DPI
Pixels perfected - navigating the world of DPI...
What is DPI in photography?
DPI refers to the number of printed dots within one inch of a printed image. The best result you will get with paper photos is between 300 dpi to 600 dpi.
How do I know the DPI of an image?
There are many ways to check or change the DPI image.
Like File Explorer in Windows, you can see the DPI of an image, while the photo editing app allows you to change the image size or DPI resolution.
The Windows file explorer app is the easiest way to check an image's DPI and resolution, so let's follow the step-by-step process.
- Click the window logo in the bottom left corner and write file explore on the text bar. You can also open the file explorer app to click the window and E button on your keyboard simultaneously.
- You can also search for the location of the image that you want to check by using File Explorer.
- Place a right-click on the image, then click on properties at the bottom of the list.
- In the properties list, click on the Details tab.
- Scroll down to the "Image" section of the menu.
- In the last bar, you can see two options for your image DPI: "Horizontal Resolution" and "Vertical Resolution."
How does DPI affect resolution?
The matrix of the dots is enough to fool the human eye because digital print is just an optical illusion.
A fine dotted pattern makes a beautiful image, and viewers might imagine seeing it in real life. To get that fine image, you must meet the following conditions:
- The density of the dots
- The size of the image
- The distance from the observer must be at a suitable range for our illusion to work
It's basically an accurate measurement to judge how finely we have to print so that our image comes smooth and detailed.
DPI vs. PPI
DPI is doing well when it comes to the printer, but when we are talking about digital graphic designs and image sizes, confusion begins between two different concepts: PPI (pixel per inch) and DPI (dot per inch). This is because all image files, digital cameras, and electronic screens work in pixels. DPI is all about how we calculate the density of pixels.
In other words, DPI refers to the number of printed dots within one inch of a printed image. PPI refers to the number of pixels within one inch of an image on a computer monitor.
What is a good DPI for photos?
Generally, a 600 DPI scan is the best image resolution and pixel count for photos printed on paper.
In the end, even the best design image can be ruined just because of poor resolution. That's why DPI is very effective in photography.