Despeckle Library (royalties free)

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This despeckle sdk (API) allows the removal of speckle in scanned or faxed images. The speckle is the presence of black points of noise in images acquired by a scanner or received by fax.

Cleaning images is a very important preprocessing step to improve the compression rate, the visualization aspect and the accuracy using ICR/OCR.

Despeckle (speckle detection and deletion) can be very easily performed, specifying the maximum width and height of isolated black elements to be considered as speckle.

You have obviuosly to supply a monochrome DIB (Device Indipendent Bitmap) in input to the process.

The despeckle process is fast and accurate.

Demo
For testing this library you can download a demo application (400 Kb) that allows you to use this function with your TIF images: please give us your feedback and your comments after the test ! In the last version of the library there's a new option, that allows you to perform smart despeckle: textual points (.,;:' ") won't be removed  even if their size is smaller than noise size!

Here you can see the source code in Microsoft Visual C++ of a sample application using the despeckle library:

#include "stdafx.h"
#include "stdio.h"
#include "recodespeckle.c"

int APIENTRY WinMain(HINSTANCE hInstance,
                     HINSTANCE hPrevInstance,
                     LPSTR     lpCmdLine,
                     int       nCmdShow)
{ 	

 // Load dynamically the library
 LoadDespeckleLibrary();

 // Init the session
 int Session= DESPECKLE_Init("demo", "demo");

 long hBitmap;

 // Check if a DIB is available in clipboard
 bool bAvail= IsClipboardFormatAvailable(CF_DIB);

 hBitmap = 0;

 if (bAvail)
  {

   // Open the Clipboard
   ::OpenClipboard(NULL);
		
   // Retrieve the DIB from clipboard 
   hBitmap = (long) GetClipboardData(CF_DIB);

   // Find and removes points of speckle
   long RemovedPoints= DESPECKLE_RemovePoints(Session, (long) hBitmap, 4, 4);

   ::EmptyClipboard();

   // Set the cleaned DIB to clipboard
   SetClipboardData(CF_DIB, (void*)hBitmap);

   // Close the Clipboard	
   ::CloseClipboard();

   char  buffer[200];

   // Format the output message
   if (RemovedPoints!=0)
    sprintf( buffer, "Removed %d points !
      You can paste in your application...", RemovedPoints);

   else

    sprintf( buffer, "Image don't need to be cleaned !");

   // Show the result
   MessageBox(NULL, buffer, "RESULT", MB_OK);
		
  }
 // Show an error message
 else MessageBox(NULL, "Unable to paste DIB", "ERROR", MB_OK);

 // Close the session
 DESPECKLE_Done(Session);

 // Unload the library	
 FreeDespeckleLibrary();

 return 0;
}

Pricing & Ordering Info
The price of this library is 599 EUR. The library is royalties free till 1000 runtimes, so it can be distributed with every end-user application without paying licenses fee: if you need a larger number of runtimes, you have to buy further licenses.
You can order on-line in our e-commerce store or using our contacts page.

Evaluation Version
You can download an evaluation version of this product @ https://www.recogniform.it/downloads/despeckle-sdk.zip.

More Info
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