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BoofCV is an open source Java library for real-time computer vision and robotics applications.

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/*
 * Copyright (c) 2021, 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.factory.transform.wavelet;

import boofcv.struct.border.BorderType;
import boofcv.struct.image.GrayF32;
import boofcv.struct.image.GrayI;
import boofcv.struct.image.ImageGray;
import boofcv.struct.wavelet.WaveletDescription;
import boofcv.struct.wavelet.WlCoef;

/**
 * Creates different wavelet transform by specifying the image type.
 *
 * @author Peter Abeles
 */
@SuppressWarnings({"unchecked"})
public class GFactoryWavelet {

	public static >
	WaveletDescription haar( Class imageType ) {
		if (imageType == GrayF32.class)
			return FactoryWaveletHaar.generate(false, 32);
		else if (GrayI.class.isAssignableFrom(imageType)) {
			return FactoryWaveletHaar.generate(true, 32);
		} else {
			throw new IllegalArgumentException("Image not supported");
		}
	}

	public static >
	WaveletDescription daubJ( Class imageType, int J ) {
		if (imageType == GrayF32.class)
			return (WaveletDescription)FactoryWaveletDaub.daubJ_F32(J);
		else {
			throw new IllegalArgumentException("Image not supported");
		}
	}

	public static >
	WaveletDescription biorthogoal( Class imageType, int J, BorderType borderType ) {
		if (imageType == GrayF32.class)
			return (WaveletDescription)FactoryWaveletDaub.biorthogonal_F32(J, borderType);
		else if (GrayI.class.isAssignableFrom(imageType)) {
			return (WaveletDescription)FactoryWaveletDaub.biorthogonal_I32(J, borderType);
		} else {
			throw new IllegalArgumentException("Image not supported");
		}
	}

	public static >
	WaveletDescription coiflet( Class imageType, int J ) {
		if (imageType == GrayF32.class)
			return (WaveletDescription)FactoryWaveletCoiflet.generate_F32(J);
		else
			throw new IllegalArgumentException("Image not supported");
	}
}