Category Archives: Photography

“How focal length can change your face” — and what can be done about it

Quick, interesting animation:

In a recent experiment, Prague-based photographer Dan Vojtech decided to try out different focal lengths on the same portrait photo of himself and log the effects it had on it. The difference between 20mm and 200mm are unbelievable. So next time someone says that the camera adds 10 pounds, they’re not entirely wrong – it all depends on the equipment used. 

Interestingly, a couple of years back some Adobe & Google researchers unveiled work on “Perspective-Aware Manipulation of Portrait Photos”:

[YouTube] [Via Peyman Milanfar]

Canon promises AI assistance for Lightroom culls

TL;DR: If this works, I’ll be pleasantly shocked.

I left Adobe in early 2014 part due to a mix of fear & excitement about what Google was doing with AI & photography. Normal people generally just want help selecting the best images, making them look good, and maybe creating an album/book/movie from them. Accordingly, in 2013 Google+ launched automatic filtering that attempted to show just one’s best images, along with Auto Enhancement of every image & “Auto Awesomes” (animations, collages, etc.) derived from them. I couldn’t get any of this going at Adobe, and it seemed that Google was on the march (just having bought Nik Software, too), so over I went.

Unfortunately it’s really hard to know what precisely constitutes a “good” image (think shifting emotional valences vs. technical qualities). For consumers one can de-dupe somewhat (showing just one or two images from a burst) and try to screen out really blurry, badly lit images. Even so, even consumers distrust this kind of filtering & always want to look behind the curtain to ensure that the computer hasn’t missed something. Therefore when G+ Photos transitioned into just Google Photos, the feature was dropped & no one said boo. Automatic curation is still used to suggest things like books & albums, but as you may have seen when it’s applied to your own images, results can be hit or miss. 

So will pros trust such tech to help them sort through hundreds of similar images? Well… maybe? Canon’s prepping a subscription-based plug-in for the job:

The plugin is powered by the Canon Computer Vision AI engine and uses technical models to select photos based on a number of criteria: sharpness, noise, exposure, contrast, closed eyes, and red eyes. These “technical models” have customizable settings to give you some ability to control the process.

Here it is in action: