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Questions tagged [image-scanner]

The python-imagescanner (old pyscanning) implements an abstraction layer which allows users to scan images/documents from Linux or Windows without the need of write any specific Python code for each one of them

Introduction

The python-imagescanner (old pyscanning) implements an abstraction layer which allows users to scan images/documents from Linux or Windows without the need of write any specific Python code for each one of them.

Note: The devices are accessed using the available installed drivers in the platform. Currently the support for Windows is implemented with Twain API and for Linux with SANE.

Supported Devices

All devices supported by SANE (Linux) and Twain (Windows). If you are able to use your device with another application in your platform but you still to access it with imagescanner, please, fill a bug report.

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Want larger camera preview using ZBar scanner Library in Android

I am using ZBarScannerActivity in my android app. but I am getting a small surface view on device. Actually I want full Screen camera preview to scan the QR code. Any help would be appreciated. Thank you. here is the code of ZbarScanner…
Deepak
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MacOS Image Capture app squatting on USB device while trying to use xsane

I had a new machine set up running El Capitan, and xsane installed for the scanner via macports as usual. xsane failed to recognise the device, with the following symptoms: sane-find-scanner found USB scanner (vendor=0x04b8 [EPSON], product=0x0128…
polarbearing
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Tell WIA and TWAIN sources apart in code

Using TWAIN, in the code it has separate identities for sources 'HP scanner WIA' and 'HP scanner TWAIN'. These are the same scanner using different interfaces. Is there anyway to tell that multiple sources are from the same scanner? (Yes I can see…
Johnathan
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C#: How to avoid WIA-error when scanning documents with 2400dpi or more?

when we scan a document with a resolution of 2400dpi or higher, we recieve (for example) the following error-message: COMException: Ausnahme von HRESULT: 0x80010100 (RPC_E_SYS_CALL_FAILED) or COMException: Ausnahme von HRESULT: 0x8021006F in one of…
Stephan_W
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Align images (maps) coming from a scanned source

I have several images like the one below which are coming from a scanned book. The images have been catted with the same image-size but they are slightly distorted and do not overlap perfectly. You can see an animation here…
el_selvaje
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How to use image scanner with node.js

I've seen someone build a cross-platform node module for accessing and managing print jobs. Is it possible to somehow create a similar module for accessing computer's image scanner? I'd like to create a nice nodewebkit app that would ease the…
Kuba Orlik
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Scanning image using Twain.Dll

I'm trying to remove the scanner property option. It comes from when I press Acquire button from menu strip. My aim to remove that Scann Property Screen but Can't. Any way to remove that screen? (that form not defined inside project) project source…
BCA
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Camera support and scanners

So I followed the simple instructions for getting a webcam working in HTML5 here: http://davidwalsh.name/browser-camera It works perfectly. When the software loads, the browser asks which camera you would like to share. You chose the one you want…
franzcatch
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Access scanner from Java or Python (or something else if it's technically motivated) in Linux (but Windows would be nice)

I want to write a system for handling important documents in my home. This is the user story for getting a new document: I "Add new document" and am prompted to scan it using my combined printer/scanner. I view the scanned copy to see it's of good…
user14070
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Is barcode Code39 scanning reliable?

Within my iOS App I am using a 3rd party scanning library for scanning Code39 barcodes. This software sometimes gets the scan wrong (e.g. a value of "13415566" comes back as "U *"). Sometimes the same barcode works ok, then scan the same code…
Journeyman
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How to scan cheque from android

I am going to write an application which scan the bank's cheque and extract an information from it (e.g bank name,amount, date, signature etc). I did some goggling on it but what i found is bar code scanner and ocr scanner. Is there any way using…
Nirav Bhandari
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How do I acquire an image from a scanner?

I have iBall A3 image scanner, and I want to scan an image using a VB6.0 application. Does anybody know about this type of application?
bharath
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WIA How to unlock/disconnect/reset a scanner

I am struggling with WIA. I have 2 scanners connected to the same computer and I'm writing an app (VB.net) to scan from scanner 1, then scanner 2, then scanenr1 again. WIA is happy to select scanner2 after scanner 1 but refuses to come back to…
vincent
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How to get and run TWAIN DSM files?

When I run the Twain implemented framework I get this error: NO TWAIN DATASOURE IS NOT INSTALLED. I am using Window7 64-bit. I downloaded some drivers from SourceforgeTWAIN DSM FILES. The download directory contains: TWAINDSM.dll TWAINDSM64.msm I…
tech2504
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load all scanner devices?

hi really i need help in this i typed this code to load all connected scanner device to acombobox but it work in windows 7 in windows xp i got this noisy exception Retrieving the COM class factory for component with CLSID…
user1637402
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