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Dear Sir,
I found these constants in TwainConstants.class file
quote:
ICAP_BARCODEDETECTIONENABLED Turns bar code detection on and off.ICAP_BARCODEMAXRETRIES Restricts the number of times a search will be retried if none are found on each page.
ICAP_BARCODEMAXSEARCHPRIORITIES Determines how many bar code detection priorities can be set.
ICAP_BARCODESEARCHMODE Restricts bar code searching to certain orientations, or prioritizes one orientation over the other.
ICAP_BARCODESEARCHPRIORITIES A prioritized list of bar code types dictating the order in which bar codes will be sought.
ICAP_BARCODETIMEOUT Restricts the total time spent on searching for a bar code on each page.
Can this varialbles are useful for barcode seperation….
How can i write a code so that my scanner should do barcode detection and document seperation…. pls solve the problem
-Rodricks
what program language do you want to write your application in?
I am sorry can’t help you with JAVA 😕 I am writing all my TWAIN applications in C.
but as a start I would load the twain_32.dll and initialize an application. just follow the steps in the specification 1.9 at page 41, this should be enough for the beginning.
barcode: no idea, haven’t done anything with barcode yet, I guess you will have to experiment with the commands you listed in your first post and I guess the specification might be useful too.
blank page seperation: you mean you have a couple of pages and you put a blank page in between and then you put everything in the automatic document feeder and your scan programm makes too different files out of them. well….as far as I know this functin doesn’t exist like this in C. But I will have to tackle this problem too (in probably two weeks time) and my idea was to make a rough check of every scanned page if there is very little text on it and if so then make a histogram of it and somehow decide from the histogram if it is a blank page or just a page with a few words on.
p.s: I think you can stop writing SIR we are not that formal here in this forum 😉
well the barcode separation sounds not that difficult to me, because it is much easier to detect a page with something specific on it than a page which is empty. the main problem I see with blank page separation is that you will never get a clear white page with a scan, you will always have some coloured pix in it. So the question is where you draw the line between this is a white page this is not a white page.
my name is Christoph 🙂
hey rodricks,
what do you mean with resolution? the resolution of the scanner? I don’t understand how the colour of the page changes the resolution of the scanner?
how much time do you have to solve this problem?
thanks for the link
I also use barcode scanner. But I never consider about the resolution problem, for the barcode reading tool can read it clearly and easily. I use this barcode scanner to read barcodes. It supports various barcode types, including rich linear barcode types and 2D barcode types, like QR Code, etc. Maybe a good barcode reader can reduce many problems.
@bigheartse wrote:
I also use barcode scanner. But I never consider about the resolution problem, for the barcode reading tool can read it clearly and easily. I use this barcode scanner to read barcodes. It supports various barcode types, including rich linear barcode types and 2D barcode types, like QR Code, etc. Maybe a good barcode reader can reduce many problems.
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