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Java example source code file (DstNormalization.java)
The DstNormalization.java Java example source code/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You 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 org.apache.commons.math3.transform; /** * This enumeration defines the various types of normalizations that can be * applied to discrete sine transforms (DST). The exact definition of these * normalizations is detailed below. * * @see FastSineTransformer * @since 3.0 */ public enum DstNormalization { /** * Should be passed to the constructor of {@link FastSineTransformer} to * use the <em>standard normalization convention. The standard DST-I * normalization convention is defined as follows * <ul> * <li>forward transform: yn = ?k=0N-1 * x<sub>k sin(? nk / N), * <li>inverse transform: xk = (2 / N) * ?<sub>n=0N-1 yn sin(? nk / N), * </ul> * where N is the size of the data sample, and x<sub>0 = 0. */ STANDARD_DST_I, /** * Should be passed to the constructor of {@link FastSineTransformer} to * use the <em>orthogonal normalization convention. The orthogonal * DCT-I normalization convention is defined as follows * <ul> * <li>Forward transform: yn = √(2 / N) * ?<sub>k=0N-1 xk sin(? nk / N), * <li>Inverse transform: xk = √(2 / N) * ?<sub>n=0N-1 yn sin(? nk / N), * </ul> * which makes the transform orthogonal. N is the size of the data sample, * and x<sub>0 = 0. */ ORTHOGONAL_DST_I } Other Java examples (source code examples)Here is a short list of links related to this Java DstNormalization.java source code file: |
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