c#图片识别之Asprise-OCR


Asprise-OCR的使用。

Asprise-OCR下载地址:

http://asprise.com/product/ocr/download.php?lang=csharp

其中需要使用的3个dll是AspriseOCR.dll、DevIL.dll、ILU.dll。

需要注意的是这几个.dll是vc写的引用要在程序中用DllImport引用,关键代码:

[DllImport("AspriseOCR.dll", EntryPoint = "OCR", CallingConvention = CallingConvention.Cdecl)]



public static extern IntPtr OCR(string file, int type);



[DllImport("AspriseOCR.dll", EntryPoint = "OCRpart", CallingConvention = CallingConvention.Cdecl)]



static extern IntPtr OCRpart(string file, int type, int startX, int startY, int width, int height);



[DllImport("AspriseOCR.dll", EntryPoint = "OCRBarCodes", CallingConvention = CallingConvention.Cdecl)]



static extern IntPtr OCRBarCodes(string file, int type);



[DllImport("AspriseOCR.dll", EntryPoint = "OCRpartBarCodes", CallingConvention = CallingConvention.Cdecl)]



static extern IntPtr OCRpartBarCodes(string file, int type, int startX, int startY, int width, int height);

以上是非托管代码的引用方法,不用再在项目里引用()

 


MessageBox.Show(Marshal.PtrToStringAnsi(OCRpart(img_path, -1, startX, startY, width, height)));

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