1. A method comprising: storing, by a computing device in a first buffer, a set of images based on a live stream of image data captured by an image capture device; selecting, by the computing device, a subset of images from the set of images stored in the first buffer to include as part of an image object representing a summary of the live stream of image data based on a determination that at least one image in the subset of images exceeds a predetermined sharpness threshold; generating, by the computing device, based on the subset of images, the image object representing the summary of the live stream of image data; and outputting, by the computing device, for display at a display device, an indication of the image object.