Java - 處理某些圖片泛紅

參考博文：

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

問題現象：

Java上傳圖片時，對某些圖片進行縮放、裁剪或者生成縮略圖時會蒙上一層紅色，通過檢查只要通過ImageIO.read()方法讀取後再保存，該圖片便已經變成紅圖。所以，能夠推測直接緣由在於ImageIO.read()方法加載圖片的過程存在問題。

1 public static BufferedImage getImages(byte[] data) throws IOException {  
2         ByteArrayInputStream input = new ByteArrayInputStream(data);  
3         return ImageIO.read(input);  
4 }

通過查閱得知ImageIO.read()方法讀取圖片時可能存在不正確處理圖片ICC信息的問題，ICC爲JPEG圖片格式中的一種頭部信息，致使渲染圖片前景色時蒙上一層紅色。

解決方案：

一、使用awt Toolkit

再也不使用ImageIO.read()方法加載圖片，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

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

BufferedImageBuilder源碼：

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;  
    }

若是該方法在Windows平臺下使用正常，而在Linux平臺上老是報異常，這種解決方式能夠參考：http://blog.csdn.net/shixing_11/article/details/6897871/

二、使用阿里巴巴的SImpleImage

主要依賴如下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
相關jar包下載：http://download.csdn.net/detail/asd1231510/8911263

測試代碼：

 1 package com.sup.test;
 2 
 3 import java.io.File;
 4 import java.io.FileInputStream;
 5 import java.io.FileOutputStream;
 6 
 7 import org.apache.commons.io.IOUtils;
 8 
 9 import com.alibaba.simpleimage.ImageRender;
10 import com.alibaba.simpleimage.SimpleImageException;
11 import com.alibaba.simpleimage.render.ReadRender;
12 import com.alibaba.simpleimage.render.ScaleParameter;
13 import com.alibaba.simpleimage.render.ScaleRender;
14 import com.alibaba.simpleimage.render.WriteRender;
15 
16 public class Example {
17 
18     public static void compressPicAlibaba (String srcFilePath, String descFilePath) {
19         File in = new File(srcFilePath);      //原圖片  
20         File out = new File(descFilePath);       //目的圖片  
21         ScaleParameter scaleParam = new ScaleParameter();
22            
23         FileInputStream inStream = null;  
24         FileOutputStream outStream = null;  
25         WriteRender wr = null;  
26         try {  
27             inStream = new FileInputStream(in);  
28             outStream = new FileOutputStream(out);  
29             ImageRender rr = new ReadRender(inStream);  
30             ImageRender sr = new ScaleRender(rr, scaleParam);  
31             wr = new WriteRender(sr, outStream);  
32            
33             wr.render();                            //觸發圖像處理  
34         } catch(Exception e) {  
35             e.printStackTrace();  
36         } finally {  
37             IOUtils.closeQuietly(inStream);         //圖片文件輸入輸出流必須記得關閉  
38             IOUtils.closeQuietly(outStream);  
39             if (wr != null) {  
40                 try {  
41                     wr.dispose();                   //釋放simpleImage的內部資源  
42                 } catch (SimpleImageException ignore) {  
43                     // skip ...   
44                 }  
45             }  
46         }  
47     }
48     
49     public static void main(String[] args) {
50         
51         String srcFilePath = "F:\\qw.jpg";
52         String descFilePath = "F:\\qw2.jpg";
53         compressPicAlibaba(srcFilePath, descFilePath);
54         
55     }
56 
57 }