New York: Chen, a camera software intern at Apple, is a computer science student at Columbia University. Having studied papers on the foundations of HDR imagery and its components, Chen summarized its algorithm as being, simply, “just a system of linear equations.”  He further explained his method in lighter note like this:

 “Have you ever taken a photo with areas that are too bright or too dark? As any photographer will tell you, high dynamic range photography is the right way to solve your problem. And, as any businessperson will tell you, Microsoft Excel is the right platform to implement your solution”

Chen broke down his images into grayscale pixels, with a pixel filling each individual cell in the spreadsheet. After making the cells square, he utilized the zoom level setting to zoom out, thus revealing the photo in full. Notice in the comparison image below, the stained glass windows, in particular, bear significantly more detail.

 

 

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