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These two images are screenshots from a program I just wrote in Processing. The were taken just a few seconds apart under the same lighting conditions. The dramatic change in perceived lighting is due to a selective emphasis that has been applied automatically, in live, real-time, to images coming from the webcam on top of a modern iMac.
A region of interest is selected by the user by either moving object or the camera to place the interesting region in the center of the image. Given a rudimentary guess of a foreground-background segmentation using a circular lump about the center of the screen, the algorithm begins to repeatedly build a model of color likelihood given a segmentation label (a value between 0 and 255) then relabel each pixel with its most likely label. At the end of each pass the label image is smoothed with a small Gaussian kernel. Passes are synchronized with grabbing of new frames from the camera so, in this way, the label image from the previous frame becomes the prior labels for the next frame, exploiting temporal coherence.
The combined sharing of information across space and time allows the algorithm to track moving regions of interest even under drastic appearance changes. This comes with a trade-off for the region of interest shifting undesirably in some occasions. Though it is uncommon, it is quite possible for the region of interest to become disconnected. In the right image, several distinct blobs are visible on the door.
To create visual emphasis, the areas outside of the region of interest are darkened and blurred slightly.
Source and binary (128k, requires quicktime for camera access): adamsmith.as/typ0/sketch_070813a-001.zip
This is a rather ugly tree to most but it is a favorite for me. Looks like it has had some struggles in it's lifetime, like most of us. I believe it lost it's top in a lightning strike. I just played with some Elements tools until I got something that pleased me.
Edited (and heavily processed) ISS043 image of Hokkaido and northern Tohoku at night with lots of bright cities.
It all started when we were cleaning out the photo club's locker. We found an old, expired disposable camera inside and nobody knew where it came from. Instead of throwing it out, I took it home and shot the roll in one weekend, eventually cross-processing it in some leftover E6 chemicals I had from my slide film processing. Since this is C41 (Color Negative) film, processed in E6 (Color Slide) chemicals, I expected some wild colors and strange effects. The result is actually strangely accurate to real life...
Part of the stream coming off of Decew Falls by the Morningstar Grist Mill.
White Sands Missile Range Museum, New Mexico, USA
Submitted by Shane Thomas @ Vicious Bytes
An original warning sign that was displayed in numerous areas around the base during the cold war.
Jordan River bank. Oct. 2006
we were babysitting her for a month and i just fell in love within seconds.
- cross processing
Noticed a super bright star (Venus?), the brightest I've seen with my naked eye so I grabbed my Nikon for these shots.
Nikon D600 / Nikkor 85mm F1.4 ai.
March 3 2015.
I am using the cyanotype as one layer in a three color, CMY gum print. The other layers will be on their way soon enough.
Stoked that my illustration work for Sport Chek's #MyNorth campaign got into Communication Art's illustration annual 2015.
Heavily processed version of a Library of Congress ukiyo-e print of a persimmon, lonely on the tree with only a few leaves to keep it company.
drawing with code that I am modifying which is available through this site: www.generative-gestaltung.de/code. Connected to the book Generative Design
Today I tried to re-process Pillars of creation by using the raw data that I found on MAST. I've processed the RAW data using 5 different softwares:
First one was FITS Liberator which I used to stretch the image and make faint dust visible.
Second one was SiriL which I used to compose RGB channels and calibrate the colors on the image.
Third one was GIMP which I used to change the value of the image.
Fourth one was Topaz Studio 2 which I used to clear, denoise and sharpen the image.
Last one was Snapseed which I used to clear big artifacts on the image by using healing tool.