The mathematical side of photography has always interested me. It can be mostly ignored by photographers, often only required to understand the exposure triangle. For me, though, the maths is part of what initially drew me into photography.
In this video from Computerphile, we learn what goes into some of the calculations that allow us to easily resize our images inside Photoshop with just a couple of clicks. It used to be that there was only one method of resizing images, and it wasn’t very good. Then, as processing power increased, we were able to perform more complex tasks more quickly. So, more advanced resizing methods become viable.
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