Java image-Processing truncated graphics (modified version)

You can use this test when you have a network

Import Java.awt.Color;
Import Java.awt.Graphics2D;
Import Java.awt.Image;
Import java.awt.RenderingHints;
Import Java.awt.geom.Ellipse2D;
Import Java.awt.image.BufferedImage;
Import Java.io.File;
Import java.io.IOException;
Import java.net.HttpURLConnection;
Import java.net.MalformedURLException;
Import java.net.ProtocolException;

Import Java.net.URL;

Import Javax.imageio.ImageIO;
	
	The public class Test {static String URL = "http://avatar.csdn.net/3/1/7/1_qq_27292113.jpg?1488183229974"; public static void Main (string[] args) {try {//http://avatar.csdn.net/3/1/7/1_qq_27292113.jpg?1488183229974// is avatar address//Get picture stream bufferedimage url = geturlbybufferedimage ("http://avatar.csdn.net/3/1/7/1_qq_27292113.jpg?14881

83229974 ");
Image src = imageio.read (new File ("C:/users/administrator/desktop/imag.png"));
			BufferedImage URL = (bufferedimage) src;
			Process the picture to compress it into a square small figure bufferedimage convertimage = scalebypercentage (URL, 100, 100); Cropped into a circle (the incoming image must be square toIf the circle is rectangular, the proportions will become elliptical) Convertimage = convertcircular (URL);
			Generated picture position String ImagePath = "C:/users/administrator/desktop/imag.png";
			Imageio.write (Convertimage, imagepath.substring (Imagepath.lastindexof (".") + 1), new File (ImagePath));
		System.out.println ("OK");
		catch (Exception e) {e.printstacktrace (); }/** * Reduces image, this method returns images of the source image scaled by given width, height limit * @param inputimage * @param maxwidth *: Compressed width * @param maxheight *: Compressed Height * @throws java.io.IOException * return/public static buffered Image Scalebypercentage (bufferedimage inputimage, int newwidth, int newheight) throws Exception {//Get original image transparency type int T
		ype = Inputimage.getcolormodel (). Gettransparency ();
		int width = inputimage.getwidth ();
		int height = inputimage.getheight (); Open anti-aliasing renderinghints renderinghints = new Renderinghints (renderinghints.key_antialiasing, Renderinghints.value_
		ANTIALIAS_ON); Use high quality compression renderinghints.put (RenderinghinTs.
		Key_rendering, renderinghints.value_render_quality);
		BufferedImage img = new BufferedImage (newwidth, newheight, type);
		Graphics2D graphics2d = Img.creategraphics ();
		Graphics2d.setrenderinghints (renderinghints);
		Graphics2d.drawimage (inputimage, 0, 0, newwidth, newheight, 0, 0, width, height, null);
		Graphics2d.dispose ();
	return img; 
		/** * Get picture via network * * @param URL * @return/public static bufferedimage geturlbybufferedimage (String URL) {
			try {URL urlobj = new URL (URL);
			HttpURLConnection conn = (httpurlconnection) urlobj.openconnection ();
			Connection Timeout Conn.setdoinput (true);
			Conn.setdooutput (TRUE);
			Conn.setconnecttimeout (25000);
			Read timeout-server response is slow, increase time conn.setreadtimeout (25000);
			Conn.setrequestmethod ("get");
			Conn.addrequestproperty ("Accept-language", "ZH-CN");
			Conn.addrequestproperty ("Content-type", "image/jpeg"); Conn.addrequestproperty ("User-agent", "mozilla/4.0" (compatible; MSIE 8.0; Windows NT 5.1; trident/4.0. NET CLR 2.0.50727) ");
			Conn.connect ();
			BufferedImage bufimg = Imageio.read (Conn.getinputstream ());
			Conn.disconnect ();
		return bufimg;
		catch (Malformedurlexception e) {e.printstacktrace ();
		catch (Protocolexception e) {e.printstacktrace ();
		catch (IOException e) {e.printstacktrace ();
	return null; /** * Incoming images must be square to be rounded if the proportions of the rectangles will become oval * * @param URL * User Avatar Address * @return * @throws ioexcept Ion */public static bufferedimage Convertcircular (BufferedImage bi1) throws IOException {//BufferedImage BI1 = I
		
		Mageio.read (new File (URL));

		This is the black Bottom//bufferedimage Bi2 = new BufferedImage (Bi1.getwidth (), Bi1.getheight (), BUFFEREDIMAGE.TYPE_INT_RGB);
		Transparent bottom of the picture bufferedimage Bi2 = new BufferedImage (Bi1.getwidth (), Bi1.getheight (), BUFFEREDIMAGE.TYPE_4BYTE_ABGR);
		ellipse2d.double shape = new ellipse2d.double (0, 0, bi1.getwidth (), Bi1.getheight ());
		graphics2d g2 = Bi2.creategraphics ();
		G2.setclip (Shape); Using SETREnderinghint set anti-aliasing g2.drawimage (bi1, 0, 0, NULL);
		Set color G2.setbackground (Color.green);
		G2.dispose ();
	return BI2;
 }
}

There is no Internet use this test (local must have c:/users/administrator/desktop/imag.png this picture or it will be an error)

	public static void Main (string[) args {
		try {
			//Picture's local address
	        image src = imageio.read (new File ("c:/users/ Administrator/desktop/imag.png "));
	        BufferedImage URL = (bufferedimage) src;
	        Process the picture to compress it into a square small figure
	        bufferedimage  convertimage= scalebypercentage (URL, 100,100);
	        Cropped into a circle (the incoming image must be square to be rounded if the proportions of the rectangle will become elliptical)
	        convertimage = convertcircular (URL);
	        The generated picture position
	    	String imagepath= "C:/users/administrator/desktop/imag.png";
	        Imageio.write (Convertimage, imagepath.substring (Imagepath.lastindexof (".") + 1), new File (ImagePath)); 
	        System.out.println ("OK");
		} catch (Exception e) {
			e.printstacktrace ();
		}
	}

Comparison of execution results

Here's a reminder that this clipping actually just preserves the tones in the circle and the rest of it turns into a transparent hue, and it's not cropped out (plainly or in the original shape).