The more pixels = more detail = higher resolution. Resolution is the amount of detail in an image. If an image on a screen is 1920x1080, then there are 1,920 pixels from one side of the screen to the other and 1,080 pixels from top to bottom. Think of them as a unit of measurement for resolution.
![online image resizer by pixel online image resizer by pixel](http://download.bitsdujour.com/software/screenshot/reshade-online-image-resizer-100-credits-xq4bq.png)
Pixels are tiny squares of color and information that make up an image. Photos viewed on the web will be compressed for easier and faster downloads. This is because there are different image resolutions for printing photos vs. Often times, pictures from our digital cameras are very large. Resize: To change the dimensions of an image file which can reduce file size.
![online image resizer by pixel online image resizer by pixel](https://www.imagesplatform.com/mohsin_site/uploads/2021_08_17/resize-image-to-1920x1080-pixels.jpg)
(Anything less than that will feel grainy to you since you’re used to better).
![online image resizer by pixel online image resizer by pixel](https://i0.wp.com/9to5google.com/wp-content/uploads/sites/4/2022/04/changelog-36.jpg)
(So a screen that was 720 pixels wide back when there were CRT tubes would have been 10 inches wide. Much of that has to do with the fact that your brain will adjust the image, but there is also a maximum amount of resolution your brain can perceive If you step back and look at the above Ks from across the room you probably won’t notice much difference. But in a similar manner to the screens above, a lower PPI will result in a grainier image. The next thing that matters is Points Per Inch, PPI, or Dots Per Inch, DPI.
#Online image resizer by pixel 720p
But it likely won’t look as bad at 720P even though that screen is more grainy. At the same time an image that is tiny, say 1600 x 1600 pixels, that gets stretched out onto a 4k screen will look terrible.
![online image resizer by pixel online image resizer by pixel](https://i.pinimg.com/originals/72/70/b4/7270b494cb9e259dddcd9648edcec716.jpg)
Now all three screens can display the same image, but the one above cannot go into as much detail as a 4K image could. If you look at the below image you’ll see what I mean. But each of those resolutions is actually made up many tiny individual dots. You might be familiar with terms like 720P, 1080P, and 4K. So however similar a photo will be to the real thing, it’ll never look exactly the same, and similarly, as you alter the sizing of an image things will change slightly.
#Online image resizer by pixel code
Although I won’t get too far into the math behind it, or how specific screen sizes can affect things, it is important to realize that any image you see is a bunch of code on a computer, that gets translated by whatever screen you see it on. Altering the sizes of images is a tricky business.