Time to process is very long, around 20 minutes to uprez a D850 image to 30 x 40 at 300 dpi or another run just uprezing to 150%. On my Macpro, 1 year old, 4 way, 64GB of ram High Sierra.
Comparing at 100% to same file run on Adobe CC "enlargement and preserving details", images appear very similar, thus for me hard to justify the 20 minute run time.
Hi Paul,
'Topaz A.I. Gigapixel' can run batches in the background while you do something else, although it uses a lot of 'horsepower' from your computer. Improvements will be added to the application, but it remains a very processor and GPU intensive procedure.
Here's an inside story about its development:
https://topazlabs.com/a-i-gigapixel-story/Using it for modest amounts of upsampling will only make a small difference in printed output quality. But the larger the output magnification is, e.g. to print at the printer's native resolution (600 PPI or 720 PPI), the more noticeable/visible the increased quality becomes. Obviously image content and quality also play a role. Lot's of intricate detail benefits more than large uniform areas and smooth gradients, and the higher quality the input is (e.g. properly capture sharpened and low noise), the higher the upsampled quality will be.
Topaz also seems to have no way to keep the original file name, (at least I can't figure it out) as the file name is truncated to about 25 characters. You have an option for a "output" suffix, so maybe you could rewrite the full file name, but that's not what I would want to do.
This seems to be something that can be easily adjusted, just let them know. I've previously had Service requests that have been adequately resolved, so I'd expect them to tackle this as well when someone points it out to them.
Tool may have better results on jpgs or smaller files, have yet to try anything besides D850 images.
I've also tried it on large high quality images, and the result at 600% was magnificent (although the file size may exceed the TIFF limitations when 16-bit/channel quality is selected), when compared to Benvista's Photozoom Pro or On1's Perfect Resize.
Another thing one could try (e.g. with mediocre input images), is to significantly upsample, and then downsample to the required dimensions. The upsampling will add high resolution detail at the new size, which will be used to downsample to a potentially higher quality.
Another possibility is to blend 2 images in e.g. Photoshop, one A.I. Gigapixel layer on top of a regular upsampling layer, in case that produces a more pleasing result (which remains to be seen).
Cheers,
Bart
