Here you specify how the image is displayed in the plot. If the image has been georeferenced the image origin and image size values are derived from the image world file. See also Background maps (p. 49).
Display style
Stretch mode
Image origin
Image size
The display style decides how the colors of the images are shown.
Copy colors
Shows the colors of the top picture only
Copy colors with Transparency
Shows the colors of the topmost picture's colors, but you can choose one transparent color. Areas of your picture that has this color will be transparent, so you can see the image below.
Blend colors
The colors of the different layers will be mixed and you can define the Transparency value of the layer.
When a pixel image is drawn in a window such that the image is smaller in at least one direction, at least some pixels in the original image will map to a single displaced pixel. The stretch mode determines the color of those pixels.
Halftone
Maps pixels from the source rectangle into blocks of pixels in the destination rectangle. The average color over the destination block of pixels approximates the color of the source pixels.
color-on-color
Deletes all eliminated lines of pixels without trying to preserve their information.
Black-on-white
Performs an operation using the color values for the eliminated and existing pixels. If the bitmap is a monochrome bitmap, this mode preserves black pixels at the expense of white pixels.
The default values for the origin of the image are taken from the default display area.
The image size is defined by the pixel width and height multiplied by the number of pixels in the image for the two directions.