No matter if you love or hate HDR, you have to admit that creating an HDR photo in Microsoft Excel sounds… Well, unordinary. Maybe even impossible. Well, in this highly amusing video, a young scientist and amateur photographer Kevin Chen explains how you can create an HDR image in Microsoft Excel.
Forced perspective is one of the most wonderfully creative tools photography affords. It allows us to create optical illusions that either baffle or simply amuse us. Or we can change the scale of items seamlessly with ease. We’ve seen it in popular movies and TV shows like Lord of the Rings and Game of Thrones. We probably see it far more often than we realise.
But there’s often a lot of maths and science that goes into creating forced perspective, as you can see in the LoTR clip linked above. But it doesn’t always need to be as complex as one might think. This video from John Hess explains the mathematic and photographic principles that go into forced perspective and breaks it down into simple terms.
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.