I'm looking for a tool which would be able to capture a screen region, pass it to OCR and put the result into clipboard.
"import ppm:- | gocr -i - | xclip -selection c" works, but gocr is unreliable: simple text on a webpage has errors. It is a clear font but the OCR tool always misses "r" and replaces it with underscore.
"import ppm:- | ocrad -i - | xclip -selection c" says "ocrad: maxval 255 in ppm "P6" file."
tesseract needs an image file and does not accept piping input to it.
xfce4-screenshooter does not do OCR.
ABBYY Screenshot Reader is proprietary.
tessnet2 is freeware running on a proprietary platform.
Google Docs can OCR screenshots in a batch. But my data is confidential and better not put online.
Graphical interface solutions would be acceptable for this question, too.
There is a number of existing SuperUser questions about OCR. They fall in several categories.
Questions just about OCR without the "screenshot taking" part.
Open Source OCR for linux
Free OCR for Arabic text
Looking for recommendations on OCR problem - tabular numeric data
Which has better OCR applications: Ubuntu, or Mac/iPad, or Windows?
How can I preform OCR from the command line?
OCR solution on linux machine from command line (duplicate)
Free OCR software
OCR for Sanskrit ( OR devanagari)
Copy image and paste to OCR (windows)
File processing OCR instead of screenshot.
Online OCR website for processing an entire pdf file at one time?
Practical OCR solution for converting a large book to a digital format?
How to extract text with OCR from a PDF on Linux?
Batch-OCR many PDFs
OCR Image based PDF
Copy image and paste to OCR
Extract OCR text from Evernote
OCR in Word 2013
Replace (OCR) garbled text in PDF?
Process files prior to running OCR.
How can I make OCR recognize my documents' text better?
Tesseract OCR recognition bilingual document. mistakes tolerance level setup
OCR for low quality images
How do I get the best quality screenshot for OCR (Optical Character Recognition) and what tool would be the best for screenshots?
OCR training.
Training Tesseract-OCR for english language fonts
None of them answer this question.