OCR (Text Recognition)

Detects and reads text in real time from the camera video. The recognition language is chosen in the analyzer setting OCR Language: English (default), Korean, Japanese, Chinese (Simplified), German, French, Spanish, Portuguese, Hindi, Arabic, or Russian. One analyzer recognizes one language.

Temporal stabilization suppresses results that flicker from frame to frame.
Detected text is sorted into reading order (top to bottom, left to right).

Commands

Command	Description
Scan	Merges the text items at or above Min Confidence in reading order and writes the result; multiple lines are separated by the newline character `\n`. When a Recognized Text variable is bound, results from several frames are compared and the variable is updated only when a stable text is established or changes, and it is cleared when the text has been absent for a while.
Scan All	Writes every detected text item as a JSON array.
Has Text?	Checks whether text is detected.
Count Texts	Writes the number of detected text items.

Settings

Setting	Description
Min Confidence (%)	Only text with confidence at or above this value is included. 0 to 100, default 50.

Output Variables

Field	Type	Value
Detected	Digital	True when text is detected.
Recognized Text	Text	The merged string in reading order; lines separated by `\n`.
Confidence (%)	Number	Average confidence of the included text. Unlike other analysis types, this is written as a fraction between 0 and 1.
Count	Number	Number of detected text items.
Output (JSON Text)	Text	Array of every detected text item.

JSON Output

An array with, per item, text, confidence (a fraction 0 to 1), the center x and y, width, and height.

[
  { "text": "Hello", "confidence": 0.95, "x": 100, "y": 50, "width": 80, "height": 25 },
  { "text": "World", "confidence": 0.88, "x": 190, "y": 50, "width": 70, "height": 25 }
]