How to zoom a photo with GIMP: Also thanks to my suggestions, you are slowly learning how to use GIMP. You have already managed to effectively retouch several photos, but now you would like some more information. You would like to learn how to use the zoom functions to work on images down to the smallest detail with precision.
Well, let me tell you: you’ve come to the right place at the right time. With today’s guide, we will see in fact how to zoom a photo with GIMP making the most of all the functions included in this excellent free photo editing software. Come on, take some time off and let’s get to work right away!
Let’s start with the basics, that is, from how to zoom a photo with GIMP to focus attention on a detail of the image you are working on. There are tons of zoom options in GIMP, the simplest one is to select it zoom tool from the program toolbar (the magnifying glass icon) and draw a small rectangle with the mouse on the area of the photo to be zoomed.
Alternatively, to perform a generic enlargement, you can select the zoom tool and click on any point of the image. To decrease the zoom level instead of enlarging it, press and hold the key Ctrl keyboard (cmd on Mac) while clicking.
Another way to quickly change the general zoom level of the photo is to right-click anywhere on the photo, select the item View> Zoom from the menu that appears and select the desired magnification level. If you prefer to use the shortcuts from the keyboard, mark these convenient commands:
- The “1” key on the keyboard allows you to reset the zoom level to the default level (100%).
- The “2” key on the keyboard doubles the zoom level of the image (200%).
- The “3” key on the keyboard brings the zoom to 400%.
- The “4” key on the keyboard brings the zoom to 800%.
- The “5” key on the keyboard brings the zoom to 1,600%.
- The “+” key on the keyboard gradually increase the magnification level of the photo.
- The “-” key on the keyboard gradually decreases the magnification level of the photo.
- The “Ctrl” key on the keyboard (or “cmd” on Mac) associated with moving the mouse wheel forward or backward, gradually increases or decreases the zoom level of the photo.
I would like to point out, then, that for precision work you can activate the display of the image in mode Grill selecting the appropriate item from the menu View by GIMP. This will help you, along with the zoom, to retouch even the smallest areas of the photo you are working on in a precise manner.
You want to zoom a photo with GIMP to increase the resolution without sacrificing excessively the quality? It is not an easy feat. You should know by now, when you zoom in on an image, the grain effect is assured, but working a little with the filters you might be able to get interesting results.
First, resize the image by selecting the item Image scale from the menu Image by GIMP. In the window that opens, then set the item Sinc (Lanczos3) from the drop-down menu Interpolationtype the resolution in length or height you want to apply to the photo (the aspect ratios are automatically preserved) and click on the button OK to complete the operation.
Once the image is enlarged, you can try to improve its appearance by selecting the item Unsharp mask from the menu Filters> Enhancement of GIMP and trying to optimally mix the various parameters of this effect. Also, to remove some “noise” from the image you can test the effects of the filter Stain removal present in the menu Filters> Enhancement of GIMP on it.
Finally, I remind you that using a free add-on called Liquid rescale you can increase the size of the photos in an “intelligent” way, leaving the most important parts of the image intact and automatically filling the added portions. I told you how to use it in my guide on how to resize an image with GIMP. When finished, when you are satisfied with the result, you can save your zoomed photo by selecting the item Export from the menu File