boofcv.gui.image.ImagePyramidPanel Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of visualize Show documentation
BoofCV is an open source Java library for real-time computer vision and robotics applications.
The newest version!
/*
 * Copyright (c) 2011-2016, Peter Abeles. All Rights Reserved.
 *
 * This file is part of BoofCV (http://boofcv.org).
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package boofcv.gui.image;

import boofcv.abst.distort.FDistort;
import boofcv.alg.interpolate.InterpolatePixelS;
import boofcv.factory.interpolate.FactoryInterpolation;
import boofcv.gui.ListDisplayPanel;
import boofcv.io.image.ConvertBufferedImage;
import boofcv.struct.image.ImageGray;
import boofcv.struct.pyramid.ImagePyramid;

import java.awt.*;
import java.awt.image.BufferedImage;


/**
 * Displays an {@link ImagePyramid} by listing each of its layers and showing them one at a time.
 * Each layer can be scaled up to the size of the original layer if desired.
 *
 * @author Peter Abeles
 */
@SuppressWarnings({"unchecked"})
public class ImagePyramidPanel extends ListDisplayPanel {

	// the image pyramid.
	ImagePyramid pyramid;
	// interpolation used for upscaling
	InterpolatePixelS interp;
	// temporary storage for upscaled image
	T upscale;
	// if each layer should be scaled up to the original resolution or not
	boolean scaleUp;

	// show scales or blur factor
	boolean showScales=true;

	public ImagePyramidPanel(ImagePyramid pyramid, boolean scaleUp) {
		set(pyramid,scaleUp);
		render();
		setPreferredSize(new Dimension(pyramid.getWidth(0),pyramid.getHeight(0)));
	}

	public ImagePyramidPanel() {
	}

	public void setShowScales(boolean showScales) {
		this.showScales = showScales;
	}

	public void set(ImagePyramid pyramid, boolean scaleUp) {
		this.pyramid = pyramid;
		this.scaleUp = scaleUp;
	}

	/**
	 * Redraws each layer
	 */
	public void render() {
		reset();

		if( pyramid == null )
			return;

		if( scaleUp ) {
			scaleUpLayers();
		} else {
			doNotScaleLayers();
		}
	}

	private void doNotScaleLayers() {
		int N = pyramid.getNumLayers();

		for( int i = 0; i < N; i++ ) {
			BufferedImage b = ConvertBufferedImage.convertTo(pyramid.getLayer(i),null,true);
			addImage(b,String.format("%5.2f",pyramid.getScale(i)));
		}
	}

	private void scaleUpLayers() {
		T l = pyramid.getLayer(0);
		if( upscale == null ) {
			interp = (InterpolatePixelS) FactoryInterpolation.nearestNeighborPixelS(l.getClass());
			upscale = (T)l.createNew(l.width,l.height);
		} else {
			upscale.reshape(l.width,l.height);
		}

		int N = pyramid.getNumLayers();

		for( int i = 0; i < N; i++ ) {
			new FDistort(pyramid.getLayer(i),upscale).interpNN().scaleExt().apply();
			BufferedImage b = ConvertBufferedImage.convertTo(upscale,null,true);
			if( showScales )
				addImage(b,String.format("%5.2f",pyramid.getScale(i)));
			else
				addImage(b,String.format("%5.2f",pyramid.getSigma(i)));
		}
	}
}