如何从 BufferedImage 对象中获取 InputStream?我试过了,但 ImageIO.createImageInputStream() 总是返回 NULL
BufferedImage bigImage = GraphicsUtilities.createThumbnail(ImageIO.read(file), 300);
ImageInputStream bigInputStream = ImageIO.createImageInputStream(bigImage);
图像缩略图正在正确生成,因为我可以成功地将 bigImage 绘制到 JPanel。
最佳答案
来自 http://usna86-techbits.blogspot.com/2010/01/inputstream-from-url-bufferedimage.html
效果很好!
Here is how you can make an InputStream for a BufferedImage:
URL url = new URL("http://www.google.com/intl/en_ALL/images/logo.gif"); BufferedImage image = ImageIO.read(url); ByteArrayOutputStream os = new ByteArrayOutputStream(); ImageIO.write(image, "gif", os); InputStream is = new ByteArrayInputStream(os.toByteArray());
关于java - 如何从 BufferedImage 中获取 InputStream?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/649186/