{"id":527,"date":"2008-08-28T00:00:00","date_gmt":"2008-08-27T16:00:00","guid":{"rendered":"http:\/\/www.strongd.net\/?p=527"},"modified":"2011-07-15T09:18:35","modified_gmt":"2011-07-15T01:18:35","slug":"%e5%8f%a6%e7%b1%bb%e5%8a%a0%e6%b0%b4%e5%8d%b0%e2%80%94%e2%80%94%e6%a0%b9%e6%8d%ae%e6%98%8e%e6%9a%97%e5%ba%a6%e5%88%86%e5%88%ab%e5%8a%a0%e4%b8%8d%e5%90%8c%e7%9a%84%e6%b0%b4%e5%8d%b0","status":"publish","type":"post","link":"https:\/\/www.strongd.net\/?p=527","title":{"rendered":"\u53e6\u7c7b\u52a0\u6c34\u5370\u2014\u2014\u6839\u636e\u660e\u6697\u5ea6\u5206\u522b\u52a0\u4e0d\u540c\u7684\u6c34\u5370"},"content":{"rendered":"


    \n
  1. package<\/FONT><\/STRONG><\/SPAN> image;   <\/SPAN><\/SPAN><\/LI>
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  2.   <\/SPAN><\/LI>
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  3. <\/SPAN>import<\/FONT><\/STRONG><\/SPAN> java.awt.AlphaComposite;   <\/SPAN><\/SPAN><\/LI>
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  4. <\/SPAN>import<\/FONT><\/STRONG><\/SPAN> java.awt.Color;   <\/SPAN><\/SPAN><\/LI>
    \n
  5. <\/SPAN>import<\/FONT><\/STRONG><\/SPAN> java.awt.Font;   <\/SPAN><\/SPAN><\/LI>
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  6. <\/SPAN>import<\/FONT><\/STRONG><\/SPAN> java.awt.Graphics;   <\/SPAN><\/SPAN><\/LI>
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  7. <\/SPAN>import<\/FONT><\/STRONG><\/SPAN> java.awt.Graphics2D;   <\/SPAN><\/SPAN><\/LI>
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  8. <\/SPAN>import<\/FONT><\/STRONG><\/SPAN> java.awt.Image;   <\/SPAN><\/SPAN><\/LI>
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  9. <\/SPAN>import<\/FONT><\/STRONG><\/SPAN> java.awt.image.BufferedImage;   <\/SPAN><\/SPAN><\/LI>
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  10. <\/SPAN>import<\/FONT><\/STRONG><\/SPAN> java.awt.image.ColorModel;   <\/SPAN><\/SPAN><\/LI>
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  11. <\/SPAN>import<\/FONT><\/STRONG><\/SPAN> java.awt.image.PixelGrabber;   <\/SPAN><\/SPAN><\/LI>
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  12. <\/SPAN>import<\/FONT><\/STRONG><\/SPAN> java.io.File;   <\/SPAN><\/SPAN><\/LI>
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  13. <\/SPAN>import<\/FONT><\/STRONG><\/SPAN> java.io.FileOutputStream;   <\/SPAN><\/SPAN><\/LI>
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  14.   <\/SPAN><\/LI>
    \n
  15. <\/SPAN>import<\/FONT><\/STRONG><\/SPAN> javax.imageio.ImageIO;   <\/SPAN><\/SPAN><\/LI>
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  16.   <\/SPAN><\/LI>
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  17. <\/SPAN>import<\/FONT><\/STRONG><\/SPAN> com.sun.image.codec.jpeg.JPEGCodec;   <\/SPAN><\/SPAN><\/LI>
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  18. <\/SPAN>import<\/FONT><\/STRONG><\/SPAN> com.sun.image.codec.jpeg.JPEGImageEncoder;   <\/SPAN><\/SPAN><\/LI>
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  19.   <\/SPAN><\/LI>
    \n
  20. <\/SPAN>public<\/FONT><\/STRONG><\/SPAN> <\/SPAN>class<\/FONT><\/STRONG><\/SPAN> WaterMark {   <\/SPAN><\/SPAN><\/LI>
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  21.   <\/SPAN><\/LI>
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  22.     <\/SPAN>\/** <\/FONT><\/SPAN> <\/SPAN><\/LI>
    \n
  23.      * \u83b7\u53d6\u6307\u5b9a\u77e9\u5f62\u4e2d\u7684\u50cf\u7d20\u7684\u77e9\u9635 <\/FONT><\/SPAN> <\/SPAN><\/LI>
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  24.      *  <\/FONT><\/SPAN> <\/SPAN><\/LI>
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  25.      * @param imageSrc <\/FONT><\/SPAN> <\/SPAN><\/LI>
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  26.      * @param startX <\/FONT><\/SPAN> <\/SPAN><\/LI>
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  27.      * @param startY <\/FONT><\/SPAN> <\/SPAN><\/LI>
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  28.      * @param w <\/FONT><\/SPAN> <\/SPAN><\/LI>
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  29.      * @param h <\/FONT><\/SPAN> <\/SPAN><\/LI>
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  30.      * @return <\/FONT><\/SPAN> <\/SPAN><\/LI>
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  31.      *\/<\/FONT><\/SPAN>  <\/SPAN><\/SPAN><\/LI>
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  32.     <\/SPAN>private<\/FONT><\/STRONG><\/SPAN> <\/SPAN>int<\/FONT><\/STRONG><\/SPAN>[] getPixArray(Image imageSrc, <\/SPAN>int<\/FONT><\/STRONG><\/SPAN> startX, <\/SPAN>int<\/FONT><\/STRONG><\/SPAN> startY,   <\/SPAN><\/SPAN><\/LI>
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  33.             <\/SPAN>int<\/FONT><\/STRONG><\/SPAN> w, <\/SPAN>int<\/FONT><\/STRONG><\/SPAN> h) {   <\/SPAN><\/SPAN><\/LI>
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  34.         <\/SPAN>int<\/FONT><\/STRONG><\/SPAN>[] pix = <\/SPAN>new<\/FONT><\/STRONG><\/SPAN> <\/SPAN>int<\/FONT><\/STRONG><\/SPAN>[(w – startX) * (h – startY)];   <\/SPAN><\/SPAN><\/LI>
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  35.            <\/SPAN><\/LI>
    \n
  36.         <\/SPAN>\/*\u4e0b\u9762\u662f\u522b\u4eba\u7a0b\u5e8f\u4e2d\u7684\u4e00\u6bb5,\u6211\u5b9e\u5728\u4e0d\u660e\u767d\u4e3a\u4f55\u8981\u52a0\u8fd9\u4e00\u6bb5,\u56e0\u4e3a\u6211\u53bb\u6389\u4e5f\u6ca1\u6709\u95ee\u9898,\u52a0\u4e0a\u8fd8\u4f1a\u62a5\u9519*\/<\/FONT><\/SPAN>  <\/SPAN><\/SPAN><\/LI>
    \n
  37.         PixelGrabber pg = <\/SPAN>null<\/FONT><\/STRONG><\/SPAN>;   <\/SPAN><\/SPAN><\/LI>
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  38.         <\/SPAN>try<\/FONT><\/STRONG><\/SPAN> {   <\/SPAN><\/SPAN><\/LI>
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  39.             pg = <\/SPAN>new<\/FONT><\/STRONG><\/SPAN> PixelGrabber(imageSrc, startX, startY, w-startX, h-startY, pix, <\/SPAN>0<\/FONT><\/SPAN>, w);   <\/SPAN><\/SPAN><\/LI>
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  40.             <\/SPAN>if<\/FONT><\/STRONG><\/SPAN> (pg.grabPixels() != <\/SPAN>true<\/FONT><\/STRONG><\/SPAN>) {   <\/SPAN><\/SPAN><\/LI>
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  41.                 <\/SPAN>try<\/FONT><\/STRONG><\/SPAN> {   <\/SPAN><\/SPAN><\/LI>
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  42.                     <\/SPAN>throw<\/FONT><\/STRONG><\/SPAN> <\/SPAN>new<\/FONT><\/STRONG><\/SPAN> java.awt.AWTException(<\/SPAN>“pg error”<\/FONT><\/SPAN> + pg.status());   <\/SPAN><\/SPAN><\/LI>
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  43.                 } <\/SPAN>catch<\/FONT><\/STRONG><\/SPAN> (Exception eq) {   <\/SPAN><\/SPAN><\/LI>
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  44.                     eq.printStackTrace();   <\/SPAN><\/LI>
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  45.                 }   <\/SPAN><\/LI>
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  46.             }   <\/SPAN><\/LI>
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  47.         } <\/SPAN>catch<\/FONT><\/STRONG><\/SPAN> (Exception ex) {   <\/SPAN><\/SPAN><\/LI>
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  48.             ex.printStackTrace();   <\/SPAN><\/LI>
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  49.         }   <\/SPAN><\/LI>
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  50.         <\/SPAN>return<\/FONT><\/STRONG><\/SPAN> pix;   <\/SPAN><\/SPAN><\/LI>
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  51.     }   <\/SPAN><\/LI>
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  52.   <\/SPAN><\/LI>
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  53.     <\/SPAN>\/** <\/FONT><\/SPAN> <\/SPAN><\/LI>
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  54.      * \u5c061\u5f20\u56fe\u7247\u548c\u53e61\u5f20\u56fe\u7247\u7684\u6307\u5b9a\u533a\u57df\u91cd\u5408\u3002\u53ef\u7528\u4e8e\u5236\u4f5c\u6c34\u5370\u3002\u56fe\u7247\u7684\u5de6\u4e0a\u89d2\u5750\u6807\u4e3a0\uff0c0 <\/FONT><\/SPAN> <\/SPAN><\/LI>
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  55.      *  <\/FONT><\/SPAN> <\/SPAN><\/LI>
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  56.      * @param lightnessWaterImg <\/FONT><\/SPAN> <\/SPAN><\/LI>
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  57.      *            \u989c\u8272\u6bd4\u8f83\u4eae\u7684\u6c34\u5370\u56fe\u7247\uff0c\u9002\u5408\u5e95\u8272\u6bd4\u8f83\u6697\u7684\u60c5\u51b5 <\/FONT><\/SPAN> <\/SPAN><\/LI>
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  58.      * @param darknessWaterImg <\/FONT><\/SPAN> <\/SPAN><\/LI>
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  59.      *            \u989c\u8272\u6bd4\u8f83\u6697\u7684\u6c34\u5370\u56fe\u7247\uff0c\u9002\u5408\u5e95\u8272\u6bd4\u8f83\u4eae\u7684\u60c5\u51b5,\u5982\u679c\u4e0d\u60f3\u533a\u5206\uff0c\u5219\u8f93\u5165null\uff0c\u5e73\u5747\u7070\u5ea6\u8fb9\u754c\u540c\u65f6\u5931\u6548\u3002 <\/FONT><\/SPAN> <\/SPAN><\/LI>
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  60.      * @param targetImg <\/FONT><\/SPAN> <\/SPAN><\/LI>
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  61.      *            \u6e90\u56fe\u7247 <\/FONT><\/SPAN> <\/SPAN><\/LI>
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  62.      * @param startX <\/FONT><\/SPAN> <\/SPAN><\/LI>
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  63.      * @param startY <\/FONT><\/SPAN> <\/SPAN><\/LI>
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  64.      * @param x <\/FONT><\/SPAN> <\/SPAN><\/LI>
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  65.      * @param y <\/FONT><\/SPAN> <\/SPAN><\/LI>
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  66.      * @param alpha <\/FONT><\/SPAN> <\/SPAN><\/LI>
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  67.      *            \u900f\u660e\u5ea6,0f\u4e3a\u5168\u900f\u660e,1f\u4e3a\u5b8c\u5168\u4e0d\u900f\u660e,0.5f\u4e3a\u534a\u900f\u660e <\/FONT><\/SPAN> <\/SPAN><\/LI>
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  68.      * @param averageGray <\/FONT><\/SPAN> <\/SPAN><\/LI>
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  69.      *            \u5e73\u5747\u7070\u5ea6\u8fb9\u754c\uff080-255\uff09\uff0c\u5927\u4e8e\u6b64\u503c\uff0c\u5219\u6253\u6697\u7684\u6c34\u5370\u56fe\u7247\uff0c\u5c0f\u4e8e\u6b64\u503c\u5219\u6253\u4eae\u7684\u6c34\u5370\u56fe\u7247\u3002 <\/FONT><\/SPAN> <\/SPAN><\/LI>
    \n
  70.      *            \u9ed8\u8ba4\u503c128\u3002\u8d85\u8fc7\u8303\u56f4\uff0c\u6309\u9ed8\u8ba4\u503c\u8fdb\u884c\u3002 <\/FONT><\/SPAN> <\/SPAN><\/LI>
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  71.      *\/<\/FONT><\/SPAN>  <\/SPAN><\/SPAN><\/LI>
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  72.     <\/SPAN>private<\/FONT><\/STRONG><\/SPAN> <\/SPAN>final<\/FONT><\/STRONG><\/SPAN> <\/SPAN>void<\/FONT><\/STRONG><\/SPAN> pressImage(String lightnessWaterImg,   <\/SPAN><\/SPAN><\/LI>
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  73.             String darknessWaterImg, String targetImg, <\/SPAN>int<\/FONT><\/STRONG><\/SPAN> startX, <\/SPAN>int<\/FONT><\/STRONG><\/SPAN> startY,   <\/SPAN><\/SPAN><\/LI>
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  74.             <\/SPAN>int<\/FONT><\/STRONG><\/SPAN> x, <\/SPAN>int<\/FONT><\/STRONG><\/SPAN> y, <\/SPAN>float<\/FONT><\/STRONG><\/SPAN> alpha, <\/SPAN>float<\/FONT><\/STRONG><\/SPAN> averageGray) {   <\/SPAN><\/SPAN><\/LI>
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  75.         <\/SPAN>try<\/FONT><\/STRONG><\/SPAN> {   <\/SPAN><\/SPAN><\/LI>
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  76.             <\/SPAN>\/\/ \u5148\u5224\u65ad\u4eae\u6c34\u5370\u548c\u6e90\u6587\u4ef6\u7684\u503c\u662f\u5426\u4e3anull\uff0c\u5426\u5219\u629b\u51fa\u5f02\u5e38 <\/FONT><\/SPAN>  <\/SPAN><\/SPAN><\/LI>
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  77.             <\/SPAN>if<\/FONT><\/STRONG><\/SPAN> (lightnessWaterImg == <\/SPAN>null<\/FONT><\/STRONG><\/SPAN> || lightnessWaterImg == <\/SPAN>“”<\/FONT><\/SPAN>  <\/SPAN><\/SPAN><\/LI>
    \n
  78.                     || targetImg == <\/SPAN>null<\/FONT><\/STRONG><\/SPAN> || targetImg == <\/SPAN>“”<\/FONT><\/SPAN>) {   <\/SPAN><\/SPAN><\/LI>
    \n
  79.                 <\/SPAN>throw<\/FONT><\/STRONG><\/SPAN> <\/SPAN>new<\/FONT><\/STRONG><\/SPAN> Exception(<\/SPAN>“\u4eae\u6c34\u5370\u6216\u8005\u6e90\u56fe\u7247\u7684\u5730\u5740\u4e0d\u80fd\u4e3a\u7a7a”<\/FONT><\/SPAN>);   <\/SPAN><\/SPAN><\/LI>
    \n
  80.             }    <\/SPAN><\/LI>
    \n
  81.             <\/SPAN>\/\/ \u518d\u5224\u65ad\u5e73\u5747\u7070\u5ea6\u8fb9\u754c\u662f\u5426\u8d8a\u754c <\/FONT><\/SPAN>  <\/SPAN><\/SPAN><\/LI>
    \n
  82.             <\/SPAN>if<\/FONT><\/STRONG><\/SPAN> (averageGray><\/SPAN>255<\/FONT><\/SPAN>||averageGray<<\/SPAN>0<\/FONT><\/SPAN>) {   <\/SPAN><\/SPAN><\/LI>
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  83.                 averageGray = <\/SPAN>128<\/FONT><\/SPAN>;   <\/SPAN><\/SPAN><\/LI>
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  84.             }   <\/SPAN><\/LI>
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  85.                <\/SPAN><\/LI>
    \n
  86.   <\/SPAN><\/LI>
    \n
  87.             <\/SPAN>\/\/ \u88c5\u8f7d\u6e90\u56fe\u7247 <\/FONT><\/SPAN>  <\/SPAN><\/SPAN><\/LI>
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  88.             File _file = <\/SPAN>new<\/FONT><\/STRONG><\/SPAN> File(targetImg);   <\/SPAN><\/SPAN><\/LI>
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  89.             <\/SPAN>\/\/ \u56fe\u7247\u88c5\u5165\u5185\u5b58 <\/FONT><\/SPAN>  <\/SPAN><\/SPAN><\/LI>
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  90.             BufferedImage src = ImageIO.read(_file);   <\/SPAN><\/LI>
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  91.             <\/SPAN>\/\/ \u83b7\u53d6\u56fe\u7247\u7684\u5c3a\u5bf8 <\/FONT><\/SPAN>  <\/SPAN><\/SPAN><\/LI>
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  92.             <\/SPAN>int<\/FONT><\/STRONG><\/SPAN> width = src.getWidth(<\/SPAN>null<\/FONT><\/STRONG><\/SPAN>);   <\/SPAN><\/SPAN><\/LI>
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  93.             <\/SPAN>int<\/FONT><\/STRONG><\/SPAN> height = src.getHeight(<\/SPAN>null<\/FONT><\/STRONG><\/SPAN>);   <\/SPAN><\/SPAN><\/LI>
    \n
  94.             <\/SPAN>\/\/ \u6839\u636e\u6e90\u56fe\u7247\u5c3a\u5bf8\uff0c\u8bbe\u7f6e\u9884\u88c5\u8f7d\u7684\u4e00\u4e2a\u56fe\u7247\uff0c\u9ed8\u8ba4\u662fRGB\u683c\u5f0f\u7684 <\/FONT><\/SPAN>  <\/SPAN><\/SPAN><\/LI>
    \n
  95.             BufferedImage image = <\/SPAN>new<\/FONT><\/STRONG><\/SPAN> BufferedImage(width, height,   <\/SPAN><\/SPAN><\/LI>
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  96.                     BufferedImage.TYPE_INT_RGB);   <\/SPAN><\/LI>
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  97.             Graphics2D graphics = image.createGraphics();   <\/SPAN><\/LI>
    \n
  98.             <\/SPAN>\/\/ \u7ed8\u5236\u5185\u5b58\u4e2d\u7684\u6e90\u56fe\u7247\u81f3\u6307\u5b9a\u7684\u77e9\u5f62\u5185 <\/FONT><\/SPAN>  <\/SPAN><\/SPAN><\/LI>
    \n
  99.             graphics.drawImage(src, <\/SPAN>0<\/FONT><\/SPAN>, <\/SPAN>0<\/FONT><\/SPAN>, width, height, <\/SPAN>null<\/FONT><\/STRONG><\/SPAN>);   <\/SPAN><\/SPAN><\/LI>
    \n
  100.             <\/SPAN>\/\/ \u5728\u5df2\u7ecf\u7ed8\u5236\u7684\u56fe\u7247\u4e2d\u52a0\u5165\u900f\u660e\u5ea6\u901a\u9053 <\/FONT><\/SPAN>  <\/SPAN><\/SPAN><\/LI>
    \n
  101.             graphics.setComposite(AlphaComposite.getInstance(   <\/SPAN><\/LI>
    \n
  102.                     AlphaComposite.SRC_ATOP, alpha));   <\/SPAN><\/LI>
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  103.                <\/SPAN><\/LI>
    \n
  104.   <\/SPAN><\/LI>
    \n
  105.             <\/SPAN>\/\/ \u83b7\u53d6\u6e90\u56fe\u7247\u4e2d\u548c\u8bbe\u5b9a\u7684\u540c\u6837\u5927\u5c0f\u7684\u533a\u57df\u5185\u7684\u50cf\u7d20\u96c6\u5408 <\/FONT><\/SPAN>  <\/SPAN><\/SPAN><\/LI>
    \n
  106.             <\/SPAN>int<\/FONT><\/STRONG><\/SPAN>[] pixels = getPixArray(src, startX, startY, x, y);   <\/SPAN><\/SPAN><\/LI>
    \n
  107.   <\/SPAN><\/LI>
    \n
  108.             <\/SPAN>\/\/\u67e5\u8be2\u6b64\u96c6\u5408\u7684\u5e73\u5747\u7070\u5ea6 <\/FONT><\/SPAN>  <\/SPAN><\/SPAN><\/LI>
    \n
  109.             <\/SPAN>float<\/FONT><\/STRONG><\/SPAN> average = getAverageGrap(x-startX,y-startY,pixels);   <\/SPAN><\/SPAN><\/LI>
    \n
  110.   <\/SPAN><\/LI>
    \n
  111.             <\/SPAN>\/\/ \u5982\u679c\u5e73\u5747\u7070\u5ea6\u5927\u4e8e130,\u5219\u8bf4\u660e\u6b64\u533a\u57df\u6bd4\u8f83\u4eae\uff0c\u5426\u5219\u5219\u6bd4\u8f83\u6697 <\/FONT><\/SPAN>  <\/SPAN><\/SPAN><\/LI>
    \n
  112.             System.out.println(average);   <\/SPAN><\/LI>
    \n
  113.   <\/SPAN><\/LI>
    \n
  114.                <\/SPAN><\/LI>
    \n
  115.             <\/SPAN>\/\/\u88c5\u8f7d\u6c34\u5370\u56fe\u7247\u6240\u9700\u53c2\u6570 <\/FONT><\/SPAN>  <\/SPAN><\/SPAN><\/LI>
    \n
  116.             File water;   <\/SPAN><\/LI>
    \n
  117.             BufferedImage bufferwater;   <\/SPAN><\/LI>
    \n
  118.                <\/SPAN><\/LI>
    \n
  119.             <\/SPAN>\/\/ \u6839\u636e\u8bbe\u5b9a\u7684\u5e73\u5747\u7070\u5ea6\u8fb9\u754c\u6765\u88c5\u8f7d\u4e0d\u540c\u7684\u6c34\u5370 <\/FONT><\/SPAN>  <\/SPAN><\/SPAN><\/LI>
    \n
  120.             <\/SPAN>if<\/FONT><\/STRONG><\/SPAN> (darknessWaterImg == <\/SPAN>null<\/FONT><\/STRONG><\/SPAN>||average>=averageGray) {   <\/SPAN><\/SPAN><\/LI>
    \n
  121.                 <\/SPAN>\/\/ \u88c5\u8f7d\u4eae\u6c34\u5370\u6587\u4ef6 <\/FONT><\/SPAN>  <\/SPAN><\/SPAN><\/LI>
    \n
  122.                 water = <\/SPAN>new<\/FONT><\/STRONG><\/SPAN> File(darknessWaterImg);   <\/SPAN><\/SPAN><\/LI>
    \n
  123.             }<\/SPAN>else<\/FONT><\/STRONG><\/SPAN>{   <\/SPAN><\/SPAN><\/LI>
    \n
  124.                 <\/SPAN>\/\/ \u88c5\u8f7d\u6697\u6c34\u5370\u6587\u4ef6 <\/FONT><\/SPAN>  <\/SPAN><\/SPAN><\/LI>
    \n
  125.                 water = <\/SPAN>new<\/FONT><\/STRONG><\/SPAN> File(lightnessWaterImg);   <\/SPAN><\/SPAN><\/LI>
    \n
  126.             }   <\/SPAN><\/LI>
    \n
  127.             <\/SPAN>\/\/ \u88c5\u5165\u5185\u5b58 <\/FONT><\/SPAN>  <\/SPAN><\/SPAN><\/LI>
    \n
  128.             bufferwater = ImageIO.read(water);   <\/SPAN><\/LI>
    \n
  129.                            <\/SPAN><\/LI>
    \n
  130.             graphics.drawImage(bufferwater, startX, startY, x, y,   <\/SPAN><\/LI>
    \n
  131.                     <\/SPAN>null<\/FONT><\/STRONG><\/SPAN>);   <\/SPAN><\/SPAN><\/LI>
    \n
  132.             <\/SPAN>\/\/ \u6c34\u5370\u6587\u4ef6\u7ed3\u675f <\/FONT><\/SPAN>  <\/SPAN><\/SPAN><\/LI>
    \n
  133.             graphics.dispose();   <\/SPAN><\/LI>
    \n
  134.             FileOutputStream out = <\/SPAN>new<\/FONT><\/STRONG><\/SPAN> FileOutputStream(targetImg);   <\/SPAN><\/SPAN><\/LI>
    \n
  135.             JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);   <\/SPAN><\/LI>
    \n
  136.             <\/SPAN>\/\/ \u7ed8\u5236\u65b0\u7684\u6587\u4ef6 <\/FONT><\/SPAN>  <\/SPAN><\/SPAN><\/LI>
    \n
  137.             encoder.encode(image);   <\/SPAN><\/LI>
    \n
  138.             out.close();   <\/SPAN><\/LI>
    \n
  139.                <\/SPAN><\/LI>
    \n
  140.         } <\/SPAN>catch<\/FONT><\/STRONG><\/SPAN> (Exception e) {   <\/SPAN><\/SPAN><\/LI>
    \n
  141.             e.printStackTrace();   <\/SPAN><\/LI>
    \n
  142.         }   <\/SPAN><\/LI>
    \n
  143.     }   <\/SPAN><\/LI>
    \n
  144.            <\/SPAN><\/LI>
    \n
  145.     <\/SPAN>\/** <\/FONT><\/SPAN> <\/SPAN><\/LI>
    \n
  146.      * \u67e5\u8be2\u67d0\u4e2a\u533a\u57df\u7684\u5e73\u5747\u7070\u5ea6 <\/FONT><\/SPAN> <\/SPAN><\/LI>
    \n
  147.      * @param width <\/FONT><\/SPAN> <\/SPAN><\/LI>
    \n
  148.      * @param height <\/FONT><\/SPAN> <\/SPAN><\/LI>
    \n
  149.      * @param pixels <\/FONT><\/SPAN> <\/SPAN><\/LI>
    \n
  150.      * @return <\/FONT><\/SPAN> <\/SPAN><\/LI>
    \n
  151.      *\/<\/FONT><\/SPAN>  <\/SPAN><\/SPAN><\/LI>
    \n
  152.     <\/SPAN>private<\/FONT><\/STRONG><\/SPAN> <\/SPAN>float<\/FONT><\/STRONG><\/SPAN> getAverageGrap(<\/SPAN>int<\/FONT><\/STRONG><\/SPAN> width,<\/SPAN>int<\/FONT><\/STRONG><\/SPAN> height,<\/SPAN>int<\/FONT><\/STRONG><\/SPAN>[] pixels){   <\/SPAN><\/SPAN><\/LI>
    \n
  153.         <\/SPAN>\/* \u4e0b\u9762\u662f\u5f00\u59cb\u7b97\u8fd9\u4e2a\u533a\u57df\u7684\u4eae\u5ea6\u4e86\uff0c\u7070\u5ea6\u7b49\u540c\u4e8e\u4eae\u5ea6 *\/<\/FONT><\/SPAN>  <\/SPAN><\/SPAN><\/LI>
    \n
  154.         ColorModel colorModel = ColorModel.getRGBdefault();   <\/SPAN><\/LI>
    \n
  155.         <\/SPAN>int<\/FONT><\/STRONG><\/SPAN> i = <\/SPAN>0<\/FONT><\/SPAN>;   <\/SPAN><\/SPAN><\/LI>
    \n
  156.         <\/SPAN>int<\/FONT><\/STRONG><\/SPAN> j = <\/SPAN>0<\/FONT><\/SPAN>;   <\/SPAN><\/SPAN><\/LI>
    \n
  157.         <\/SPAN>int<\/FONT><\/STRONG><\/SPAN> k = <\/SPAN>0<\/FONT><\/SPAN>;   <\/SPAN><\/SPAN><\/LI>
    \n
  158.         <\/SPAN>int<\/FONT><\/STRONG><\/SPAN> r = <\/SPAN>0<\/FONT><\/SPAN>;   <\/SPAN><\/SPAN><\/LI>
    \n
  159.         <\/SPAN>int<\/FONT><\/STRONG><\/SPAN> g = <\/SPAN>0<\/FONT><\/SPAN>;   <\/SPAN><\/SPAN><\/LI>
    \n
  160.         <\/SPAN>int<\/FONT><\/STRONG><\/SPAN> b = <\/SPAN>0<\/FONT><\/SPAN>;   <\/SPAN><\/SPAN><\/LI>
    \n
  161.         <\/SPAN>int<\/FONT><\/STRONG><\/SPAN> gray = <\/SPAN>0<\/FONT><\/SPAN>;   <\/SPAN><\/SPAN><\/LI>
    \n
  162.         <\/SPAN>float<\/FONT><\/STRONG><\/SPAN> average = <\/SPAN>0<\/FONT><\/SPAN>;<\/SPAN>\/\/ \u5e73\u5747\u7070\u5ea6 <\/FONT><\/SPAN>  <\/SPAN><\/SPAN><\/LI>
    \n
  163.         <\/SPAN>for<\/FONT><\/STRONG><\/SPAN> (i = <\/SPAN>0<\/FONT><\/SPAN>; i < height; i++) {   <\/SPAN><\/SPAN><\/LI>
    \n
  164.             <\/SPAN>for<\/FONT><\/STRONG><\/SPAN> (j = <\/SPAN>0<\/FONT><\/SPAN>; j < width; j++) {   <\/SPAN><\/SPAN><\/LI>
    \n
  165.                 <\/SPAN>\/\/ \u5b9a\u4f4d\u50cf\u7d20\u70b9 <\/FONT><\/SPAN>  <\/SPAN><\/SPAN><\/LI>
    \n
  166.                 k = i * width + j;   <\/SPAN><\/LI>
    \n
  167.                 r = colorModel.getRed(pixels[k]);   <\/SPAN><\/LI>
    \n
  168.                 g = colorModel.getGreen(pixels[k]);   <\/SPAN><\/LI>
    \n
  169.                 b = colorModel.getBlue(pixels[k]);   <\/SPAN><\/LI>
    \n
  170.   <\/SPAN><\/LI>
    \n
  171.                 <\/SPAN>\/\/ \u8ba1\u7b97\u7070\u5ea6\u503c <\/FONT><\/SPAN>  <\/SPAN><\/SPAN><\/LI>
    \n
  172.                 gray = (r * <\/SPAN>38<\/FONT><\/SPAN> + g * <\/SPAN>75<\/FONT><\/SPAN> + b * <\/SPAN>15<\/FONT><\/SPAN>) >> <\/SPAN>7<\/FONT><\/SPAN>;   <\/SPAN><\/SPAN><\/LI>
    \n
  173.   <\/SPAN><\/LI>
    \n
  174.                 average = average + gray;   <\/SPAN><\/LI>
    \n
  175.             }   <\/SPAN><\/LI>
    \n
  176.         }   <\/SPAN><\/LI>
    \n
  177.         <\/SPAN>\/\/ \u8ba1\u7b97\u5e73\u5747\u7070\u5ea6 <\/FONT><\/SPAN>  <\/SPAN><\/SPAN><\/LI>
    \n
  178.         average = average \/ ((i – <\/SPAN>1<\/FONT><\/SPAN>) * (j – <\/SPAN>1<\/FONT><\/SPAN>));   <\/SPAN><\/SPAN><\/LI>
    \n
  179.         <\/SPAN>return<\/FONT><\/STRONG><\/SPAN> average;   <\/SPAN><\/SPAN><\/LI>
    \n
  180.     }   <\/SPAN><\/LI>
    \n
  181.     <\/SPAN>public<\/FONT><\/STRONG><\/SPAN> <\/SPAN>static<\/FONT><\/STRONG><\/SPAN> <\/SPAN>void<\/FONT><\/STRONG><\/SPAN> main(String[] args) {   <\/SPAN><\/SPAN><\/LI>
    \n
  182.         WaterMark waterMark = <\/SPAN>new<\/FONT><\/STRONG><\/SPAN> WaterMark();   <\/SPAN><\/SPAN><\/LI>
    \n
  183.   <\/SPAN><\/LI>
    \n
  184.         waterMark.pressImage(<\/SPAN>“F:\\\\Mine\\\\My Pictures\\\\\u7d20\u6750\\\\w2.png”<\/FONT><\/SPAN>, <\/SPAN>“F:\\\\Mine\\\\My Pictures\\\\\u7d20\u6750\\\\w1.png”<\/FONT><\/SPAN>,   <\/SPAN><\/SPAN><\/LI>
    \n
  185.                 <\/SPAN>“F:\\\\Mine\\\\My Pictures\\\\\u7d20\u6750\\\\2.jpg”<\/FONT><\/SPAN>, <\/SPAN>520<\/FONT><\/SPAN>, <\/SPAN>500<\/FONT><\/SPAN>, <\/SPAN>900<\/FONT><\/SPAN>, <\/SPAN>800<\/FONT><\/SPAN>, <\/SPAN>0<\/FONT><\/SPAN>.5f, <\/SPAN>50<\/FONT><\/SPAN>);   <\/SPAN><\/SPAN><\/LI>
    \n
  186.         System.out.print(<\/SPAN>“\u6dfb\u52a0\u6210\u529f”<\/FONT><\/SPAN>);   <\/SPAN><\/SPAN><\/LI>
    \n
  187.     }   <\/SPAN><\/LI>
    \n
  188.   <\/SPAN><\/LI>
    \n
  189. }  <\/SPAN><\/LI><\/OL>
    \n
    <\/DIV><\/p>\n","protected":false},"excerpt":{"rendered":"

    package image;       import java.awt.AlphaComposite;    import java.awt.Color;    import java.awt.Font;    import java.awt.Graphics;    import java.awt.Graphics2D;    import java.awt.Image;    import java.awt.image.BufferedImage;    import java.awt.image.ColorModel;    import java.awt.image.PixelGrabber;    import java.io.File;    import java.io.FileOutputStream;       import javax.imageio.ImageIO;       import com.sun.image.codec.jpeg.JPEGCodec;    import com.sun.image.codec.jpeg.JPEGImageEncoder;       public class WaterMark {           \/**        * \u83b7\u53d6\u6307\u5b9a\u77e9\u5f62\u4e2d\u7684\u50cf\u7d20\u7684\u77e9\u9635        *         * @param imageSrc        * @param startX        * @param startY        * @param w        * @param h        * @return   … Continue reading \u53e6\u7c7b\u52a0\u6c34\u5370\u2014\u2014\u6839\u636e\u660e\u6697\u5ea6\u5206\u522b\u52a0\u4e0d\u540c\u7684\u6c34\u5370<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[68],"class_list":["post-527","post","type-post","status-publish","format-standard","hentry","category-java","tag-68"],"_links":{"self":[{"href":"https:\/\/www.strongd.net\/index.php?rest_route=\/wp\/v2\/posts\/527","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.strongd.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.strongd.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.strongd.net\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.strongd.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=527"}],"version-history":[{"count":2,"href":"https:\/\/www.strongd.net\/index.php?rest_route=\/wp\/v2\/posts\/527\/revisions"}],"predecessor-version":[{"id":844,"href":"https:\/\/www.strongd.net\/index.php?rest_route=\/wp\/v2\/posts\/527\/revisions\/844"}],"wp:attachment":[{"href":"https:\/\/www.strongd.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=527"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.strongd.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=527"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.strongd.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=527"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}