When I try to scan few pages, I noticed the CPU memory usage will be increased and the memory will only be released after I call the TwainCloseSource method. Other than calling TwainCloseSource method, is there any other way to release the memory?

In Fujitsu scanner, i noticed there are 3 options in Black & White image mode. Those options are Static Threshold, SDTC mode and Advanced DTC (Attached with picture) Each of the option provide different result and has its own setting. Static Threshold - Brightness, Threshold and Contrast are all...

According to the document - GdPicture_NET Document Imaging SDK.pdf, the function GdPictureImaging.TwainSetBrightness is used to set the scanner brightness, where the available range is from -1000 to 1000. However, I noticed that some scanners has brightness settings with the range of 1 to 255. Is it...