public static Complex Empty { get; }
extern const LTComplex LTComplexZero
public static Complex getEmpty();
Empty # get (Complex)
Represents a new instance of the Complex structure with uninitialized member data.
using Leadtools;
using Leadtools.ImageProcessing;
using Leadtools.Codecs;
using Leadtools.ImageProcessing.Core;
public void FastFourierTransformConstructorExample()
{
// Load an image
RasterCodecs codecs = new RasterCodecs();
codecs.ThrowExceptionsOnInvalidImages = true;
RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, @"ImageProcessingDemo\FourierTransform.jpg"));
// Prepare the command
// Resize the image to make sure the image's dimensions are power of two.
SizeCommand sizeCommand = new SizeCommand(256, 256, RasterSizeFlags.Bicubic);
sizeCommand.Run(image);
FourierTransformInformation ftArray = new FourierTransformInformation(image);
Complex[] data = ftArray.Data;
int width = ftArray.Width;
int height = ftArray.Height;
// Apply FFT.
FastFourierTransformCommand command = new FastFourierTransformCommand();
command.FourierTransformInformation = ftArray;
command.Flags = FastFourierTransformCommandFlags.FastFourierTransform | FastFourierTransformCommandFlags.Gray;
command.Run(image);
LeadRect rcRect = new LeadRect(0, 0, image.Width / 2, image.Height / 2);
FrequencyFilterCommand freqCommand = new FrequencyFilterCommand(ftArray, rcRect, FrequencyFilterCommandFlags.InsideX | FrequencyFilterCommandFlags.OutsideY);
FastFourierTransformCommand invCommand = new FastFourierTransformCommand(ftArray, FastFourierTransformCommandFlags.InverseFastFourierTransform | FastFourierTransformCommandFlags.Gray | FastFourierTransformCommandFlags.Scale |
FastFourierTransformCommandFlags.Both);
invCommand.Run(image);
}
static class LEAD_VARS
{
public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images";
}
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