Can someone the actual meaning of 780p vs 1080p and how frame rates play into all of this? Are there other factors that play into quality as well?
In: 9
Think of pixel resolution (720p, 1080p, 4k) as spatial resolution. It is how many pixels are on screen measured by the x-axis.
Think of frame rate as temporal resolution or resolution over time.
1 frame per second is a slide show. 15fps is choppy. 60fps is smooth. You are receiving more images over time so the temporal resolution is higher. This is independent from the amount of pixels on your screen.
Think of pixels as a grid that overlays an image. An image is a whole bunch of colors, but if the pixel grid is 1×1, that single pixel will average all of the colors and become the most averagely colored pixel.
The same applies for an image that is 4k just it is at such a high resolution that each pixel averages a very accurate color. So the smaller the amount of pixels on the pixel grid, the more obvious visible pixels are, and the more they average the color of the image that the grid is “sitting on top of.”
More pixels just means a higher density of pixels. For example, four 1080p grids can fit evenly into a 4k image four times. So assuming everything else about the images is the same, you could zoom 400% into the 4k image and it would look just as sharp as the 1080p image.
I hope that explains something. I feel like I may have gotten a bit rambly and explained like you are not 5 🙃
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