tesseract

OCR - Getting text from image using tesseract 3.0 and imagemagick 6.6.5

由 北城以北 提交于 2019-12-09 04:28:02
问题 I am trying to build a shell script that allows me to search for text in an image. Based on the text, the script will try its best to get the text from the image. I wanted your input on this as this script seems to work with most images, but not those images where the text font color is similar to smaller-surroundings around the text. # !/bin/bash # # imt-ocr.sh is image magick tessearc OCR tool that is used for finding out text in image # # Arguments: # 1 -- image filename (with path) # 2 --

Trouble recognizing digits in Tesseract - android

由 我与影子孤独终老i 提交于 2019-12-09 04:23:08
问题 I was hoping someone could tell me why it is my Tesseract has trouble recognizing some images with digits, and if there is something i can do about it. Everything is working according to test, and since it is only digits i need, i thought i could manage with the english pattern untill i had to start with the 7segmented display aswell. Though i am having a lot of trouble with the appended images, i'd like to know if i should start working on my own recognition algorithms or if I could do my

Batch OCR of 5800+ PDF written in German Fraktur

由 我的梦境 提交于 2019-12-09 02:19:29
I would like to batch OCR about 5800 PDF (consisting each between 2 to 6 pages from my last question here ) with open source command line tools on a Mac. The main propose of this adventure is that I want to retrieve as reliable as I can names (surnames most importantly) from the text of all these PDF . Here is an example how an issue looks like. At this point, I do not know exactly how to proceed. What would you do? I had in mind to first convert all multipage PDF to a single page image as either png , jpg , or tif and move all images related to one PDF into a respective folder with the

Pytesseract Image_to_string returns Windows Error: Access denied error in Python

由 China☆狼群 提交于 2019-12-09 01:57:31
问题 I tried to read the text from the image using Pytesseract.I am getting Access denied message when I run the below script. from PIL import Image import pytesseract import cv2 import os filename=r'C:\Users\ychandra\Documents\teaching-text-structure-3-728.jpg' pytesseract.pytesseract.tesseract_cmd = r'C:\Python27\Lib\site-packages\pytesseract' image=cv2.imread(filename) gray=cv2.cvtColor(image,cv2.COLOR_BGR2GRAY) gray=cv2.threshold(gray,0,255,cv2.THRESH_BINARY|cv2.THRESH_OTSU)[1] gray=cv2

How to set tessedit_write_images in python-tesseract?

由 徘徊边缘 提交于 2019-12-08 19:28:53
问题 I'm trying to set tessedit_write_images but can't seem to do it, i can't see the tessinput.tif anywhere i'm doing: import tesseract api = tesseract.TessBaseAPI() api.Init(".","eng",tesseract.OEM_TESSERACT_ONLY) api.SetPageSegMode(tesseract.PSM_AUTO_OSD) api.SetVariable("tessedit_write_images", "T") but i've tried with "True", "1", and some more variations, doesn't seem to work at all. Any help? 回答1: tessedit_write_images is checked only once in Tesseract's source code (by TessBaseAPI:

Python Tesseract can't recognize this font

由 独自空忆成欢 提交于 2019-12-08 17:05:48
问题 I have this image: I want to read it to a string using python, which I didn't think would be that hard. I came upon tesseract, and then a wrapper for python scripts using tesseract. So I started reading images, and it's done great until I tried to read this one. Am i going to have to train it to read that specific font? Any ideas on what that specific font is? Or is there a better ocr engine I could use with python to get this job done. Edit: Perhaps I could make some sort of vector around

How to use tesseract 3.02 trained data in C#? [closed]

由 北城以北 提交于 2019-12-08 15:05:37
问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 5 years ago . I can able to get the proper OCR output using newly trained tessedata (version 3.02) through command prompt but I want same output in C# code with DLL ref.I have tried with tessnet2_32.dll reference but It is throwing exception so How to use or access the tesseract 3.02 version

Tesseract not picking up different colored text

由 你离开我真会死。 提交于 2019-12-08 11:17:20
问题 I am trying to make a program that will scrape the text off of a screenshot using tesseract and python, and am having no issue getting one piece of it, however some text is lighter colored and is not being picked up by tesseract. Below is an example of a picture I am using: I am am to get the text at the top of the picture, but not the 3 options below. Here is the code I am using for grabbing the text result = pytesseract.image_to_string( screen, config="load_system_dawg=0 load_freq_dawg=0")

OCR Tessearct Scanning Chunks of text not left to right iOS

由 前提是你 提交于 2019-12-08 09:23:49
问题 I have a piece of paper that I want to scan, however the paper is not formatted in a way that scanning from left to right will work. As of now it will scan from left to right even if some text isn't "grouped" together. How can I make Tesseract recognize text that is grouped and scan the grouped text together instead of left to right? Image(Can't post images low rep) http://cdn.designrshub.com/wp-content/uploads/2012/06/alignment.jpg For example how would I make it recognize that each of those

iPhone: How to use Tesseract

由 柔情痞子 提交于 2019-12-08 07:40:49
问题 This is regarding use of Tesseract in an iPhone app. I followed the steps provided here: http://iphone.olipion.com/cross-compilation/tesseract-ocr Now I have 2 questions: 1) How to use this in my iPhone project (which files need to be included, methods need to be called, etc.) 2) I googled and found that I'll have to include libtesseract_api.a but got this message: file was built for unsupported file format which is not the architecture being linked (i386) Please help me to understand this.
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