Java Picture High quality compression

/**

* Edit picture according to wide height

*

* @param Outpath

* Output File path

* @param width

* Output File width

* @param height

* High Output file

* @throws Exception

*/

public static void Dealimage (String filePath, String outpath, Integer width,

Integer height) throws Exception {

To read a local file:

InputStream is = new FileInputStream (FilePath);

Determine the image size 0---500k for 4 times times compression----1024k 6 times times compression 1024 more than 8 times times compression

File picture = new file (FilePath);

int cutmultiple = 2;

if (picture.exists ()) {

int picsize =integer.parseint (new DecimalFormat ("0"). Format (Picture.length ()/1024.0);//rounding

try {

int picsize = (int) (Picture.length ()/1024.0);//Non-rounding

if (picsize<=512) {

cutmultiple=4;

}else if (picsize>512 && picsize<=1024) {

cutmultiple=6;

}else if (picsize>1024) {

cutmultiple=8;

}

} catch (Exception e) {//False fault tolerant processing

cutmultiple=2;

}

}

Image image = Imageio.read (IS);

float tagsize = 200;

int old_w = Image.getwidth (null);

int old_h = Image.getheight (null);

int tempsize;

BufferedImage tag = new BufferedImage (old_w/cutmultiple, Old_h/cutmultiple, Bufferedimage.type_int_rgb);

Tag.getgraphics (). DrawImage (image, 0, 0, old_w/cutmultiple, old_h/cutmultiple, NULL);

FileOutputStream newimage = new FileOutputStream (Outpath);

JPEGImageEncoder encoder = Jpegcodec.createjpegencoder (newimage);

Encoder.encode (tag);

Newimage.close ();

}

Java Picture High quality compression