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  • You Wang thinks this is interesting:

Assume that we have 24-bit color, so that one byte of memory is required for each of the red, green, and blue components of each pixel. With a 2048 × 1536 pixel image there will be 2048 × 1536 × 3 = 9, 431, 040 bytes or 9 megabytes of memory required, if no compression is used.

From

Cover of Discrete Fourier Analysis and Wavelets: Applications to Signal and Image Processing

Note

uncompressed image is very large