How to convert a bitmap to a jpeg file in Android?

Question

I have a cropped bitmap image and I need to save it into a jpeg file.

Thanks in advance

Verrrry very helpful question, seems that SOF guidelines does not the SOF guidelines. UpVote\ — Mohammad Elsayed, Aug 14 '21 at 22:31

score 37 · Accepted Answer · edited May 01 '19 at 06:13

Use this:

Bitmap bmp = null;
ByteArrayOutputStream stream = new ByteArrayOutputStream();
bmp.compress(Bitmap.CompressFormat.JPEG, 100, stream);
byte[] byteArray = stream.toByteArray();

for that you can use this:

FileInputStream fileInputStream = null;

File file = new File("yourfile");

byteArray = new byte[(int) file.length()];

try {
    //convert file into array of bytes
    fileInputStream = new FileInputStream(file);
    fileInputStream.read(bFile);
    fileInputStream.close();

    //convert array of bytes into file
    FileOutputStream fileOuputStream =
            new FileOutputStream("C:\\testing2.txt");
    fileOuputStream.write(bFile);
    fileOuputStream.close();

    System.out.println("Done");
} catch (Exception e) {
    e.printStackTrace();
}

and also for more info go with here

Thank you for this very useful answer to this very useful question. I really don't get why this would be "off topic". It's exactly what I needed to know. — Nobody Tells The Truth, Mar 08 '22 at 14:02

score 6 · Answer 2 · answered Dec 02 '13 at 13:08

6

Try this

bitmap.compress(Bitmap.CompressFormat.JPEG, quality, outStream);

Here is a sample Program

compressing-a-bitmap-to-jpg-format-android

answered Dec 02 '13 at 13:08

Karthi

746
4
16

score 2 · Answer 3 · answered Dec 02 '13 at 13:08

2

I think this is what you need

bitmap.compress(CompressFormat.JPEG, 90, outputStream);

I hope this will help you.

answered Dec 02 '13 at 13:08

Pooja Sangle

321
2
10

1

Good point. To those who don't know how to use this approach: 1. `ByteArrayOutputStream out = new ByteArrayOutputStream();` 2. `bitmap.compress(CompressFormat.JPEG, 90, out);` 3. write byte[] into file or use it anywhere else (for example you can show it in ImageView with the help of Glide lib) – Kirill Karmazin Oct 31 '18 at 21:27

How to convert a bitmap to a jpeg file in Android?

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