ImageGear for C and C++ on Windows v19.1 - Updated
Process Statistics
User Guide > How to Work with... > OCR > How to... > Assess and Analyze OCR Output > Process Statistics

The integrating application can retrieve timing and other statistical information about the last processed image. This may include the following:

The application calls IG_REC_statistics_get() for this purpose. The fields of the AT_REC_STATISTICS structure will be filled with the relevant information on return.

The function can be called during any phase of the processing. The time for any process (from enumIGRecProcessId) that has not run contains zero (0). Similarly, if no recognition has been performed when the statistic function is called, each relevant field of the AT_REC_STATISTICS structure contains zero (0).

All timing data is measured in milliseconds.

Processing Statistics of an Image

C
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AT_ERRCOUNT nErrCount;
AT_INT nChar, nWord, nRej;
AT_INT nPTime, nLTime, nRTime;
HIGEAR hIGear;
HIG_REC_IMAGE hImg;
AT_REC_STATISTICS stat;
nErrCount = IG_load_file("Image.tif", &hIGear );
nErrCount = IG_REC_image_import(hIGear, &hImg);
nErrCount = IG_image_delete(hIGear);
nErrCount = IG_REC_image_import(hIGear, &hImg);
nErrCount = IG_REC_image_preprocess(hImg);        // -> PreprocTime
nErrCount = IG_REC_zones_locate(hImg, NULL);    // -> DecompTime
nErrCount = IG_REC_image_recognize(hImg); // -> ReadTime, RecognitionTime
nErrCount = IG_REC_statistics_get(&stat);
nChar = stat.CharCount;   // Number of recognized characters
nWord = stat.WordCount;  // Number of recognized words
nRej = stat.RejectedCharCount;  // Number of rejected characters
nPTime = stat.PreProcTime;// Image pre-processing time
nLTime = stat.DecompTime; // Time necessary for auto-zoning of the image.
nRTime = stat.ReadTime;// Full recognition time