1. A method of displaying an image, comprising: using a first graphics texture comprising one or more features to be displayed for the image in combination with a second graphics texture to apply a texture to a graphics primitive or primitives representing the image to be displayed in order to display the image; and displaying the graphics primitive or primitives representing the image having the applied texture to display the image; wherein: the second texture and the combining operation are configured such that using the first texture in combination with the second texture causes at least one image feature being displayed to be bordered by a border region that represents a border to that feature.