public void ToBinary()
{
var filter = new Threshold(230); // create filter
filter.ApplyInPlace(Image); // apply the filter
Save("binarized");
/*
* Note: Since the filter can be applied as to 8 bpp and to 16 bpp images, the Threshold Value value
* should be set appropriately to the pixel format. In the case of 8 bpp images the threshold value
* is in the [0, 255] range, but in the case of 16 bpp images the threshold value is in the [0, 65535] range.
*/
}
/// <summary>
/// run Ocr-Preprocessing filters
/// TODO: run pre-OCR optimizations on separate thread/process
/// </summary>
/// <param name="screenshot"></param>
private static void RunOcrPreProcessing(Screenshot screenshot)
{
//return;
try
{
//screenshot.Crop(); //TODO: re-enable when screenshotter works again
//screenshot.Resize(); // resize to 300dpi //TODO: neccessary for screenshot?
screenshot.ToGrayscale();
//screenshot.SubtractMedianBlur(); //TODO: how to make it work?
screenshot.ToBinary();
}
catch (Exception e)
{
Logger.WriteToLogFile(e);
}
}
