Getting the color of a pixel in an ImageView in Android

Question

I am trying to get the color of the spot where I touched on an ImageView. And I succeeded using getPixel(x,y) for getting the color, but on another spot I am not getting the color of the pixel where I touched; I am getting the color of a different pixel.

ImageView xml:

<ImageView
        android:id="@+id/ImgSelected"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:layout_centerVertical="true"
        android:contentDescription="@string/todo" />

Assigning Bitmap to ImageView:

imageViewSelected.setScaleType(ImageView.ScaleType.CENTER_INSIDE);
imageViewSelected.setImageBitmap(bm2);

OnTouch() for getting the pixel

@Override
    public boolean onTouchEvent(MotionEvent event) {

        if (imageViewSelected.getVisibility() == 0) {
            float eventX = event.getX();
            float eventY = event.getY();
            float[] eventXY = new float[] { eventX, eventY };

            Matrix invertMatrix = new Matrix();
            imageViewSelected.getImageMatrix().invert(invertMatrix);

            invertMatrix.mapPoints(eventXY);
            int x = Integer.valueOf((int) eventXY[0]);
            int y = Integer.valueOf((int) eventXY[1]);

            Drawable imgDrawable = imageViewSelected.getDrawable();
            Bitmap bitmap = ((BitmapDrawable) imgDrawable).getBitmap();

            // Limit x, y range within bitmap
            if (x < 0) {
                x = 0;
            } else if (x > bitmap.getWidth() - 1) {
                x = bitmap.getWidth() - 1;
            }

            if (y < 0) {
                y = 0;
            } else if (y > bitmap.getHeight() - 1) {
                y = bitmap.getHeight() - 1;
            }

            int touchedRGB = bitmap.getPixel(x, y);
            ImgColorPublic.touchX = (int) event.getX();
            ImgColorPublic.touchY = (int) event.getY();
            ImgColorPublic.touchColor = Integer.toHexString(touchedRGB);

        }
        return false;
    }

Using this code, for some images I am getting the correct value, but not for all images.