Usage:
tesseract --help | --help-psm | --help-oem | --version
tesseract --list-langs [--tessdata-dir PATH]
tesseract --print-parameters [options...] [configfile...]
tesseract imagename|stdin outputbase|stdout [options...] [configfile...]
OCR options:
--tessdata-dir PATH Specify the location of tessdata path.
--user-words PATH Specify the location of user words file.
--user-patterns PATH Specify the location of user patterns file.
-l LANG[+LANG] Specify language(s) used for OCR.
-c VAR=VALUE Set value for config variables.
Multiple -c arguments are allowed.
--psm NUM Specify page segmentation mode.
--oem NUM Specify OCR Engine mode.
NOTE: These options must occur before any configfile.
Page segmentation modes:
0 Orientation and script detection (OSD) only.
1 Automatic page segmentation with OSD.
2 Automatic page segmentation, but no OSD, or OCR.
3 Fully automatic page segmentation, but no OSD. (Default)
4 Assume a single column of text of variable sizes.
5 Assume a single uniform block of vertically aligned text.
6 Assume a single uniform block of text.
7 Treat the image as a single text line.
8 Treat the image as a single word.
9 Treat the image as a single word in a circle.
10 Treat the image as a single character.
11 Sparse text. Find as much text as possible in no particular order.
12 Sparse text with OSD.
13 Raw line. Treat the image as a single text line,
翻译:
0 定向脚本监测（OSD）
1 使用OSD自动分页
2 自动分页，但是不使用OSD或OCR（Optical Character Recognition，光学字符识别）
3 全自动分页，但是没有使用OSD（默认）
4 假设可变大小的一个文本列。
5 假设垂直对齐文本的单个统一块。
6 假设一个统一的文本块。
7 将图像视为单个文本行。
8 将图像视为单个词。
9 将图像视为圆中的单个词。
10 将图像视为单个字符
bypassing hacks that are Tesseract-specific.
OCR Engine modes:
0 Original Tesseract only.
1 Cube only.
2 Tesseract + cube.
3 Default, based on what is available.
Single options:
-h, --help Show this help message.
--help-psm Show page segmentation modes.
--help-oem Show OCR Engine modes.
-v, --version Show version information.
--list-langs List available languages for tesseract engine.
--print-parameters Print tesseract parameters to stdout.