如何从包含像素的 int 数组(来自 pixelGrabber 类的 getPixel())在 java 中创建新的 bmp 图像?
谢谢
制作一个 BufferedImage 并调用 setPixel。
BufferedImage:http: //download.oracle.com/javase/1.4.2/docs/api/java/awt/image/BufferedImage.html
如果你想要 BMP 文件,那么你可以使用 ImageIO.write(bufferedImage,"BMP", new File("mybmp.bmp"));
我会给你 ImageIO 类的链接,但 Stack Overflow 阻止我发送垃圾邮件。
在科特林:
// As it happens default color model has AARRGGBB format
// in other words alpha + RBG
val colorModel = ColorModel.getRGBdefault()
val raster = colorModel.createCompatibleWritableRaster(
horizontalRes, verticalRes)
val bufferedImage = BufferedImage(
colorModel, raster, colorModel.isAlphaPremultiplied, null)
// rawArgbData = array of int's.
// every int has format = 0xFF|R|G|B (MSB is alpha)
raster.setDataElements(
0, 0, horizontalRes, verticalRes,
rawArgbData)
// finally save
ImageIO.write(bufferedImage, "PNG", File(filePath))
以 ARGB 格式保存位图可能会出现问题,请参阅:ImageIO.write bmp does not work