How to Upscale (Increase Resolution) of Prisma App Photos

Prisma is a brilliant app. However, it exports photos at resolution suitable for screen, but not for print. Specifically, it exports at 1080x1080, 96dpi. Fortunately, I've found a way to upscale these Prisma exports for print. The following shows you how to upscale a Prisma photo to an 8x10" size at 600dpi.


Save the photo to your desktop computer. Open it with an image editor. I'm using Paint.NET on Windows 10. Choose "Image," then "Resize."

Change resolution to "600" and then set width and height to "10." The pixel size width and height will automatically change to "6000" each. Click "OK."
Choose "Image," then "Canvas Size."

Change width to "8." Pixel size width will automatically drop to "4800." Click "OK."
Now we have to address the compression noise in the photo. Image editors usually have a feature to address this, but often refer to it by different names. In Paint.NET, we choose "Effects," "Blurs," then "Surface Blur." Change both radius and threshold to "26."

That's it! Save your photo and print with your home printer on high quality paper, take it on a memory card to Target or Walgreens, or upload to a service like Shutterfly.