我必须将Java中的图像大小从大约1000px调整为200px,然后将它们复制到Web文件夹,以200px的分辨率显示在HTML报告中。 (请注意,我必须创建这些文件,因为原始图像将无法用于网络服务器,并且仅复制原始图像将需要太多空间。)
尽管原始图像质量通常很高,但200px图像可能有点颗粒感,我可以调整下面的代码以产生更好质量的图像吗?>
public static BufferedImage resizeUsingImageIO(Image srcImage, int size)
{
int w = srcImage.getWidth(null);
int h = srcImage.getHeight(null);
// Determine the scaling required to get desired result.
float scaleW = (float) size / (float) w;
float scaleH = (float) size / (float) h;
MainWindow.logger.finest("Image Resizing to size:" + size + " w:" + w + ":h:" + h + ":scaleW:" + scaleW + ":scaleH" + scaleH);
//Create an image buffer in which to paint on, create as an opaque Rgb type image, it doesn't matter what type
//the original image is we want to convert to the best type for displaying on screen regardless
BufferedImage bi = new BufferedImage(size, size, BufferedImage.TYPE_INT_RGB);
// Set the scale.
AffineTransform tx = new AffineTransform();
tx.scale(scaleW, scaleH);
// Paint image.
Graphics2D g2d = bi.createGraphics();
g2d.setColor(Color.WHITE);
g2d.fillRect(0, 0, size, size);
g2d.setComposite(AlphaComposite.SrcOver);
g2d.drawImage(srcImage, tx, null);
g2d.dispose();
return bi;
我必须将Java中的图像大小从大约1000px调整为200px,然后将它们复制到Web文件夹,以200px的分辨率显示在HTML报告中。 (请注意,我必须创建这些文件,因为...
您可以通过打开抗锯齿来提高质量。您的情况是: