Tesseract: Has stdin option changed?

[uttrasey]

Environment

• 4.0.0-rc1-37-g1e47
• 1e4768c1f56e530ecb301710eaa026abb5953ca8
• Mac OS

Current Behavior:

calling with tesseract with stdin option should read from stdin. Instead now I get Cannot open input file: stdin

These are my args [ 'stdin', 'stdout', '-l', 'eng', '-c', 'tessedit_create_hocr=1', '-c', 'tessedit_pageseg_mode=1', '-c', 'hocr_font_info=0' ]

Expected Behavior:

in previous commits, this worked fine, for example when streaming images into Tesseract.

Suggested Fix:

Update the documentation if it's changed or restore the original behavior.

[uttrasey]

Awesome project btw 😄 👏 👏 👏 👏 👏 👏 👏

[zdenop]

We do not support 3rd party project ;-)
You need to replicate it with tesseract executable,

[amitdo]

Zdenko, you need to take stdin into account here.

https://github.com/tesseract-ocr/tesseract/blob/a86292b111f836e543ce5d828a4b5c8d5ef15d2a/src/api/tesseractmain.cpp#L537

[uttrasey]

@zdenop apologies if I misunderstand but I am calling tesseract executable directly.

The stdin option seems to have stopped working, it's a documented option

https://github.com/tesseract-ocr/tesseract/wiki/Command-Line-Usage#tesseract---help-extra

[amitdo]

I already found the cause, see above comment.

[stweil]

Pull request #1960 addresses this issue.

[amitdo]

@uttrasey,

Please try the latest commit from the master branch.

[uttrasey]

Looking good, thanks for the swift turnaround