File buffering RAM and/or arrays was invented long before Adobe. The tricky part is probably optimizing the image processing algorithms to fit the filing method

File buffering RAM and/or arrays was invented long before Adobe. The tricky part is probably optimizing the image processing algorithms to fit the filing method(s). For example, if images are split into "tile files", and a given algorithm requires referencing too many files/tiles at a time, creating too much file I/O, then it probably needs to be reworked into a tile-friendly algorithm.