joo

package kierros3

object Filter {

  private def createColor(alpha: Int, red: Int, green: Int, blue:Int): Int = {
    if ((Math.min(alpha, 255) == alpha && Math.max(alpha, 0) == alpha)
        && (Math.min(red, 255) == red && Math.max(red, 0) == red)
        && (Math.min(green, 255) == green && Math.max(green, 0) == green)
        && (Math.min(blue, 255) == blue && Math.max(blue, 0) == blue))
    {
      val movedAlpha = alpha
      val movedRed = red << 8
      val movedGreen = green << 16
      val movedBlue = blue << 24
      val result = movedAlpha & movedRed & movedGreen & movedBlue
      return result
    }
    else return -1
  }
  def lightness(factor: Float, image: Image) : Unit = {}

  def invert(image: Image) : Unit = {}

  def grayscale(image: Image) : Unit = {}

  def adjustRed(amount: Int, image: Image) : Unit = {}

  def adjustGreen(amount: Int, image: Image) : Unit = {}

  def adjustBlue(amount: Int, image: Image) : Unit = {}

  def blur(amount: Int, image: Image) : Unit = {}

  def sharpen(amount: Int, image: Image) : Unit = {}

}