4/6/2023 0 Comments Reviews of topaz dejpegYeah, I only rarely use Sharpen AI or Denoise AI on problem photos.Ĭome back and let us know how converting JPEGs to DNG works out for you.Įxperimentation with various old jpegs (some from a 2004 Canon G5 and some from scanned slides) revealed these factors:ġ Topaz Gigapixel used as an improver (no increase in size) of a jpeg via a transformation from 8bit jpeg to 16bit dng or tif seems to work as well as or better than using Topaz jpeg-to-RAW converter in the same way. JPEGs can already be edited a bit, but more extreme editing doesn't work so well on a JPEG. I may give it a try using Gigapixel and then try to do the same edits in PS/ACR on the JPEG and the DNG and see if I notice any differences. If that is true then there really is no longer a need for the JPEG to RAW product. I don't know, but I suppose that Topaz may have needed the code from JPEG to RAW in Gigapixel anyway to do its work and Gigapixel has the additional functionality of being able to enlarge also. And perhaps batch processing can be configured (with Topaz and with Light Room) to make it worth upgrading allof those rather tatty old jpegs. Not every picture from that time is worth the effort of applying a Topaz AI upgrade to IQ followed by a re-edit in Adobe ACR to improve it even more - but a significant portion are worth it. I's assumed I'd be forever stuck with those photos at that quality - which looked fine on the 17" monitor I had then but now show their poor IQ on the 4K monitor I eventually migrated to in 2021. In 2004 - 2007 memory cards were very expensive and i was less well-off so the standard quality jpegs were taken just to enable more than a dozen photos on my single 512Mb memory card of the time. The photos I'd apply such a tool to are largely 8bit jpegs of 5MP taken with basic, rather than high quality, jpeg settings. but, as the video opines, it does look like Gigapixel AI is including at least similar (perhaps identical) processing to that of Jpeg-to-Raw AI in converting from 8bit files to 16bit RAW file structures of the same pixel-resolution. I've had a look at the video which convinced me to download the Gigapixel AI trial. Gigapixel AI is still being developed and new versions come out from time to time. TOPAZ GIGAPIXEL AI: Convert JPEG Files to RAW (DNG) Files I read that Topaz seems to have stopped development on the JPEG-to-RAW converter and that using Gigapixel AI you can do the same thing by selecting 1x for the image enlargement (i.e., no enlargment) and saving as a DNG file. This has never really been true (consider any image editor's ability to increase the number of pixels via various simple interpolation methods) but results from the likes of Photoshop's "image size" tool have never been very good and have never turned 8bit images into 16bit images. It's an old trope that "no image editor can put back information that wasn't captured by the sensor or the camera's output file". Has anyone else tried this Topaz program? What sort of results did you obtain and are they (i) worth having and (ii) not achievable with other software? (Yes, I know the Canon G5 could do RAW images but in those days I couldn't afford the very expensive larger memory cards necessary to hold them). Yet it has enabled me to take some old 8bit camera jpeg images from the beginings of digital photography (my first were with a Canon G5 in 2004) and improve them in a way I couldn't with only Photoshop tools. This Topaz gizmo does seem to need careful choice of its simple settings to avoid an overcooked look or the presence of various artefacts. The number of pixels remain the same yet the DNG results seem to be able to show more detail as well as a greater tonal and colour "density" to enable edits that don't immediately produce banding or other artefacts common with fiercely-edited 8bit jpegs. In doing so, it supposedly uses its AI to interpolate the additional information that it inserts into the 8bit file structure to turn it into a 16bit file. It can take an 8bit jpeg input and convert it into a 16bit DNG file output. Anyone tried this Topaz software gizmo yet? I downloaded the 30 day free trial, expecting it to be useless because impossible (or so we have always been told) but was really surprised to find it of utility.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |