Java BufferedImage Operation setCompressionType(ImageWriteParam param, BufferedImage image)

Description

Sets the ImageIO parameter compression type based on the given image.

License

Apache License

Parameter

Parameter	Description
image	buffered image used to decide compression type
param	ImageIO write parameter to update

Declaration

public static void setCompressionType(ImageWriteParam param, BufferedImage image) 

Method Source Code

//package com.java2s;
/*/*w  ww .  j a va 2  s . c o  m*/
 * 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.
 */

import javax.imageio.ImageWriteParam;

import java.awt.image.BufferedImage;

public class Main {
    /**
     * Sets the ImageIO parameter compression type based on the given image.
     * @param image buffered image used to decide compression type
     * @param param ImageIO write parameter to update
     */
    public static void setCompressionType(ImageWriteParam param, BufferedImage image) {
        // avoid error: first compression type is RLE, not optimal and incorrect for color images
        // TODO expose this choice to the user?
        if (image.getType() == BufferedImage.TYPE_BYTE_BINARY && image.getColorModel().getPixelSize() == 1) {
            param.setCompressionType("CCITT T.6");
        } else {
            param.setCompressionType("LZW");
        }
    }
}

Related

1. setArrayColor(BufferedImage image, int[][] array)
2. setBackgroud(BufferedImage image, Color backgroundColor)
3. setBGRPixels(byte[] bgrPixels, BufferedImage img, int x, int y, int w, int h)
4. setBrightnessFactor(BufferedImage img, float multiple, BufferedImage dest)
5. setColor(BufferedImage image, int x, int y, int[] color, String colorModel)
6. setImageIntPixels(BufferedImage image, boolean allowDeoptimizingDirectRead, IntBuffer pixels)
7. setLockImage(BufferedImage image)
8. setLuminance(BufferedImage image, int x, int y, float value)
9. setPixel(BufferedImage img, int x, int y, int c)