Set minimum confidence to ocr in Matlab

Question

My Matlab program for extracting text using ocr function gives many false positives which having lower confidence. Is there any way to set ocrtxt.WordConfidence to a minimum value and ignore all lower values? I want ocrtxt.Words or ocrtxt.Text only above confidence 0.8 for further process.

ocrtxt = ocr(regionFilteredTextMask);
ocrtxt.Text;

Answer 1

The easiest way would be to create a logical index based on your threshold value:

bestWordsIdx = ocrtxt.WordConfidence > 0.8;
bestWords = ocrtxt.Words(bestWordsIdx)

And same for Text:

bestTextIdx = ocrtxt.CharacterConfidence > 0.8
bestText = ocrtxt.Text(bestTextIdx)