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How to enlarge an image using Topaz Gigapixel AI

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This article will walk you through how you can use Gigapixel AI to increase the resolution of images which might not be able to be printed at larger sizes, or which might be too small to comfortably use with Gooten merch products.

 

To download Gigapixel, which is available for both Mac and PC, you will find it on the Topaz Labs site, here: https://topazlabs.com/gigapixel-ai/

Please keep in mind that this is not free software. There is an unlimited free trial with will allow you to test its capabilities quite comprehensively, although all images processed before purchasing the software will be watermarked.

 

This software is quite system-intensive, and for best results you should have at least 8GB of memory in your computer, and a dedicated Graphics chip or card with 2GB of RAM. If your computer is older or lacks memory, you will likely have a poor experience with this software.

 

Important: The article will assume that your existing images are both sharp and are in focus. If your images are not of very high quality, you might find that this tool will be of limited use to you, in that if you input low-quality images the images it will output may be larger and yet not suitable for print. While Gigapixel can enlarge a small image, for poor quality images it will often also enlarge any flaws in the image.

 

This is the default Gigapixel AI page, which you’ll see when you open the program on your computer.

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The fastest way to start is just to drag an image from your computer into the Gigapixel app, where it will be opened. Alternatively you can click on the Browse button, and navigate to your image or images from there, and then select them to open here.

 

This is the view when you have added an image. You’ll see the original image on the section to the left which has been enlarged to match the right, and beside this is the preview of the upscaled image. Further on the right is a zoomed-out view of the source image, which shows a white box that indicates the section currently displayed on the two large sections to the left.


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Below the thumbnail on the far right are the options which control how the image is processed and the size at which it is going to be output.


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The first option controls whether the image is updated automatically whenever you change the view of the image; if this is switched off, you will need to manually update the preview image on the right by clicking the Update button which is next to the switch.

 

The second section, Resize Mode, controls how much larger the new image will be.

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You will see the size of the original image and the resized image at the very bottom of the app window, with the original image resolution on the left and the resized resolution on the right.

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Next is AI Mode. This tells the program which method to utilise when processing the source image. 

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Note: For this option I would recommend checking what the preview looks like for each setting, as you may find that different images will work better with different modes.

 

Next are more specific settings controlling Noise and Blur in the source image. In most cases it may be best to leave it on Auto, and let the computer determine the most effective values to use here.


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The last two options are situationally useful, and I would recommend just switching them on to check if they improve the quality of the processed image and then disabling them if it doesn’t have a noticeable effect. And below that is the Save Image button, which will instruct the program to begin to fully process the source image.

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A new dialogue window will appear, where you can control the settings of the new image

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However unless you have specific requirements, you should be able to just click on Save, and the program will start working




On this page you can follow the progress of the process, the speed of which will depend on the capacity of your computer and whether you are using the computer for anything else at the time. (For this part of the process it’s usually best to leave the computer alone while it works, as this is quite demanding on the system and using the computer for anything else can slow down the process quite noticeably)


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And when the process is complete, you’ll see this page, showing the queue has been completed and you will have your new image saved to your computer, ready to use on your site.


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Note: If you’re creating images to replace existing images in products in an Art Print Store, this article which explains how to merge new images into existing products may be useful for you:
How To: Replace Images After They Have Been Uploaded To An Art Print Store 
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