public class BlankPageDetectorCommand : RasterCommand
@interface LTBlankPageDetectorCommand : LTRasterCommand
public class BlankPageDetectorCommand
extends RasterCommand
public ref class BlankPageDetectorCommand : public RasterCommand
class BlankPageDetectorCommand(RasterCommand):
For various reasons, documents being scanned can contain a significant number of blank pages. Disk storage space for the scanned items can be reduced if such pages can be removed before the documents are stored. This command detects whether a page is blank and returns an accuracy value. It can detect blank pages (despite noise, bleed-through, or lines) with high precision and speed.
Blank Page Function - Before
Blank Page Function - After
View additional platform support for this Blank Page function.
Runs the BlankPageDetectorCommand on an image and determines whether it is blank.
using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing.Core;
public void BlankPageDetectorCommandExample()
{
// Load an image
RasterCodecs codecs = new RasterCodecs();
codecs.ThrowExceptionsOnInvalidImages = true;
RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Clean.tif"));
// Prepare the command
BlankPageDetectorCommand command = new BlankPageDetectorCommand();
//Determine whether the image is a blank page
command.Flags = BlankPageDetectorCommandFlags.DetectNoisyPage;
command.Run(image);
MessageBox.Show(" Is Blank : " + command.IsBlank + "\n Accuracy : " + (command.Accuracy * 1.0 / 100) + "%", "Blank Page Detection Results");
}
static class LEAD_VARS
{
public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images";
}
BlankPageDetectorCommand Members
Leadtools.ImageProcessing.Core Namespace
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