What is False color?
[[File:Lasvegas.terra.1500pix.jpg|thumb|False-color image of Las Vegas. Grassland, and vegetation appears in red. ]] '''False color''' (or '''false colour''') refers to a group of [[color]] [[Signal processing|methods]] used to display recorded images in color. A '''false-color image''' is an image which shows an object in [[color]]s different from that which a true-colour [[photograph]] would show. In addition, there is ''false color'' used for visualization of genuine data. A [[photograph]] shot in [[color]] will show the colors in the picture as they appeared on the [[photographic film|film]], or to the [[sensor]] of a [[digital camera]]. Since most films and most digital cameras are made to show the world as human [[color vision]] would see it, this is known as true-color image. In a '''false color''' image, the color shown in the image does not correspond to the one the human eye would see. In such an image, color is used for extra information that the eye would not see. Many false color images, for example, show [[infrared]] light that humans cannot see. {{-}} {{multiple image | align = center <!-- Header --> | header = Examples where color is used to give more information <!-- Image 1 --> | width1 = 152 | image1 = Moon Crescent - False Color Mosaic.jpg | caption1 = This image shows compositional variations of the Moon overlaid as pseudo color. | alt1 = This image shows compositional variations of the Moon overlaid as pseudocolor. Bright pinkish areas are highlands materials, blue to orange shades indicate volcanic lava flows. Recent impacted soils are represented by light blue colors; the youngest craters have prominent blue rays extending from them. <!-- Image 2 --> | width2 = 170 | image2 = MR_Knee.jpg | caption2 = A grayscale [[MRI]] of a knee – different gray levels indicate different tissue types, requiring a trained eye. <!-- Image 3 --> | width3 = 184 | image3 = Knee MRI 113035 rgbcb.png | caption3 = A pseudocolor MRI of a knee created using three different gr