Tag: landscape

Jul

I do landscape drawing too

For whatever reason, I was seized by the urge to try drawing. I was browsing in a Times bookstore, and I happened on this drawing kit. It consisted of a CD of about an hour of an artist teaching you how to draw. There’s also an instruction book for you to follow along. That was […]

Oct

The math behind 360 degree fisheye to landscape conversion

I wrote an article to convert a 360 degree fisheye image to a landscape view some time ago. I also realised I didn’t explain the math very much, mainly because I thought it’s fairly obvious. On hindsight, it doesn’t seem obvious. My apologies. Commenter Eric pointed out a math technique called linear fractional transformation. It’s […]

Oct

Convert 360 degree fisheye image to landscape mode

In this article, you will learn how to flatten a 360 degree fisheye image back to its landscape panoramic form. But first, what’s a 360 degree fisheye image? [WARNING: graphic-intensive article ahead] [image by gcardinal] It’s created by using fisheye lens in your camera, take a bunch of pictures using that, and use stereographic projection […]