int pixels in bmp in java

Question

如何在包含像素的int数组中创建新的bmp图像（来自pixelGrabber类的getPixel（））？

感谢

Answer 1

做一个BufferedImage，并调用setPixel。

的BufferedImage：http://download.oracle.com/javase/1.4.2/docs/api/java/awt/image/BufferedImage.html

如果你想BMP文件，那么你可以使用ImageIO.write（BufferedImage的， “BMP”，新的文件（ “mybmp.bmp”））;

我会给你链接到ImageIO类，但堆栈溢出阻止我发垃圾邮件。

Answer 2

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)) 

有可能与ARGB格式保存位图的问题，看到这一点：ImageIO.write bmp does not work