調整圖像用java Scalr，不正確的輸出圖像，灰色

Question

可能重複：
Resize an image in Java - Any Open Source Library?

我希望我能剛好在拍攝前調整圖像大小！我嘗試了幾次，但沒有成功。你能告訴我程序嗎？我想使用imgscarlr或更好。謝謝

private static void getImages(String src,String Name) throws IOException { 

    String folder = null; 

    //Exctract the name of the image from the src attribute 
    int indexname = src.lastIndexOf("/"); 


    if (indexname == src.length()) { 
     src = src.substring(1, indexname); 
    } 

    indexname = src.lastIndexOf("/"); 
    String name = src.substring(indexname, src.length()); 

    System.out.println(name); 

    //Open a URL Stream 
    URL url = new URL(src); 
    InputStream in = url.openStream(); 

    OutputStream out = new BufferedOutputStream(new FileOutputStream(folderPath+ name)); 

    for (int b; (b = in.read()) != -1;) { 

     out.write(b); 
    } 


    BufferedImage originalImage = ImageIO.read(new File(folderPath+name)); 
    BufferedImage scaledImage = Scalr.resize(originalImage, 200); 
    ImageIO.write(scaledImage, "jpg", new File(folderPath+name)); 
    } 
    } 

我沒事，但根據圖片，我有一個問題，採樣的灰色部分！

Answer 1

你需要「負荷」形象第一，看看ImageIO API的更多詳細信息，在那之後，根據您的需要，這是比較簡單的圖像縮放到

UPDATE

Reading image from URL

Image scaling API

Multi-step, hi-quality scaling

Answer 2

我忘了out.close();現在它的工作