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Whats up, everybody! Today were talking about how digital images are represented, compressed, and stored on your devices. Lets get started! A typical image is represented as a matrix. Values of this matrix correspond to pixel intensity values. A larger number means a brighter pixel, a smaller number means a darker pixel. Color images have different channels for each color components, such as red, green, and blue. Although this is probably the most common way to represent an image, its not how they are typically stored on a disk. Why not? Lets take a look at what happens when we do. Lets say we have a 12-megapixel color picture, which means we have 12 million values to store for each color channel leading to a total of 36 million values. If we assume that these values are stored as 8-bit or single-byte integers we should end up with a 36-megabyte file. I have a 12-megapixel image here. Lets see how big it is. Wait, what? Thats not even 2 megabytes. Hows this possible? The answe