👉 Pixel refers to a specific type of image, typically in the form of an image file or graphic design format (e.g., PNG, JPG, GIF). The term "201610_54k" likely refers to a specific version of a pixel-based image file that was created from 2016-10-05 at a resolution of 54K pixels. This is an important note because it indicates the exact format and size of the image data used in this particular example.