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FAQs: Asprise OCR v4.0 for Visual Basic (VB) 6.0
- What's new in Asprise OCR v4.0?
Asprise OCR v4.0 provides full support for Windows Vista, and most of 64bit operating systems.
Additionally, Asprise OCR v4.0 features optimized OCR engine with higher accuracy and faster speed.
- Is there any difference between the trial version and full version?
There is no functional
difference. However, according to the evaluation license agreement, developers
are not allowed to distribute software using a trial version of Asprise OCR
library.
- What kinds of operating systems does Asprise OCR library support?
Asprise OCR supports
most of popular platforms. We have pre-compiled Asprise OCR library on Win32
platforms and various Unix platforms.
- What kinds of image formats does Asprise OCR library support?
Asprise OCR supports
a wide range of image formats. Details are shown in the table below:
| .bmp (Windows bitmap) |
.cut (Dr. Halo Cut File) |
.ico (Icon) |
| .jpg, .jpeg (JPEG) |
.lbm (Interlaced bitmap) |
.pcd (PhotoCD) |
| .pcx |
.pic |
.png (Portable Network Graphics) |
| .pnm, .pbm |
.sgi (Silicon Graphics) |
.tga (Targa) |
| .tif, .tiff |
.chead |
.raw |
| .wal (Quake 2) |
.mng |
.jng |
| .gif |
.dds |
.dcx |
| .psd (Photoshop) |
.exif |
.psp |
| .pix |
.pxr |
.xpm |
In practice, you do not need to specified the format of the input image thanks
to Asprise OCR's image format autodection feature.
- How to set up development environment?
Please refer to
the developer guide.
- Is it difficult to perform OCR with Asprise OCR?
Not at all. Belows
shows a complete demo program that performs OCR on the file C:/ocr.jpg and
returns the results:
Private Declare Function OCR Lib "AspriseOCR.dll"
(ByVal file As String, ByVal imageType As Long) As String
Private Declare Function OCRBarCodes Lib "AspriseOCR.dll"
(ByVal file As String, ByVal imageType As Long) As String
Private Declare Function OCRpart Lib "AspriseOCR.dll"
(ByVal file As String, ByVal imageType As Long, ByVal startX As Long,
ByVal startY As Long, ByVal width As Long, ByVal height As Long) As String
Private Sub Command2_Click()
Dim ret As String
ret = OCR("C:\\ocr.jpg", -1)
End Sub
The above code demostrates the basic usage of Asprise OCR. For advanced
techniques, please refer to the developer's
guide.
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