How to Digitally Enlarge a Picture Without Losing Quality

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How to Digitally Enlarge a Picture Without Losing Quality

With more megapixels in today’s cameras, you’re more likely to scale a shot down than expand it. However, there are situations when raising the size of a photograph is quite useful. Unfortunately, enlarging an image without sacrificing quality may be difficult.

There are various solutions to this issue, and in this post we’ll go over two of the greatest methods for enlarging a photo without sacrificing quality.

Something to Keep in Mind When Enlarging an Image

When you raise the size of a picture, you are instructing your computer to add information. Simply put, you’re instructing it to enlarge a picture without losing information, and to do so by “guessing” what a bigger image might look like.

This means you’ll never obtain a perfect reproduction of your photo at a bigger scale since it’s a question of format and software: some programs are better at it than others, and certain photographs resize better than others. But they must all make a guess.

The amount of guessing your computer performs depends on how much you want to enlarge your picture. The more you magnify a photograph, the more probable it is that the quality will degrade. Understanding this beforehand is critical and will assist you in selecting the finest images to edit. You’ll understand what we mean if you’ve utilized upscaling with home entertainment devices.

How to Resample an Image With a 10 Percent Increase

This is a popular approach for determining how much upscaling you can get away with when expanding a picture without sacrificing quality. It works best if you’re not attempting to scale your picture to a set size, but rather aiming to blow up an image as big as possible without it looking ugly. As an example, consider this image of periodicals on a coffee table.

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This image presently has a width of 670 pixels. You can probably make out all of the writing if you lean in towards your display and squint. Right now, everything is running well and the picture appears good.

To expand the picture, we’ll use Resampling, which is the “guessing” component we mentioned previously. And we’ll be using Adobe Photoshop to achieve it. Here’s what happens when we zoom the picture up to a staggering 2000 pixels wide (simply to demonstrate the program’s capabilities):

How to Resize an Image Using Photoshop

To resize this picture in Photoshop, go to the top menu and choose Image > Image Size. Then, in the Image Size dialog box, modify the height and width. Also, make sure that Resampling is enabled and that your preset is Bicubic Smoother.

Photoshop does an excellent job of smoothing out this picture from 670 pixels to 2000 pixels. Photoshop CC has come a long way in recent years, and although this picture is obviously hazy around the borders and the lettering is not as crisp, you can still make out the most of it with ease.

However, certain features in a separate picture might easily become unrecognizable. Instead of going all the way to 2000 pixels, we’ll merely add 10% to the original picture size.

Go to Image > Image Size in Photoshop to resample to 10% bigger. Then, rather of setting the width and height in pixels, choose Percent. Type 110% and ensure that Resampling: Bicubic Smoother is still enabled.

Here’s what the picture looks like when it’s magnified by 10%:

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As you can see, it’s still rather clear. To test this, increase the brightness of your picture in Photoshop by 10% at a time until you see some graininess. Because we’re attempting to magnify a photo as much as possible while keeping image quality, experiencing graininess is your indication to quit.

If you’re going to utilize this approach, make sure that Resample is enabled in your photo-editing tool. This is how it appears in Photoshop’s Image Size dialog box:

You may also resize a picture using a software like Pixelmator or GIMP. Both are excellent and will provide a comparable alternative. If you’re fortunate, you’ll be able to choose the scaling interpolation technique (the computer’s “guessing” approach). When scaling up, the Bicubic Smoother is a suitable choice.

How to Use a Dedicated App to Enlarge a Picture

Because so many people want bigger images, there are a lot of programs particularly intended to expand an image without sacrificing quality.

Sharper Scaling, for example, is a free Windows software that claims to be better than Photoshop in upscaling. The outcomes shown on its website are extremely astounding. This tool does just one thing, and that is to increase picture size, however it is free, thus it is well worth installing.

There are fewer free alternatives for macOS, but that doesn’t imply you don’t have choices. Waifu2x is a reliable internet service. Although it may be bit unexpected with pictures, Waifu has showed some pretty great results with zooming in on an anime image and making it clear.

At the end of the day, you may simply have to test a couple of these apps to discover which one works best for enlarging your image. Above is an illustration of what Waifu can accomplish for our picture when compared to Photoshop.

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Even without zooming in, you can probably notice that the image from Waifu is extremely similar to the most recent version of Photoshop. The site’s usage of deep convolutional neural networks (what are neural networks?) makes it particularly effective at the previously described “guessing,” resulting in substantially cleaner upscaled photographs.

If Waifu doesn’t work for you, try Online Image Enlarger, Simple Image Resizer, or Rsizr.

Now You Can Enlarge a Picture Without Losing Quality

When it comes to enlarging a photograph without sacrificing quality, these two ways are probably your best alternatives. Neither is ideal, but given the limitations of technology, they are about the best we can do.

Fortunately, most phones and cameras today shoot quite high-resolution photographs, so you shouldn’t have to deal with this very often. Photoshop can also save high-resolution photos. Just remember to start with the biggest original picture you can find.

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