Tobias Wolf wrote: > I did something real crass (or stupid, not sure) and changed the USB id > in aes4000.c to my unsupported model's 08ff:5711 (an AES 3500 as far as > I know, Samsung X30 integrated).
Nice! How do you know it's an AES3500? I don't know better, just curious how you reached this conclusion :) I tried to confirm this by looking for the windows driver for this laptop on samsung's site, but I had no luck. I'm assuming the NX30 laptop is the one in question (no X30 in the list...) > The result is attached. It scanned alright, but the result is striped > and blocky. I found that the image format is 128x128. Is there a way to > help adding support without knowing how to read raw USB dumps?[1] You could submit dumps for others to read :) Assuming you can use this sensor under windows, please use this sniffer: http://www.pcausa.com/Utilities/UsbSnoop/default.htm The image looks a bit blocky because the AES4000 driver includes a magnification of the image (improves image processing performance, temporary workaround for a NBIS bug). But yes, even without the magnification it wouldn't look great, and those stripes aren't that nice either. The finger ridges don't seem to line up very well over different stripes. Also the image is only of a very small area of the finger. Our current image processing code doesn't work that well with such small images (whereas it works brilliantly for images that cover more of the finger). Have you had any success with the enroll and verify example programs (or using the equivalent functionality under fprint_demo)? I'd be interested to see binarized versions and binarized images where the minutiae are plotted (fprint_demo verify interface gives you these controls) I'm pleased that you've got this far though. Even if the image processing performance is not great I would be interested in including this driver to allow others an easy path to work on fixing the other problems. I'd suggest copying aes4000 to aes3500, making your modifications, then submitting a patch. There will be a fair amount of duplicated code but I will reduce this quite soon as there is a good amount of code that all authentec devices can share. p.s. gif format works well for fingerprint images, resultant files are small and emailable. Thanks! Daniel _______________________________________________ fprint mailing list [email protected] http://lists.reactivated.net/mailman/listinfo/fprint
