Image conversion from JPEG to Byte Array in Android

I want to convert JPEG image to Byte Array in android. I am using the below code:

if (PhotoScreen.st_bitPicture != null)
            {

                ByteArrayOutputStream bos = new ByteArrayOutputStream();  
                boolean b = PhotoScreen.st_bitPicture.compress(CompressFormat.JPEG, 100, bos);
                Log.w("test2", "BOOLEAN  BOOLEAN BOOLEAN BOOLEAN :"+b);
                m_base64EncodedImage = Base64.encodeToString(bos.toByteArray(), Base64.DEFAULT);
            }

But it is compressing t开发者_如何转开发he image. How can i do without compressing the image?

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When you say "compressing", do you mean "convert it to base 64?". You already have a byte array, and then you encode it in base 64. What is your desired output?

PhotoScreen.st_bitPicture.compress(CompressFormat.JPEG, 100, bos);

Creates an in-memory JPEG image (JPEG compressed).

bos.toByteArray()

Creates a byte array with the JPEG data. That's what you want.

Base64.encodeToString(bos.toByteArray(), Base64.DEFAULT);

Encodes this data to base 64. Just omit that step if you don't want base 64. If you want any other output (like a string with the byte array converted to hexadecimal), then do that instead.