Here you can find the source of rotateBufferedImage(BufferedImage bufferedImage, double angle)
public static BufferedImage rotateBufferedImage(BufferedImage bufferedImage, double angle)
//package com.java2s; /**/*from ww w . j a va 2s . c om*/ * Copyright 2009 Atsuya Takagi * * 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. */ import java.awt.geom.AffineTransform; import java.awt.image.AffineTransformOp; import java.awt.image.BufferedImage; public class Main { public static BufferedImage rotateBufferedImage(BufferedImage bufferedImage, double angle) { BufferedImage bufferedImageFixed = new BufferedImage(bufferedImage.getWidth(), bufferedImage.getHeight(), bufferedImage.getType()); AffineTransform at = new AffineTransform(); at.rotate(angle, (bufferedImage.getWidth() / 2.0), (bufferedImage.getHeight() / 2.0)); AffineTransformOp ato = new AffineTransformOp(at, AffineTransformOp.TYPE_BILINEAR); ato.filter(bufferedImage, bufferedImageFixed); return bufferedImageFixed; } }