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Enlarge Low Resolution Image in Photoshop

Posted on 6th September 2018
This technique may help you to “Fix” an image to make it a bit more presentable for viewing and in some cases printing purposes. There is a limit to how high an image can go, and there are two important parameters to take into account: one is DPI and the other is image size. For example, “Twice” the size will yield moderately satisfactory results. Other important thing, the larger the image the better the chance for decent result. So, just adjusting an image that is more than 3x the size from 72 to 300 dpi will never yield good results without adjusting the total number of pixels as well.

 

1 - In Photoshop, open the file the Low-Res image you want to work with.



2 - Zoom-in to check how pixelated it is and what is the zoom percentage where it is more evident. This will help you determine if there’s a chance to make it look good.





3 - double click on top of your images thumbnail to unlock the layer.





4 - Go to Image > Image size (Alt/Option + Command/Control + I) and check the “Resolution” and the “Dimensions” both in Size and Pixels.





5 - Change the resolution to 300 Dpi.  You will see that the “Dimensions” will increase. Change the “Resample” option to “Bicubic Smoother (enlargement)” and click “OK”.





6 - Go to Filter > noise > Reduce Noise and play around with the settings. Once you are satisfied click “OK”.





7 - Go to Filter > Blur > Gaussian Blur and use a “Radius” of 0.5 Pixels.





8 - Go to Filter > Filter Gallery > Artistic > Film Grain and use the following values. You can also use other filters, feel free to check it them out and experiment.





9 - Zoom in to your image to see to determine if it looks fine enough.



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