What is interpolation and does it effect the quality of my photos?
Here’s a nice explanation from Justin Karneges: Interpolation is a fancy word for a computer “guessing”. The only type of interpolation that anyone should be worried about is when an image is enlarged. Basically, when an image is enlarged, you end up with more pixels. But where did these pixels come from? Back in the old days, if you enlarged a 320×240 image to 640×480, the program would just double-up each pixel. Thus, the image looked blocky. Nowadays, with more advanced programs like Photoshop, interpolation (some even using advanced calculus) can be done on the photo while enlarging. The interpolation calculations allow the computer to pick better pixels to add to the image rather than just using the pixel next to it. This way, when you enlarge an image, the image looks a lot smoother and cleaner. Note that the amount of photo information hasn’t changed. If you look at an enlarged interpolated picture, you will see that if a person was a white dot because they were too far away, th
