public SpatialFilterCommand(
int divisor,
int bias,
int[] matrix
)
- (instancetype)initWithDivisor:(NSInteger)divisor bias:(NSInteger)bias matrix:(nullable NSArray<NSNumber *> *)matrix NS_DESIGNATED_INITIALIZER;
divisor
Number used to divide the sum of weighted values.
bias
Number added to the weighted average.
matrix
The array of weighting factors. The factors apply to pixels in the neighborhood read left to right and top to bottom, as shown below:
Run the SpatialFilterCommand on an image.
using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing.Effects;
public void SpatialFilterConstructorExample_S2()
{
// Load an image
RasterCodecs codecs = new RasterCodecs();
codecs.ThrowExceptionsOnInvalidImages = true;
RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "ImageProcessingDemo\\NaturalFruits.jpg"));
// Prepare the command
SpatialFilterCommand command1 = new SpatialFilterCommand(SpatialFilterCommandPredefined.EmbossSouth);
int[] data = command1.Matrix;
SpatialFilterCommand command = new SpatialFilterCommand(command1.Divisor, command1.Bias, data);
//Apply the filter.
command.Run(image);
}
static class LEAD_VARS
{
public const string ImagesDir = @"C:\LEADTOOLS23\Resources\Images";
}
import java.io.File;
import java.io.IOException;
import org.junit.*;
import org.junit.runner.JUnitCore;
import org.junit.runner.Result;
import org.junit.runner.notification.Failure;
import static org.junit.Assert.assertTrue;
import leadtools.*;
import leadtools.codecs.*;
import leadtools.imageprocessing.effects.*;
public void spatialFilterConstructorExample_S2() {
final String LEAD_VARS_IMAGES_DIR = "C:\\LEADTOOLS23\\Resources\\Images";
// Load an image
RasterCodecs codecs = new RasterCodecs();
codecs.setThrowExceptionsOnInvalidImages(true);
RasterImage image = codecs.load(combine(LEAD_VARS_IMAGES_DIR, "NaturalFruits.jpg"));
// Prepare the command
SpatialFilterCommand command1 = new SpatialFilterCommand(SpatialFilterCommandPredefined.EMBOSS_SOUTH);
int[] data = command1.getMatrix();
SpatialFilterCommand command = new SpatialFilterCommand(command1.getDivisor(), command1.getBias(), data);
// Apply the filter.
int change = command.run(image);
assertTrue(change != RasterImageChangedFlags.NONE);
// Save the image
String outputFileName = combine(LEAD_VARS_IMAGES_DIR, "NaturalFruits2.jpg");
codecs.save(image, outputFileName, RasterImageFormat.JPEG, 0);
System.out.println("Command run, file saved to " + outputFileName);
}
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