meta-for IntegralImage also as IIntegralImage {

  static int[] scaledPixelsFromIntegralImage(int w, IntegralImage img) {

    ret scaledPixelsFromIntegralImage(img, w);

  }

  static int[] scaledPixelsFromIntegralImage(IntegralImage img, int w,

    int h default heightForWidth(img, w)) {

    int w1 = img.getWidth(), h1 = img.getHeight();

    double stepX = doubleRatio(w1, w), stepY = doubleRatio(h1, h);

    int[] pixels = new[w*h];

    int i = 0;

    double srcY = 0;

    double area = stepX*stepY;

    printVars ifdef scaledPixelsFromIntegralImage_debug("scaledPixelsFromIntegralImage", +w, +h, +w1, +h1, +stepX, +stepY, +area);

    for y to h: {

      double srcX = 0, nextSrcY = srcY+stepY;

      for x to w: {

        double nextSrcX = srcX+stepX;

        dbl r = doubleRatio(img.rectSum(srcX, srcY, nextSrcX, nextSrcY, 0), area);

        dbl g = doubleRatio(img.rectSum(srcX, srcY, nextSrcX, nextSrcY, 1), area);

        dbl b = doubleRatio(img.rectSum(srcX, srcY, nextSrcX, nextSrcY, 2), area);

        printVars ifdef scaledPixelsFromIntegralImage_debug("scaledPixelsFromIntegralImage", +r, +g, +b);

        pixels[i++] = rgbIntFromDoubles_fullAlpha(r, g, b);

        srcX = nextSrcX;

      }

      srcY = nextSrcY;

    }

    ret pixels;

  }

}