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包含javaRed5代碼的詞條

怎么用java實現實時聊天跟直播功能

直接用zego的SDK吧,web、iOS、Android都可以支持。有現成的demo和SDK試用

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在windows 環境下,red5啟動的時候除了用red5.bat啟動外,還有什么好的辦法嗎?

下載一個安裝版本的red5.執行exe文件將red5安裝為系統服務.自己設置是否開機啟動 或是自己在服務里啟動 就不會有dos窗口

了解 red5 的請進!!

這個是linux嗎?

有點看不懂··

猜2中方法:

添加commons-logging-1.1.1.jar

或者是:在red5的web.xml注釋有log4J的配置

如何用java去除圖片水印?

//運行以下程序即可

public?class?ImageInit?{

BufferedImage?image;

private?int?iw,?ih;

private?int[]?pixels;

public?ImageInit(BufferedImage?image)?{

this.image?=?image;

iw?=?image.getWidth();

ih?=?image.getHeight();

pixels?=?new?int[iw?*?ih];

}

public?BufferedImage?changeGrey()?{

PixelGrabber?pg?=?new?PixelGrabber(image.getSource(),?0,?0,?iw,?ih,

pixels,?0,?iw);

try?{

pg.grabPixels();

}?catch?(InterruptedException?e)?{

e.printStackTrace();

}

//?設定二值化的域值,默認值為100

int?grey?=?100;

//?對圖像進行二值化處理,Alpha值保持不變

ColorModel?cm?=?ColorModel.getRGBdefault();

for?(int?i?=?0;?i??iw?*?ih;?i++)?{

int?red,?green,?blue;

int?alpha?=?cm.getAlpha(pixels[i]);

if?(cm.getRed(pixels[i])??grey)?{

red?=?255;

}?else?{

red?=?0;

}

if?(cm.getGreen(pixels[i])??grey)?{

green?=?255;

}?else?{

green?=?0;

}

if?(cm.getBlue(pixels[i])??grey)?{

blue?=?255;

}?else?{

blue?=?0;

}

pixels[i]?=?alpha??24?|?red??16?|?green??8?|?blue;?//?通過移位重新構成某一點像素的RGB值

}

//?將數組中的象素產生一個圖像

Image?tempImg?=?Toolkit.getDefaultToolkit().createImage(

new?MemoryImageSource(iw,?ih,?pixels,?0,?iw));

image?=?new?BufferedImage(tempImg.getWidth(null),

tempImg.getHeight(null),?BufferedImage.TYPE_INT_BGR);

image.createGraphics().drawImage(tempImg,?0,?0,?null);

return?image;

}

public?BufferedImage?getMedian()?{

PixelGrabber?pg?=?new?PixelGrabber(image.getSource(),?0,?0,?iw,?ih,

pixels,?0,?iw);

try?{

pg.grabPixels();

}?catch?(InterruptedException?e)?{

e.printStackTrace();

}

//?對圖像進行中值濾波,Alpha值保持不變

ColorModel?cm?=?ColorModel.getRGBdefault();

for?(int?i?=?1;?i??ih?-?1;?i++)?{

for?(int?j?=?1;?j??iw?-?1;?j++)?{

int?red,?green,?blue;

int?alpha?=?cm.getAlpha(pixels[i?*?iw?+?j]);

//?int?red2?=?cm.getRed(pixels[(i?-?1)?*?iw?+?j]);

int?red4?=?cm.getRed(pixels[i?*?iw?+?j?-?1]);

int?red5?=?cm.getRed(pixels[i?*?iw?+?j]);

int?red6?=?cm.getRed(pixels[i?*?iw?+?j?+?1]);

//?int?red8?=?cm.getRed(pixels[(i?+?1)?*?iw?+?j]);

//?水平方向進行中值濾波

if?(red4?=?red5)?{

if?(red5?=?red6)?{

red?=?red5;

}?else?{

if?(red4?=?red6)?{

red?=?red6;

}?else?{

red?=?red4;

}

}

}?else?{

if?(red4??red6)?{

red?=?red4;

}?else?{

if?(red5??red6)?{

red?=?red6;

}?else?{

red?=?red5;

}

}

}

int?green4?=?cm.getGreen(pixels[i?*?iw?+?j?-?1]);

int?green5?=?cm.getGreen(pixels[i?*?iw?+?j]);

int?green6?=?cm.getGreen(pixels[i?*?iw?+?j?+?1]);

//?水平方向進行中值濾波

if?(green4?=?green5)?{

if?(green5?=?green6)?{

green?=?green5;

}?else?{

if?(green4?=?green6)?{

green?=?green6;

}?else?{

green?=?green4;

}

}

}?else?{

if?(green4??green6)?{

green?=?green4;

}?else?{

if?(green5??green6)?{

green?=?green6;

}?else?{

green?=?green5;

}

}

}

//?int?blue2?=?cm.getBlue(pixels[(i?-?1)?*?iw?+?j]);

int?blue4?=?cm.getBlue(pixels[i?*?iw?+?j?-?1]);

int?blue5?=?cm.getBlue(pixels[i?*?iw?+?j]);

int?blue6?=?cm.getBlue(pixels[i?*?iw?+?j?+?1]);

//?int?blue8?=?cm.getBlue(pixels[(i?+?1)?*?iw?+?j]);

//?水平方向進行中值濾波

if?(blue4?=?blue5)?{

if?(blue5?=?blue6)?{

blue?=?blue5;

}?else?{

if?(blue4?=?blue6)?{

blue?=?blue6;

}?else?{

blue?=?blue4;

}

}

}?else?{

if?(blue4??blue6)?{

blue?=?blue4;

}?else?{

if?(blue5??blue6)?{

blue?=?blue6;

}?else?{

blue?=?blue5;

}

}

}

pixels[i?*?iw?+?j]?=?alpha??24?|?red??16?|?green??8

|?blue;

}

}

//?將數組中的象素產生一個圖像

Image?tempImg?=?Toolkit.getDefaultToolkit().createImage(

new?MemoryImageSource(iw,?ih,?pixels,?0,?iw));

image?=?new?BufferedImage(tempImg.getWidth(null),

tempImg.getHeight(null),?BufferedImage.TYPE_INT_BGR);

image.createGraphics().drawImage(tempImg,?0,?0,?null);

return?image;

}

public?BufferedImage?getGrey()?{

ColorConvertOp?ccp?=?new?ColorConvertOp(

ColorSpace.getInstance(ColorSpace.CS_GRAY),?null);

return?image?=?ccp.filter(image,?null);

}

//?Brighten?using?a?linear?formula?that?increases?all?color?values

public?BufferedImage?getBrighten()?{

RescaleOp?rop?=?new?RescaleOp(1.25f,?0,?null);

return?image?=?rop.filter(image,?null);

}

//?Blur?by?"convolving"?the?image?with?a?matrix

public?BufferedImage?getBlur()?{

float[]?data?=?{?.1111f,?.1111f,?.1111f,?.1111f,?.1111f,?.1111f,

.1111f,?.1111f,?.1111f,?};

ConvolveOp?cop?=?new?ConvolveOp(new?Kernel(3,?3,?data));

return?image?=?cop.filter(image,?null);

}

//?Sharpen?by?using?a?different?matrix

public?BufferedImage?getSharpen()?{

float[]?data?=?{?0.0f,?-0.75f,?0.0f,?-0.75f,?4.0f,?-0.75f,?0.0f,

-0.75f,?0.0f?};

ConvolveOp?cop?=?new?ConvolveOp(new?Kernel(3,?3,?data));

return?image?=?cop.filter(image,?null);

}

//?11)?Rotate?the?image?180?degrees?about?its?center?point

public?BufferedImage?getRotate()?{

AffineTransformOp?atop?=?new?AffineTransformOp(

AffineTransform.getRotateInstance(Math.PI,

image.getWidth()?/?2,?image.getHeight()?/?2),

AffineTransformOp.TYPE_NEAREST_NEIGHBOR);

return?image?=?atop.filter(image,?null);

}

public?BufferedImage?getProcessedImg()?{

return?image;

}

public?static?void?main(String[]?args)?throws?IOException?{

String?filePath="F:/k7qp5.png";

FileInputStream?fin?=?new?FileInputStream(filePath);

BufferedImage?bi?=?ImageIO.read(fin);

ImageInit?flt?=?new?ImageInit(bi);

flt.changeGrey();

flt.getGrey();

flt.getBrighten();

bi?=?flt.getProcessedImg();

String?pname?=?filePath.substring(0,?filePath.lastIndexOf("."));

File?file?=?new?File(pname?+?".jpg");

ImageIO.write(bi,?"jpg",?file);

}

}

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