Java

参考博文：

http://blog.csdn.net/kobejayandy/article/details/44346809

http://blog.csdn.net/shixing_11/article/details/6897871

http://blog.csdn.net/cuihailiang/article/details/52037389

问题现象：

Java上传图片时，对某些图片进行缩放、裁剪或者生成缩略图时会蒙上一层红色，经过检查只要经过ImageIO.read()方法读取后再保存，该图片便已经变成红图。因此，可以推测直接原因在于ImageIO.read()方法加载图片的过程存在问题。

public static BufferedImage getImages(byte[] data) throws IOException {  
        ByteArrayInputStream input = new ByteArrayInputStream(data);  
        return ImageIO.read(input);  
}

经过查阅得知ImageIO.read()方法读取图片时可能存在不正确处理图片ICC信息的问题，ICC为JPEG图片格式中的一种头部信息，导致渲染图片前景色时蒙上一层红色。

解决方案：

1、使用awt Toolkit

不再使用ImageIO.read()方法加载图片，而使用JDK中提供的Image src=Toolkit.getDefaultToolkit().getImage

Image src = Toolkit.getDefaultToolkit().getImage(file.getPath());  
BufferedImage image = BufferedImageBuilder.toBufferedImage(src);//Image to BufferedImage

或者Toolkit.getDefaultToolkit().createImage

Image imageTookit = Toolkit.getDefaultToolkit().createImage(bytes);  
BufferedImage cutImage = BufferedImageBuilder.toBufferedImage(imageTookit);  

BufferedImageBuilder源码：

public static BufferedImage toBufferedImage(Image image) {  
        if (image instanceof BufferedImage) {  
            return (BufferedImage) image;  
        }  
        // This code ensures that all the pixels in the image are loaded  
        image = new ImageIcon(image).getImage();  
        BufferedImage bimage = null;  
        GraphicsEnvironment ge = GraphicsEnvironment  
                .getLocalGraphicsEnvironment();  
        try {  
            int transparency = Transparency.OPAQUE;  
            GraphicsDevice gs = ge.getDefaultScreenDevice();  
            GraphicsConfiguration gc = gs.getDefaultConfiguration();  
            bimage = gc.createCompatibleImage(image.getWidth(null),  
                    image.getHeight(null), transparency);  
        } catch (HeadlessException e) {  
            // The system does not have a screen  
        }  
        if (bimage == null) {  
            // Create a buffered image using the default color model  
            int type = BufferedImage.TYPE_INT_RGB;  
            bimage = new BufferedImage(image.getWidth(null),  
                    image.getHeight(null), type);  
        }  
        // Copy image to buffered image  
        Graphics g = bimage.createGraphics();  
        // Paint the image onto the buffered image  
        g.drawImage(image, 0, 0, null);  
        g.dispose();  
        return bimage;  
    }

如果该方法在Windows平台下使用正常，而在Linux平台上总是报异常，这种解决方式可以参考：http://blog.csdn.net/shixing_11/article/details/6897871/

2、使用阿里巴巴的SImpleImage

主要依赖以下jar包：commons-io-2.4.jar、commons-lang.jar、commons-logging-1.1.1.jar、jai_codec-1.1.3.jar、jai_core-1.1.3.jar
SimpleImage github地址：https://github.com/alibaba/simpleimage
相关jar包下载：http://download.csdn.net/detail/asd1231510/8911263

测试代码：

package com.sup.test;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;

import org.apache.commons.io.IOUtils;

import com.alibaba.simpleimage.ImageRender;
import com.alibaba.simpleimage.SimpleImageException;
import com.alibaba.simpleimage.render.ReadRender;
import com.alibaba.simpleimage.render.ScaleParameter;
import com.alibaba.simpleimage.render.ScaleRender;
import com.alibaba.simpleimage.render.WriteRender;

public class Example {

    public static void compressPicAlibaba (String srcFilePath, String descFilePath) {
        File in = new File(srcFilePath);      //原图片  
        File out = new File(descFilePath);       //目的图片  
        ScaleParameter scaleParam = new ScaleParameter();
           
        FileInputStream inStream = null;  
        FileOutputStream outStream = null;  
        WriteRender wr = null;  
        try {  
            inStream = new FileInputStream(in);  
            outStream = new FileOutputStream(out);  
            ImageRender rr = new ReadRender(inStream);  
            ImageRender sr = new ScaleRender(rr, scaleParam);  
            wr = new WriteRender(sr, outStream);  
           
            wr.render();                            //触发图像处理  
        } catch(Exception e) {  
            e.printStackTrace();  
        } finally {  
            IOUtils.closeQuietly(inStream);         //图片文件输入输出流必须记得关闭  
            IOUtils.closeQuietly(outStream);  
            if (wr != null) {  
                try {  
                    wr.dispose();                   //释放simpleImage的内部资源  
                } catch (SimpleImageException ignore) {  
                    // skip ...   
                }  
            }  
        }  
    }
    
    public static void main(String[] args) {
        
        String srcFilePath = "F:\qw.jpg";
        String descFilePath = "F:\qw2.jpg";
        compressPicAlibaba(srcFilePath, descFilePath);
        
    }

}