tesseract

问题 Problem I am trying to write code in Python for the Image preprocessing and recognition using Tesseract-OCR. My goal is to solve this form of captcha reliably. Original captcha and result of each preprocessing step Steps as of Now Greyscale and thresholding of image Image enhancing with PIL Convert to TIF and scale to >300px Feed it to Tesseract-OCR (whitelisting all uppercase alphabets) However, I still get an rather incorrect reading (EPQ M Q). What other preprocessing steps can I take to

问题 dyld: Library not loaded: /usr/local/opt/libpng/lib/libpng16.16.dylib Referenced from: /usr/local/opt/leptonica/lib/liblept.5.dylib Reason: Incompatible library version: liblept.5.dylib requires version 54.0.0 or later, but libpng16.16.dylib provides version 29.0.0 Abort trap: 6 Have tried brew reinstall and upgrade, and tesseract reinstall, leptonica reinstall, deleted cache, deleted libs forcing new to be downloaded, nothing works. Not sure if this is a brew problem or leptonica, or the

问题 We have a C# .Net app that is using Tesseract to do Optical Character Recognition (OCR) on .tiff files. Here's an Example: We are then outputting the data to a text file. However, Tesseract is reading the data in a Vertical fashion. In my example image, it is reading the tiff as two columns of data and the data the data is being outputted from Tesseract like this: TYPE: DATE: Address: City: State: Owner: Owner Type: Acreage: Mortgage: 12345 2017-04-06 100 Main St. Some City Some State John

问题 We have a C# .Net app that is using Tesseract to do Optical Character Recognition (OCR) on .tiff files. Here's an Example: We are then outputting the data to a text file. However, Tesseract is reading the data in a Vertical fashion. In my example image, it is reading the tiff as two columns of data and the data the data is being outputted from Tesseract like this: TYPE: DATE: Address: City: State: Owner: Owner Type: Acreage: Mortgage: 12345 2017-04-06 100 Main St. Some City Some State John

问题 I am using pytesseract, pillow,cv2 to OCR an image and get the text present in the image. Since my input is a scanned PDF document, I first converted it into an image (JPEG) format and then tried extracting the text. I am only half way there. The input is a table and the titles are not being displayed, since the titles have a black background. I also tried getstructuringelement but unable to figure out a way. Here is what I have done until now- import cv2 import os import numpy as np import

问题 I am using pytesseract, pillow,cv2 to OCR an image and get the text present in the image. Since my input is a scanned PDF document, I first converted it into an image (JPEG) format and then tried extracting the text. I am only half way there. The input is a table and the titles are not being displayed, since the titles have a black background. I also tried getstructuringelement but unable to figure out a way. Here is what I have done until now- import cv2 import os import numpy as np import

问题 I've had tesseract and Tess4J running on my MBP for a while now. Today I started to migrate my app to the server and started installing everything on the server. Prior to running Tess4J in tomcat I tried to run a simple java program to make sure everything is fine and dandy. It's not... I'm on a centOS 64bit server I've installed tesseract and its working fine - tesseract myimage.jpg mytext produces data However, running my simple class that useses Tess4j produces this error: Exception in

问题 I've had tesseract and Tess4J running on my MBP for a while now. Today I started to migrate my app to the server and started installing everything on the server. Prior to running Tess4J in tomcat I tried to run a simple java program to make sure everything is fine and dandy. It's not... I'm on a centOS 64bit server I've installed tesseract and its working fine - tesseract myimage.jpg mytext produces data However, running my simple class that useses Tess4j produces this error: Exception in

问题 Currently I am using Tesseract 3 in an android application (armv7 & arm64 architectures). But, I need to upgrade to Tesseract 4 for using some of its additional features. How do I upgrade to Tesseract 4? These are the things I tried so far: compiling_on_terminal_or_androidStudio compiling_using_docker Issues with those approaches: issue_with_terminal_approach issue_with_docker_approach Error log : D:\Kunal\tess_related\tess-backup\tess>gradlew assemble > Task :eyes-two:generateJsonModelDebug

问题 How would I get the % confidence per character detected? By searching around I found that you should set save_blob_choices to T. So I added that to as a line in the hocr config file in tessdata/configs and called tesseract with it. This is all I'm getting in the generated html file: <span class='ocr_line' id='line_1' title="bbox 0 0 50 17"><span class='ocrx_word' id='word_1' title="bbox 3 2 45 15"><strong>31,835</strong></span> As you can see there isn't any confidence annotations not even