# Inside Region

Use the following options to determine whether the output image contains pixels from the input image or a constant grey value:

Option | Description
--- | ---
Copy Input Image Pixels | Take pixels from the input region of the input image for copying to the output image.
Fill With a Constant Value | Fill the output image with a constant greyscale or color value, based on the input region you use as well as the format of the input image. If you are using greyscale images, specify the Greyscale Value. If you are using color images, specify values for Plane 0, Plane 1 and Plane 2, which correspond to planes for Red, Green and Blue in RGM images, or Hue, Saturation and Intensity in HSI images.