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);
调用代码很简单只有一句:
MessageBox.Show(Marshal.PtrToStringAnsi(OCRpart(img_path, -1, startX, startY, width, height)));
其中img_path:为图片路径,startX、startY坐标均为0即可,width、height图片的宽和高。
2012-05-15 00:00:00
726KB
OCR
1