The image usually looked fuzzy as the same number of pixels (the 640x480) were stretched to fill up the full 800圆00 space. Remember when people used to scan personal pictures and use them as a windows background? Windows would take that 640x480 sized photo and stretch it to fill up an 800圆00 screen. If you can see those squares at 100% (normal size), then the image is said to be “pixelated.” Ever zoomed in on a photo to find tiny squares of colors? Those are pixels. In technical term, it’s a basic unit of programmable color on a computer display or in an image. What is a pixel? A pixel is the smallest unit of information that makes up a picture-the more the better. Understanding Pixels, Megapixels, and dpi To determine if your photo is high resolution enough for print publications, it's important to first understand how thousands of tiny little squares can make or break image quality. Eight to twelve megapixels are more than enough for capturing photographs that are the optimum resolution for print and digital publications.

Thankfully, today’s smartphone cameras are a good alternative for taking high-resolution images for a book, magazine article, or training material. Photos also help you capture the colors, life, and atmosphere of your most recent event or family gathering. Taking photographs while on a worksite or on the road is a great way to hold on to visual proof of a great installation or horrific (or sometimes funny) code violation.

How to find dpi of jpg