How to convert Byte array into bitmap image?

Question

Here i attach code that convert Bitmap to Byte array now i have to regenerate bitmap to show in android Image-view.

In below code mRawBitmapData is byte Araay. Here code is create byte array for converted image so now i have to regenerate the bitmap from this byte array.

private void convertArgbToGrayscale(Bitmap bmpOriginal, int width, int height){
    int pixel;
    int k = 0;
    int B=0,G=0,R=0;
    try{
        for(int x = 0; x < height; x++) {
            for(int y = 0; y < width; y++, k++) {

                pixel = bmpOriginal.getPixel(y, x);

                if(pixel == -1){
                    mDataArray[k] = 1;
                }
                else {
                    mDataArray[k] = 0;
                }
            }
            if(mDataWidth>width){
                for(int p=width;p<mDataWidth;p++,k++){
                    mDataArray[k]=0;
                }
            }
        }
    }catch (Exception e) {

        Log.e(TAG, e.toString());
    }
}

private void createRawMonochromeData(){
    int length = 0;
    for (int i = 0; i < mDataArray.length; i = i + 8) {

        int k=0;
        for (int j = 7; j >=0; j--, k++) {
            if(mDataArray[i+k]==1)
            {
                mRawBitmapData[length] |= 1 << j;
            }
            else
            {
                mRawBitmapData[length] &= ~(1 << j);
            }

        }

        length++;

    }
}

Rajan Kali · Accepted Answer · 2016-02-15 12:17:10Z

12

byte[] bitmapdata; // let this be your byte array
Bitmap bitmap = BitmapFactory.decodeByteArray(bitmapdata , 0, bitmapdata .length);

answered Feb 15, 2016 at 12:17

Rajan Kali

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Comments

Akshay Bhat 'AB' · Accepted Answer · 2016-02-15 12:16:54Z

3

Use BitmapFactory of Android for getting bitmap from byte array like :

Bitmap bitmap = BitmapFactory.decodeByteArray(bitmapdata , 0, bitmapdata.length);

answered Feb 15, 2016 at 12:16

Akshay Bhat 'AB'

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