[KineJapan] This is Huge: Upscaling Framegrabs to 300 dpi

[Lorenzo Javier Torres Hortelano]

Dear Markus, I would be very cautious about this, because what these AI programs do is "invent" the image in the sense that they propose an image with the highest probability of resembling the real image, but it is still an invented one (everything from those 72 dpi to 300 dpi).

Therefore,  "it works" if what you intend is to show a striking image; but from my point of view it is inadmissible for research purposes.

Best,


 [cid:91671ef5-4e7c-4442-8f05-e2cbf59c42a0]

Lorenzo J. Torres Hortelano

Vicedecano de Investigación y Relaciones Internacionales

Vice-Dean of Research and International Relations

Profesor Titular (acreditado catedrático) / Full Professor

レイ・フアン・カルロス大学　コミュニケーション科学学部 教授 (日本研究）

Universidad Rey Juan Carlos

Facultad de Ciencias de la Comunicación

Departamento de Comunicación Audiovisual y Publicidad

Edificio de Gestión - Decanato

Camino del Molino s/n, 28943 Fuenlabrada

+34 91 488 73 11

comunicacion.investigacionrrii at urjc.es<mailto:comunicacion.investigacionrrii at urjc.es>

lorenzojavier.torres.hortelano at urjc.es<mailto:lorenzojavier.torres.hortelano at urjc.es>

CV URJC <http://gestion2.urjc.es/pdi/ver/lorenzojavier.torres.hortelano>  - ResearchGate<http://researchgate.net/profile/Lorenzo_Torres> - Academia.edu<https://urjc.academia.edu/ljtorres>

http://theylive.eu/


________________________________
De: KineJapan <kinejapan-bounces at mailman.yale.edu> en nombre de Markus Nornes via KineJapan <kinejapan at mailman.yale.edu>
Enviado: viernes, 8 de diciembre de 2023 12:11
Para: Japanese Cinema Discussion Forum <kinejapan at mailman.yale.edu>
Cc: Markus Nornes <nornes at umich.edu>
Asunto: [KineJapan] This is Huge: Upscaling Framegrabs to 300 dpi

I was prepping a photo for an upcoming publication and made a huge discovery I'd like to share.

I had a photo I grabbed off the internet that I really wanted to use. I secured the rights, but the online photo was only 72 dpi and 300 X 168 pixels. Small. Very small.

So I met the photo's owner and we took the printed photo to a place to get a scan done. When I got home, I was shocked to find they scanned at 72 and used a setting that blew out all the greys. Incredible. It was such a production to get the scan done that I fired up Photoshop to play and see what could be done.

I discovered that recent versions of Photoshop have the ability to upscale photos. There are a few techniques to wrap your head around, so it might be tough if you don't know Photoshop. But here is a tutorial that introduces some key moves:

https://youtu.be/lprshxl46ac?si=2dgRkd4LVDXJTmTH

There are a few other tutorials out there. This is one of the more useful of the bunch.

(I notice that Topaz and some other software is offering upscaling functions as well.)

This is huge for our field. Framegrabs from DVDs and most digital movie files are only 72 dpi; for printing on paper you need at least 300 and a size set that's at least as big as the printed page.

Usually, when you expand the size of a small photo you get pixelation. Photoshop can now smooth it all out! I was able to bump up the tiny image to 300 dpi. There are various changes to the image, so it requires tweaking. And I didn't test this much, so there might be unwanted artifacts or changes to the image that would make image analysis tricky. But it works. I think it's a game-changer for publishing in film and media studies.

Markus




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