You can use the AutoCAD IMAGECLIP command to display a subregion of one image.
A clip is a display-only feature that you can use for viewing and plotting purposes. It does not permanently change image data.
The subregion is defined by a clip boundary. When you clip an image, parts of the image outside the clip boundary are hidden from view. You can turn off the clip to redisplay the entire image. You can grip edit the clip boundaries to display more or less of the image. If the clip boundary encloses multiple images, each one is handled as a separate clip.
The IMAGECLIP command works on AutoCAD images (bitonal, grayscale, index color or true color) and on AutoCAD Raster Design toolset custom images (digital elevation models, single-band integer data, or multiband multispectral data).