Logging recognition events

Aspose.OCR for Java can show recognition progress in the console or log it to a file. The logging is activated and configured with a static Logging class. You can use the following properties to activate logging and specify its parameters:

Property	Type	Description
Logging.console	bool	Set to true to enable the display of recognition progress in the console.
Logging.fileSystem	bool	Set to true to write recognition progress to a file specified in Logging.logFilePath property.
Logging.logFilePath	string	Specify an absolute or relative path to the log file. Applicable only when the Logging.fileSystem property is set to true.
Logging.loggingLevel	LoggingLevel	Specify the log severity. See Log severity levels for details.

Enable logging

Logging.loggingLevel = LoggingLevel.Debug;
Logging.fileSystem = true;
Logging.console = true;
Logging.logFilePath = "recognition.log";

Result

Open file. Started. 11.01.2023 12:32:58
Open file. Ended. 11.01.2023 12:32:59
Read image data. Started. 11.01.2023 12:32:59
Read image data. Ended. 11.01.2023 12:32:59
Preprocess file. Started. 11.01.2023 12:32:59
Preprocess file. Ended. 11.01.2023 12:33:00
Recognition process. Started. 11.01.2023 12:33:01
Region detection. Started. 11.01.2023 12:33:01
Region detection. Ended. 11.01.2023 12:33:10
Recognize characters. Started. 11.01.2023 12:33:10
Recognize characters. Ended. 11.01.2023 12:33:11
Recognition process. Ended. 11.01.2023 12:33:11

Log severity levels

You can configure the log severity by specifying one of the following values in Logging.loggingLevel property:

Severity	Value	Description
LoggingLevel.Error	2	Error events of considerable importance that will affect normal program execution.
LoggingLevel.Warning	1	Potentially harmful situations that might still allow the application to continue running.
LoggingLevel.Debug	0	Detailed trace messages useful for application developers.
LoggingLevel.None	3	No logging. Works the same as turning off logging with Logging.console and Logging.fileSystem parameters.