How to enlarge a photo?

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How to enlarge a photo?

Many modern users are wondering: how to increase the digital image without losing quality? It happens that the picture is simply of poor quality and it is impossible to view all the details of the picture. We will talk about this problem in our article.

The process of increasing the digital image

The process while increasing the digital imageis connected, first of all, with the presence of pixels in the photograph. Let's say we have a photo of a certain size. The quality of the photo depends on the number of pixels that it contains. When the photo is expanded, its physical size will increase, but the number of pixels will remain the same. Therefore, the clarity of the image deteriorates, and the color spectrum becomes vague.

To keep the original image,you must fill all the empty pixels. This process is called interpolation. Interpolation is the calculation of missing pixels. There are special programs through which you can increase the digital image without losing quality. We'll talk about them later.

Indicator dpi

The logical unit of measure is the resolutiondpi. The abbreviation dpi (in English dots per inch) denotes the number of dots per inch. For example, for any image, you can set the resolution from one dpi and up to infinity. But the linear size of the image will change in inches or centimeters. The higher the resolution will be set, the smaller the picture becomes.

The permission formula

Resolution (dpi) = pixels / inch, where pixels -this is the size of the image in points, inch is the size in inches. As the formula shows, at once we do not know what resolution the photo will have, unless two sizes are specified (in inches and in points).

Let's say a picture has a resolution of six dpi, andThe width and height is twelve pixels. To find the physical height, you need to divide the height in points by the resolution. That is, twelve divided into six. We'll get two inches.

To learn more about how to change the resolution of a picture, you can in our article How to change the resolution of a picture.

Magnify the photo in Photoshop

You can increase the digital image withthe graphic editor Adobe Photoshop (Photoshop). In order to enlarge the image in the Adobe Photoshop graphics editor, you must perform the following actions:

  1. Open a photo in the photo editor that you needenlarge photoincrease.
  2. Go to the main menu of the program and selectthe command "Image -> Size" (Image -> Image Size). A dialog box will appear with the name Image Size. You need to make sure that the check box next to the Resample Image option is checked.
  3. From the opened lists that are located to the right of the Height and Width field, select the name percent, that is, the percent relationship.
  4. To increase the digital image without lossquality, in the Height and Width line enter the number one hundred and ten. The size of the photo will increase by ten percent. This will enlarge the picture without losing its quality.
  5. Then change the size as needed.

How to enlarge the image in PhotoZoomPro

You can also increase the digital image inthe program PhotoZoomPro. Thanks to the built-in interpolation algorithms and modern technology of S-Spline, this program gives good results. It works with many formats: BMP, JPEG, TIFF, PNG, TGA. GIF. And if you need to prepare files for interior or wide format printing, the program becomes almost indispensable. Download the program PhotoZoomPro on the official websiteenlarge photobenvista.com.

The principle of increasing the image

If you have a good source imageyou can get photos of large size without loss of quality. Consider the principle of increasing the digital image with the program PhotoZoomPro.

  1. Install and run the program PhotoZoomPro on your PC.
  2. Load your photo into the program. To do this, click "File" -> "Open".
  3. Choose a new size in percent.
  4. By default, the program has a methodresize the S-Spline Max. It can be changed to another method if necessary. But this method copes well with its task and gives good results.
  5. Save all changes in the file by selecting the command "File" -> "Save As".

Programs for increasing the size of the image

In addition to the programs Photoshop and PhotoZoomPro, there are also other programs with which you can increase the digital image. We list them.

  • Imagener
  • Resize Pro
  • Perfect Resize
  • Qimage

Now you know how to increase the digital image without losing quality. To help you also one more article from our site: How to enlarge a photo in Photoshop (Photoshop).

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