c#圖片識別之Asprise-OCR

Asprise-OCR的使用。

Asprise-OCR下載地址：

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

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

需要注意的是這幾個.dll是vc寫的引用要在程序中用DllImport引用，關鍵代碼：

[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);

以上是非托管代碼的引用方法，不用再在項目里引用（）

 

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