Code for binary file to bitmap file conversion

[swati mittal]

Hi,

I have a file that have .bin extension and i need to convert it into .bmp code.
Can any body provide me the exact code for this type of conversion.

[Satish Chilukuri]

.bin files are generally CD/DVD images. Is that the kind of file you have?

[swati mittal]

Actually right now i do not have binary file.
If we assume that it is a video or image then provide me solution according to that.

[Satish Chilukuri]

Without knowing the file type, there is no way to do any conversion. I still don't understand what you mean convert to a bitmap file. Are there images like .jpg, .png in the .bin file and you need to convert them to bmp format? If it is a video file how are you going to convert it a bmp file? Do you mean to extract individual frames and save them as bmp?

[swati mittal]

I have a 10-15 .bin files that are the frames generated from a video.
Now i need to write down a code that will change that files into .bmp files.
Please help me soon.

[Ulf Dittmer]

There are many ways to store an image in a file. As Satish mentions, without knowing which format the images are in, we can't give advice on how to convert them.

[swati mittal]

I dont know about the header-footer of image.
Please provide me any sample code for .bin to .bmp conversion.
I am using AIR technology that is responsible to create frames and store them into .bin file.

[swati mittal]

Can any body convert this c# code into java.
(This code is converting .bin file into .bmp)

  private static String CreateBitmap(String binfilePath, String bmpOutputPath)
        {
            try
            {
                FileStream fs = new FileStream(filePath, FileMode.Open, FileAccess.Read);
                BinaryReader binary = new BinaryReader(fs);
                byte[] data = binary.ReadBytes((int)fs.Length);
                byte work = 0;
                
                for (int i = 0; i < data.Length; i += 4)
                {
                    work = data[i + 1];
                    data[i] = data[i + 3];
                    data[i + 1] = data[i + 2];
                    data[i + 2] = work;
                    data[i + 3] = 255;
                }
 

                using (Bitmap bmp = new Bitmap(320, 240, PixelFormat.Format32bppArgb))
                {
                    BitmapData bd = bmp.LockBits(
                        new Rectangle(0, 0, 320, 240),
                        ImageLockMode.WriteOnly,
                        PixelFormat.Format32bppArgb);
 
                    Marshal.Copy(data, 0, bd.Scan0, data.Length);
 
                    bmp.UnlockBits(bd);
 
                    //Console.WriteLine("Output bmp path : " + OutputPath);
                    //Console.Write(".");
 
                    // Only once in a while, saving the BMP fails, so retry up to a number of times (50).
                    int iTry = 0;
                    while (iTry < 5)
                    {
                        try
                        {
                            bmp.Save(OutputPath, ImageFormat.Bmp);
                            break;
                        }
                        catch (Exception e)
                        {
                            if (iTry == 0)
                                Console.WriteLine("BMP save failed: " + OutputPath);
                            iTry++;
                            System.Console.WriteLine("... try #" + iTry);
                            System.Console.WriteLine(e.ToString());
                            Thread.Sleep(1000);
                        }
                    }
 
                    //Console.WriteLine("");
                }
 
                binary.Close();
                fs.Close();
            }
            catch (Exception e)
            {
                System.Console.WriteLine(e.ToString());
                return e.Message;
            }
 
            return "";
 
        }
  

[swati mittal]

format -- PixelFormat.Format32bppArgb

[Joanne Neal]

Originally posted by swati mittal:
Can any body convert this c# code into java.

NotACodeMill
Why don't you have a go and then let us know if you get stuck anywhere.

[Campbell Ritchie]

Originally posted by swati mittal:
Can any body convert this c# code into java.

. . .
                for (int i = 0; i < data.Length; i += 4)
                {
                    work = data[i + 1];
                    data[i] = data[i + 3];
                    data[i + 1] = data[i + 2];
                    data[i + 2] = work;
                    data[i + 3] = 255;
                }
. . .

I am willing to convert that bit to Java. It reads

                for (int i = 0; i < data.Length; i += 4)
                {
                    work = data[i + 1];
                    data[i] = data[i + 3];
                    data[i + 1] = data[i + 2];
                    data[i + 2] = work;
                    data[i + 3] = 255;
                }

You ought to be able to convert the rest of the code without a lot of effort; remember C# and Java are very similar. You will have to alter some of the names of classes, lose the "using" keyword, and in Java Thread.sleep() declares a checked Exception, but the whole job ought not to be too difficult.

[Campbell Ritchie]

Originally posted by Campbell Ritchie:
I am willing to convert that bit to Java. It reads[CODE]

Sorry, I made a mistake. It should read data.length not data.Length.

[swati mittal]

C# code is using class "BitmapData". But java does not contain any class which can work like BitmapData.

[swati mittal]

At last I am able to convert my .bin file into .bmp file.
This is the code --

  
import java.awt.image.BufferedImage;
import java.io.DataInputStream;
import java.io.EOFException;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import javax.imageio.ImageIO;
public class Test3 {
public static void main(String[] args) throws IOException {
 

int i =0;
int w = 320;
int h = 240;
int  imageData[] = new int[w * h];
 
FileInputStream file_input = new FileInputStream ("D:\\abc.bin");
DataInputStream data_in    = new DataInputStream (file_input );
 
while (true) {
  try {
  imageData[i++] = data_in.readInt ();
    
  }
  catch (EOFException eof) {
    System.out.println ("End of File");
    break;
  }
}
BufferedImage finalImage;
finalImage = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);//TYPE_INT_ARGB
finalImage.setRGB(0, 0, w, h, imageData, 0 ,w);
ImageIO.write(finalImage, "bmp", new File("D:\\abc.bmp"));
 
}
}

[Campbell Ritchie]

Well done. ( ) C# code really looks like Java code, doesn't it.

[swati mittal]

yes it looks like a java.
But I faced lot of problems because some classes are available in C# but not in java.