I was able to repeat the protocol of data exchange fingerprint reader in a standalone application. Of course, I could not entirely parse the protocol, and I just copied all the actions performed by the driver under Windows. At the moment I can initialize the device and wait for when the fingerprint will be enrolled and then get the data from the reader. The scanner gives the data of the fingerprint by eight blocks of 61440 bytes in each. Manufacturer's web site indicated that image resolution is 192 x 8 pixels @ 508 dpi, 16 gray levels / sensor pixel (4-bit ADC). Unfortunately, I'm totally not familiar with the image processing algorithms. I tried to write the obtained data as the PGM image, but this format only supports 8 bits per pixel, hence 61440 bytes - it is exactly an image 192 x 320. If I give a link to a sample of the data, obtained from reader, can you help me deal with what to do with this data? I would like to know at least what they look like and how they can be passed to the processing libfprint, if it possible at all.
Thanks in advance, with best regards, Alexey Prokopchuk. _______________________________________________ fprint mailing list [email protected] http://lists.reactivated.net/mailman/listinfo/fprint
