private File compressed(Image image, RCompress compress, String name) throws IOException {
if (null == image || null == compress) {
return null;
}
BufferedImage buffer =
new BufferedImage(compress.getWidth(), compress.getHeight(), BufferedImage.TYPE_INT_RGB);
// Image.SCALE_SMOOTH 的缩略算法 生成缩略图片的平滑度的 优先级比速度高 生成的图片质量比较好 但速度慢
if (buffer
.getGraphics()
.drawImage(
image.getScaledInstance(compress.getWidth(), compress.getHeight(), Image.SCALE_SMOOTH),
0,
0,
null)) {
return null;
}
File file = new File(name);
return ImageIO.write(buffer, compress.getFormat(), file) ? file : null;
}
