Create a BufferedImage from file and make it TYPE INT ARGB

Question

I have a PNG file with transparency that is loaded and stored in a BufferedImage  I need this BufferedImage to be of TYPE INT ARGB  However  when I use getType   the returned value is 0  TYPE CUSTOM  instead of 2  TYPE INT ARGB    This is how I load the  png   public File img   new File  imagen png     public BufferedImage buffImg        new BufferedImage 240  240  BufferedImage TYPE INT ARGB    try        buffImg   ImageIO read img        catch  IOException e       System out Println buffImg getType       Prints 0 instead of 2   How can I load the  png  save in the BufferedImage and make it TYPE INT ARGB

User · Answer

try       File img   new File  somefile png        BufferedImage image   ImageIO read img         System out println image     catch  IOException e         e printStackTrace         Example output for my image file   BufferedImage 5d391d  type   5 ColorModel   pixelBits   24  numComponents   3 color  space   java awt color ICC ColorSpace 50a649  transparency   1  has alpha   false  isAlphaPre   false  ByteInterleavedRaster   width   800  height   600   numDataElements 3  dataOff 0    2   You can run System out println object   on just about any object and get some information about it

User · Answer

Create a BufferedImage from file and make it TYPE INT RGB  import java io    import java awt image    import javax imageio    public class Main      public static void main String args             try              BufferedImage img   new BufferedImage                   500  500  BufferedImage TYPE INT RGB                File f   new File  MyFile png                int r   5              int g   25               int b   255              int col    r  lt  lt  16     g  lt  lt  8    b              for int x   0  x  lt  500  x                     for int y   20  y  lt  300  y                         img setRGB x  y  col                                               ImageIO write img   PNG   f                      catch Exception e                e printStackTrace                        This paints a big blue streak across the top   If you want it ARGB  do it like this       try          BufferedImage img   new BufferedImage               500  500  BufferedImage TYPE INT ARGB            File f   new File  MyFile png            int r   255          int g   10          int b   57          int alpha   255          int col    alpha  lt  lt  24     r  lt  lt  16     g  lt  lt  8    b          for int x   0  x  lt  500  x                 for int y   20  y  lt  30  y                     img setRGB x  y  col                                   ImageIO write img   PNG   f             catch Exception e           e printStackTrace            Open up MyFile png  it has a red streak across the top

User · Answer

BufferedImage in   ImageIO read img    BufferedImage newImage   new BufferedImage      in getWidth    in getHeight    BufferedImage TYPE INT ARGB    Graphics2D g   newImage createGraphics    g drawImage in  0  0  null   g dispose

[java] Create a BufferedImage from file and make it TYPE_INT_ARGB

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