Author: tvalleau

DPI, PPI, pixels and size or why 2000 x 3000 @ 72 DPI makes no sense

It’s surprising how often I see a call-out, a request, for a digital image intended for use on a website like “2000 x 3000 @ 72 dpi”. That’s actually nonsense. But first, here’s how dots per inch (dpi) works with images:     Lets say you have a line made up of exactly 100 dots. […]

Monitor checking / test

Here: MonitorChecker is a great Photoshop file, with several layers, each of which you can view on your monitor as an aid in determining how well your monitor is calibrated and profiled. Highly recommended. Free, but requires an email sign-up. I joined them several years ago, and get an email once every blue moon. (Oh, […]

Yeah, but is it Art (transcript)

Well, a journey that began a year ago has finally arrived at its destination, and I have at last posted the text (as a PDF) of my talk at the Center for Photographic Art in January of this year. The zipped file is here: http://transfer.pronet.link/transfers/Yeah-but_is_it_Art-.zipand the unzipped pdf is here: http://transfer.pronet.link/transfers/Yeah-but_is_it_Art-.pdf Fair warning: this is […]

Fixing over-sharpened images in Photoshop

Here are two approaches to fixing over-sharpened images in Photoshop. Both rely on the blending mode you are using. The first is “before the fact” – that is, if you have not sharpened the image yet, do this: 1) duplicate the image, which will place an identical copy above your base layer. 2) do your […]

My friend, Al Weber

Al Weber  passed away Feb 27, 2016. He was my friend, although others certainly knew him better or longer. What we shared, he shared with all: his love of photography. Because we both had a similar sense of simple designs and abstracts, we enjoyed sharing our images with each other.  More than any other single […]

Show at The Triton Art Museum

Actually, this sorta belongs in the “Events” blog, but that’s a text-only blog, so here’s the poster for the show. I hope my readers get a chance to come by and see the images.  

Extrapolation: is the printer driver the same or better at enlargements?

I’ve seen this all over the web: “Don’t bother with fancy and expensive extrapolation software. Just let the printer driver do the enlargement. It’s just as good, if not better.” Overly optimistic, I’d say… but you tell me. Below is the same image extrapolated to 300% of the original size. On the left is the […]

borderless printing on an Epson 9890 – solved

I’ve had trouble getting a 24” borderless print on my Epson 9890. No matter what I did, it was off by at least an eighth of an inch, (and often more) cause me to lose details on the edge, not to mention ending up with a print that was less than 24” wide.  In many cases, […]

“Up-Rez” – “Extrapolation” or just “enlarge”…

“Up-Rez” – “Extrapolation” or just “enlarge”…   (UPDATE:  May 12, 2021. As technology advances, things change. Today, you will get the best extrapolation from Topaz Gigapixel AI, or Photoshop’s Enhance/Super resolution. The latter will only double the dimensions, while Gigapixel will let you choose the size. Both of these will take  some time to complete, […]