4.0 numbers only not working Described, its possible to detect numbers with the eng.traineddata file but if I want to detect only numbers, this isn't possible with this file. Even if you define tessedit_char_whitelist=0123456789 it doesn't recognize anything. I searched on GitHub and so on to find a digit.traineddata for Tesseract 4.0 but didn't found one? Does someone know which one I could take? Is it possible to use one from Tesseract 3.x (but