LocateTextPretrainedModel

The types of pretrained LocateText models that are available for selection in the relevant filter. Each model is assigned a reliable detection range: if the height of a character falls below a set percentage of the inCharHeight parameter or rises above a set percentage of the inCharHeight parameter, then, while it may end up being detected anyway, the accuracy of that detection will likely be lower than it would be if it were to fall within the reliable detection range. The inCharHeight parameter is set in the filter DL_LocateText.

• Basic:
  • most highly optimized of all the models, combining fast execution with high accuracy of detection
  • recommended for cases where the font size cannot be guaranteed to remain stable across inspected images
  • reliable detection range: roughly between 0,57 × inCharHeight and 1,43 × inCharHeight. For example, if the uppercase letter "A" is 35 pixels high, then other uppercase letters not lower than 20 pixels and not higher than 50 pixels will fall within the reliable detection range
  • relatively fast, very accurate and relatively flexible

• Scalable:
  • recommended for cases where the font size is expected to change drastically across inspected images
  • reliable detection range: roughly between 0,34 × inCharHeight and 1,67 × inCharHeight. For example, if the uppercase letter "A" is 60 pixels high, then other uppercase letters not lower than 20 pixels and not higher than 100 pixels will fall within the reliable detection range
  • relatively fast, relatively accurate and extremely flexible

Values of this enumeration:

• Basic
• Scalable