Handle picture size, size, and watermark with third-party tools (thumbnailator non-Java own API)

thumbnailator-0.4.8 is currently the latest jar

Code

 PackageYingyue;ImportJava.io.File;ImportJava.io.FileOutputStream;Importjava.io.IOException;ImportJava.io.OutputStream;ImportJavax.imageio.ImageIO;Importnet.coobird.thumbnailator.Thumbnails;Importnet.coobird.thumbnailator.geometry.Positions; Public classhandlerimg {Private StaticString frompic = "From/1600x1200-asia emea.jpg"; Private StaticString toPic = "to/";  Public Static voidMain (string[] args) {Try {            /*Scales the image to a specified size (will follow the original aspect scale)*/Thumbnails.of (frompic). Size (100, 200). ToFile (ToPic+ "/new1.jpg");//to 400*300, follow the original scale or drop to a height of 400*                        /*Zoom out and zoom in at a specified scale*/Thumbnails.of (frompic). Scale (0.2f). ToFile (ToPic+ "/new2_small.jpg");//proportionally ReducedThumbnails.of (frompic).                Scale (2f). ToFile (ToPic+ "/new2_large.jpg");//zoom in on the scale                        /*image size unchanged, compressed picture file size*/Thumbnails.of (frompic).                Scale (1f). Outputquality (0.25f). ToFile (ToPic+ "/new3.jpg");//image size unchanged, compressed image file size outputquality implementation, parameter 1 for the highest quality                        /*picture rotation rotate (angle), positive: Clockwise negative: Counterclockwise*/Thumbnails.of (frompic). Size (1280,1024). Rotate (90). ToFile (ToPic+ "/new4.jpg"); /*Watermark Watermark (location, watermark, transparency)*/Thumbnails.of (frompic). Size (1280,1024). Watermark (Positions.bottom_right,imageio.read (NewFile ("From/ss.png")), 0.8f). Outputquality (0.8f). ToFile (ToPic+ "/new5-1.jpg"); Thumbnails.of (frompic). Size (1280,1024). Watermark (Positions.center,imageio.read (NewFile ("From/ss.png")), 0.5f). Outputquality (0.8f). ToFile (ToPic+ "/new5-2.jpg"); Thumbnails.of (frompic). Size (1280,1024). Watermark (Positions.top_left,imageio.read (NewFile ("From/ss.png")), 0.9f). Outputquality (0.8f). ToFile (ToPic+ "/new5-3.jpg"); /*cropping*/Thumbnails.of (frompic). Sourceregion (Positions.center,400,400). Size (200,200). Keepaspectratio (false). ToFile (ToPic+ "/new6-1.jpg"); //picture lower right 400*400 areaThumbnails.of (frompic). Sourceregion (Positions.bottom_right,400,400). Size (200,200). Keepaspectratio (false). ToFile (ToPic+ "/new6-2.jpg"); //Specify coordinatesThumbnails.of (frompic). Sourceregion (600,500,400,400). Size (200,200). Keepaspectratio (false). ToFile (ToPic+ "/new6-3.jpg"); /*Conversion Image Format*/Thumbnails.of (frompic). Size (1280,1024). OutputFormat ("PNG"). ToFile (ToPic+ "/new7-1"); Thumbnails.of (frompic). Size (1280,1024). OutputFormat ("GIF"). ToFile (ToPic+ "/new7-2"); } Catch(IOException e) {e.printstacktrace (); }    }}

Package Yingyue;

Import Java.io.File;
Import Java.io.FileOutputStream;
Import java.io.IOException;
Import Java.io.OutputStream;

Import Javax.imageio.ImageIO;

Import Net.coobird.thumbnailator.Thumbnails;
Import net.coobird.thumbnailator.geometry.Positions;

public class Testimg {

private static String Frompic = "From/1600x1200-asia emea.jpg";
private static String ToPic = "to/";
public static void Main (string[] args) {
try {
/* Scale the image to the specified size (will follow the original aspect scale) */
Thumbnails.of (Frompic).
Size (100, 200).
ToFile (ToPic + "/new1.jpg");//Change to 400*300, follow the original scale or drop to a height of 400*

/* Zoom out and zoom in at the specified scale */
Thumbnails.of (Frompic).
Scale (0.2f).
ToFile (ToPic + "/new2_small.jpg");//proportionally reduced
Thumbnails.of (Frompic).
Scale (2f).
ToFile (ToPic + "/new2_large.jpg");//Proportional amplification

/* Picture size unchanged, compressed picture file size */
Thumbnails.of (Frompic).
Scale (1f).
Outputquality (0.25f).
ToFile (ToPic + "/new3.jpg");//image size unchanged, compressed image file size outputquality implementation, parameter 1 for the highest quality

/* Picture rotation rotate (angle), positive: Clockwise negative: counterclockwise */
Thumbnails.of (Frompic)
. Size (1280,1024)
. Rotate (90)
. ToFile (ToPic + "/new4.jpg");

/* Watermark Watermark (location, watermark, transparency) */
Thumbnails.of (Frompic)
. Size (1280,1024)
. Watermark (Positions.bottom_right,imageio.read (New File ("From/ss.png")), 0.8f)
. Outputquality (0.8f)
. ToFile (ToPic + "/new5-1.jpg");

Thumbnails.of (Frompic)
. Size (1280,1024)
. Watermark (Positions.center,imageio.read (New File ("From/ss.png")), 0.5f)
. Outputquality (0.8f)
. ToFile (ToPic + "/new5-2.jpg");

Thumbnails.of (Frompic)
. Size (1280,1024)
. Watermark (Positions.top_left,imageio.read (New File ("From/ss.png")), 0.9f)
. Outputquality (0.8f)
. ToFile (ToPic + "/new5-3.jpg");

/* Crop */
Thumbnails.of (Frompic)
. Sourceregion (positions.center,400,400)
. Size (200,200)
. Keepaspectratio (False)
. ToFile (ToPic + "/new6-1.jpg");

Picture lower right 400*400 area
Thumbnails.of (Frompic)
. Sourceregion (positions.bottom_right,400,400)
. Size (200,200)
. Keepaspectratio (False)
. ToFile (ToPic + "/new6-2.jpg");

Specify coordinates
Thumbnails.of (Frompic)
. Sourceregion (600,500,400,400)
. Size (200,200)
. Keepaspectratio (False)
. ToFile (ToPic + "/new6-3.jpg");

/* Convert image Format */
Thumbnails.of (Frompic)
. Size (1280,1024)
. OutputFormat ("PNG")
. ToFile (ToPic + "/new7-1");

Thumbnails.of (Frompic)
. Size (1280,1024)
. OutputFormat ("GIF")
. ToFile (ToPic + "/new7-2");

} catch (IOException e) {
E.printstacktrace ();
}
}
}

Handle picture size, size, and watermark with third-party tools (thumbnailator non-Java own API)