Hi there, Sorry if this topic has been touched on before, but I had a look and couldnt find anything. What is the best way to enlarge a photo but not to loose the quality? I dont need to make it any size silly, but just to enlarge some photos without loosing quality. Cheers Dave
4 Ways of Enlarging Digital Photos Thinking of enlarging digital photos? Why not! After all, picture perfect shots are not meant to be stored away and viewed only occasionally. They deserve to be displayed. And displaying large photos exude more impact than—uh—4x6 ones. Want to try it yourself? Then read on, and discover: * the different ways of enlarging digital photos * the problems you might encounter * and some tips about pixel sizes before you print your enlargements. First, it all starts with pixels. A pixel is a dot of color information. And enlarging digital photos is actually just adding new pixels into the photo. That's why its dimensions (width and height) increase. This process where the computer adds new pixels into the photo is called interpolation. In this process, an image editor enlarges a digital photo by analyzing the surrounding pixels. And enlargements vary depending on the algorithm used. For example, enlarged digital photos are more pixelated when using nearest neighbor interpolation. That's because in this method, the computer simply copies the color of the adjacent pixels. This makes the individual pixels more visible. Unlike in bilinear or bicubic methods where the edges are smoother. Perhaps you're wondering, what software is needed when enlarging digital photos? Actually any image editor will do. But some image editors offer more kinds of interpolation than others. So how do you enlarge digital photos? Here's how... Four ways of enlarging digital photos Generally, there are 4 ways of enlarging digital photos: * Manual resizing in your image editor * Automated actions * Use of special software * Have imaging companies enlarge them for you Let's look at the first option... Manual resizing in your image editor This is the most common way we enlarge digital photos. Let's say we want to double the size of the ff picture. Here's how to do it. First, launch the Image Size option or the equivalent command in the image editor you use. It's usually under the Image menu. You'll see the current width and height of the photo. To enlarge the photo, simply enter larger values in the width and height text boxes. You can also enlarge your digital photo by percentage of the original. In our example, let's double the width. The height automatically recomputes. To avoid distorting your enlarged digital photo, preserve the ratio to the original by checking the Constrain Proportions option in Photoshop. In Irfanview (another image editor), it's Preserve aspect ratio. This checkbox is usually located at the bottom of the resize window. go here to read the rest http://www.digitalphotofix.com/enlarging-digital-photos.html
