Pixel difference in java format for android java between two images

Question

I need to calculate the difference in pixels between two images in java on Android. The problem is that I have code that returns an inaccurate result.

eg. I have 3 very similar pictures, but to compare each of them they give significantly different results: pic1 vs pic2 = 1.71%; pic1 vs pic3 = 0.0045%; pic2 vs pic3 = 36.7%.

BitmapFactory.Options opt = new BitmapFactory.Options();
    opt.inPreferredConfig = Bitmap.Config.ARGB_8888;
    opt.inSampleSize = 5;
    Bitmap mBitmap1 = BitmapFactory.decodeFile("/sdcard/pic1.jpg", opt);
    Bitmap mBitmap2 = BitmapFactory.decodeFile("/sdcard/pic2.jpg", opt);

    int intColor1 = 0;
    int intColor2 = 0;
    for (int x = 0; x < mBitmap1.getWidth(); x++) {
       for (int y = 0; y < mBitmap1.getHeight(); y++) {
            intColor1 = mBitmap1.getPixel(x, y);
            intColor2 = mBitmap2.getPixel(x, y); 
            //System.out.print(" ("+ x + ","+ y +") c:" + intColor1);   
       }
       String resultString = String.valueOf(intColor1);

    }
    //now calculate percentage difference
    double razlika = (((double)intColor1 - intColor2)/intColor2)*100;

}

It seems to me that I need to compare each pixel for both images (intColor1 (x, y) vs intColor2 (x, y)), but how can I do this, and later calculate the percentage difference?

Answer 1

, , . , # 333333 # 333332 ( , 0.003% ). # 323333 # 333333, , 3% .

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