tesseract-ocrHow can I use Tesseract OCR to set the Page Segmentation Mode (PSM) for an image?

To use Tesseract OCR to set the Page Segmentation Mode (PSM) for an image, you will need to use the tesseract_cmd.SetPageSegMode() method. This method takes a single argument, which is an integer representing the desired page segmentation mode.

For example, to set the PSM to single line mode, you would use the following code:

import tesseract_cmd

api = tesseract_cmd.TessBaseAPI()
api.SetPageSegMode(tesseract_cmd.PSM_SINGLE_LINE)

The PSM_SINGLE_LINE constant is defined in the tesseract_cmd module and is used to indicate the single line page segmentation mode. Other constants that can be used to set the page segmentation mode are:

• PSM_AUTO: Automatically detect the page segmentation mode
• PSM_SINGLE_BLOCK: Treat the image as a single text line
• PSM_SINGLE_CHAR: Treat the image as a single word
• PSM_SINGLE_COLUMN: Treat the image as a single column of text
• PSM_SINGLE_BLOCK_VERT_TEXT: Treat the image as a single block of vertically aligned text
• PSM_SPARSE_TEXT: Treat the image as a sparse text
• PSM_SPARSE_TEXT_OSD: Treat the image as a sparse text with orientation and script detection

For more information about the different page segmentation modes and how to use them, please refer to the Tesseract OCR documentation.

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