2 Document Clean-up
Scanned documents often contain undesired elements, such as specks, dots, black borders, lines, and hole-punch marks. LEADTOOLS provides powerful functions that can clean up documents by detecting and removing these elements. Each function supplies a "hook" into the API decision-making process, allowing you to obtain information about every detected element—and use that information to tailor the function to meet your needs.
Each function can also optionally return a region corresponding to any proposed changes, allowing for end-user preview capabilities. These features, along with the deskew, dilation, erosion, min and max filters give LEADTOOLS Document Imaging SDK the power and flexibility you need when working with scanned documents.
Each function or method also takes a number of parameters that control the performance of the corresponding removal process. Included in the parameters is a set of flags that allows you to obtain a LEAD region or a Windows region that contains all the elements removed from a document. For each element found by one of the removal methods, a corresponding event is triggered. These events provide a means of customizing the removal process, as well as creating your composite of the removed regions.
Getting Started with Document Cleanup