How Much Can You Uprez, or, What is the Limit of Image Interpolation?

How much can you blow up an image or video before it becomes unacceptable? This article tests to find the magic uprez or image interpolation number.

What is Color Correction or Color Grading?

The simplest explanation of color correction. What is it, what are the three groups of color correction, and what software and hardware do you need?

Notes by Dr. Optoglass: Color Bit Depth, Middle Grey and White Balance of the Human Eye

Topics Covered: Color Bit Depth Middle Grey Whiteness and White Balance Colors, like features, follow the changes of the emotions – Pablo Picasso We have already seen that the color space of the eye, as defined by the CIE 1931 XYZ color space, estimates about 10 million colors for our vision. The word size required […]

Notes by Dr. Optoglass: The Megapixel Counts of the Human Eye

Topics Covered: The Megapixel Count of the Human Eye Rule of Thirds? Whenever I arrive on a real location, I have to move around and work out what the best angles are going to be. When I was moving around with the lens, I discovered things that the naked eye would not have – Pedro […]

Notes by Dr. Optoglass: Airy Disk and Pixel Density of the Human Eye

Topics Covered: The Airy Disk Diffraction Pixel size of the Eye Pixel density or resolution of the Eye Everybody thinks they know what art should be. But very few of them have the sense that is necessary to experience painting, that is the sense of sight, that sees colors and forms as living reality in […]