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This is a comparison of three resizing algorithms.
Link to full size: www.flickr.com/photos/kinematic/13783164545/sizes/o/
The first is the common method of Bicubic resizing (200%) with unsharp mask of 3 pixels radius applied.
The second option is my own custom workflow of 4 algorithms combined with super resolution (which I call resolution +) and no sharpening.
The third is one used by programs like Perfect Resize and many other popular resizing tools, Lanczos resizing algorithm with RL Deconvolution sharpening.
The Lanczos is definitely an improvement over the Bicubic method, giving a much crisper cleaner resize. However RL Deconvolution does tend to over-sharpen things a touch. I might even say that it artifically sharpens things that shouldn't be sharpened (note the little white sharpened specks on the rock).
My hybrid method is still better suited reducing essentially diffraction issues and recovering details. Especially viewed at 100%, it appears not just as a resizing of the image by 200% but an actual increase in resolution without the artifacts that seen in the other two methods. Although it is a little labour intensive, with RAWTherapee workflow the hybrid method definitely yields favourable results.
It is not something that one might want to do on every image, however the effort is worth it for those times that you either are resizing images for large reproductions or you're cropping heavily and need to recover some details.
Experiments like this certainly disuade me from ever needing to pick up an A7r for more resolution in studio situations (which most of my clients these days rarely ever call for or need).
I'm very close to publishing my workflow and description on how this is done. The cost of software is reasonable and the technical aspects behind it have been far simplified with the introduction of RAWTherapee into the workflow.
Drawing upon the idea of the dragon curve, I wondered what other shapes could be created using similar methods. As it turns out, this form of construction is known as an L-system; they create fractal patterns by replacing a segment with a smaller version of the initial pattern molecule. The Koch curve is another example of this. I made pleats in strips of paper to create a physical analogue of this process, which enforces another parameter: because the paper changes direction when folded, the molecule affects the form differently depending on which face of the segment is up during precreasing.
A proof for the non-intersection of any pattern made in this fashion:
These patterns are produced by replacing a segment with an n-sided molecule. Imagine that each of these original segments is the diagonal of a square; these squares don't overlap because we're using 90 degree symmetry on uniform line segments.
So as long as the replacement molecule stays within the square defined by the original line segment, and doesn't intersect itself, then the pattern can never intersect.
Biological idealization of maze problem with two dimensional five element ecosphere.
One food source (cheese) in yellow, another in green, a third in purple. We also have a 'predator' domain in red and a 'disease' domain in black.
Given a common point of emergence for a protocreature, we could expect co-adaptation to occur in this model and the formation of various 'species' as the original form found various ways of making a living and split 'solutions' develop (by running a number of algorithms in near parallel).
A more sophisticated form would be to allow food forms, predators and diseases to emerge from the SAME POINT and let the whole co-adapt (by setting up a chemical -proto organic base system with cycling 'weather' and the odd catatstrophe etc).
Given a sufficiently complex model, we would be modelling planetary life. See the next image for evolutionary star diagram (polygram) of known life forms.
A screen capture from a generative animation in my first mobile game: DRIFT, the puzzle that doesn't stand still.
See more at rndsd.com/drift/
31 May 2016 - OECD Forum 2016: Lunch Debate: The Algorithmic Society. OECD, Paris, France.
Moderator: Gareth Mitchell, Presenter, BBC Click
Speakers
- Pedro Domingos, Professor of Computer Science, University of Washington, United States
- Anindya Ghose, Professor of IT & Marketing; Co-Director, Center for Business Analytics, Leonard N. Stern School
of Business, New York University, United States
- Madhumita Murgia, Head of Technology, The Telegraph, United Kingdom
- Christian Reimsbach-Kounatze, Economist & Policy Analyst, Science, Technology & Innovation, OECD
Photo: OECD/Michael Dean
Image created using particles obeying certain "gravitational" laws. Mostly variations on "accelerate toward/away from some particle unless some condition is met, in which case move toward/away from some other particle".
Made with processing (processing.org).
My 20 most popular / interesting photos as deemed by the Flickr Interestingness algorithm as of January 2015:
The individual photos:
1) The Florida Surprise, Anastasia Limestone *** EXPLORED *** (DTA_1882)
2) Green Lake in Snow (DTA_8940)
3) Sunrise at South Grand Island Bridge (DSG_8606)
4) Sunrise over Horseshoe Falls, Niagara Falls, Ontario, Canada (DSE_7473)
5) Shells At Sunset, Marco Island Beach, Florida (FL) (DSE_0392-6)
6) A Pier on Lake Erie (DSH_1363) *** Explored ***
7) The Big Bend Panorama, Letchworth State Park, New York (NY) (DTA_0260-63)
8) Fog Moving through the Genesee River Gorge at Big Bend, Letchworth State Park (DTA_0248)
9) Lake Michigan Sunset at Indiana Dunes (DTA_4362)
10) Foggy Fall Morning at Big Bend of Letchworth (DTA_0268)
11) Covered Gems of Vermont (DSH_5375-77)
12) Fog over Genesee River at Dawn, Letchworth State Park, New York (NY) (DTA_0256)
13) Full Wolf Moonrise over Illuminated Horseshoe Falls in Winter (DTA_2980)
14) The Organ of Arches, Arches National Park, Utah (UT) (DTA_5763)
15) Back to the Wonder of Watkins Glen in the Fall (DTA_8209)
16) Puddle Shot of the Buffalo City Hall (DSH_4825)
17) The Windows of Arches, Arches National Park, Utah (UT) (DTA_5796)
18) Waiting for the Night Train (DTA_9003)
19) Destination: The Organ - Arches National Park (DTA_5759)
20) Grassy Shoreline at Sunrise, Palm Beach Shores (DTA_1763) *** EXPLORED ***
...I don't think I'll ever be done with logarithmic patterns. They're just SO fun to play with.
I also think it odd that "logarithm" and "algorithm" are anagrams. More strange, that I used both words for years and haven't noticed 'til now...
Joy Buolamwini, Researcher; Founder, Algorithmic Justice League, Massachusetts Institute of Technology (MIT) Media Laboratory, USA speaking during the Session "Compassion through Computation: Fighting Algorithmic Bias" at the Annual Meeting 2019 of the World Economic Forum in Davos, January 23, 2019. Congress Centre - Betazone
Copyright by World Economic Forum / Jakob Polacsek
Joy Buolamwini, Researcher; Founder, Algorithmic Justice League, Massachusetts Institute of Technology (MIT) Media Laboratory, USA speaking during the Session "Compassion through Computation: Fighting Algorithmic Bias" at the Annual Meeting 2019 of the World Economic Forum in Davos, January 23, 2019. Congress Centre - Betazone
Copyright by World Economic Forum / Jakob Polacsek
Conduite algorithmique et La Traversée de la série Manœuvres, MA, Musée d'art de Rouyn-Noranda. 11 octobre au 8 décembre 2019.
francois-quevillon.com/w/?p=1470&lang=fr
francois-quevillon.com/w/?p=1445&lang=fr
Algorithmic Drive and The Crossing from the Manœuvres series, MA, Musée d'art de Rouyn-Noranda. October 11 to December 8, 2019.
Same idea as this, except I used a radial pleat field.
The pattern in this case seems to emerge as a Hyperbola and Ellipse, respectively; I haven't done the math yet, but I do know that if you move the initial pleats around, you'll get similar results.
Again, this is a result of the interaction between the flat-folding conditions of the Kawasaki theorem and the vector properties of pleats. Beyond that, I'm not sure of the math behind it.
Permutated connections and influence for the Viterbi algorithm. Diagram automatically shaped by omnigraffle.
A screen capture from a generative animation in my first mobile game: DRIFT, the puzzle that doesn't stand still.
See more at rndsd.com/drift/
Colorized by Artificial Intelligence Algorithm Tool from originally scanned hi-res photo from the respective source.
Credit disclaimer: I do not own the original scanned image and believe that it is in the public domain. These images have been collected from Flickr's search results and/or collected from various internet sources. If you know the link to the original image, please kindly put it into comment section as I will update the description to give full credit to the respective owner.
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Colorized by Artificial Intelligence Algorithm Tool from originally scanned hi-res photo from the respective source.
Credit disclaimer: I do not own the original scanned image and believe that it is in the public domain. These images have been collected from Flickr's search results and/or collected from various internet sources. If you know the link to the original image, please kindly put it into comment section as I will update the description to give full credit to the respective owner.
Please follow, like and leave a comment for more exiting future notifications.
My websites:
Visit my portfolio sites:
www.saatchiart.com/celestialart
www.redbubble.com/people/Motionage/shop
FOLLOW ME:
www.youtube.com/channel/UC8JtcV_EejccsUNXSK_ejcw Springs of Eden
created using processing.py.
Based on the chaos game, but cycling through a set of various polygon vertex counts, and using different weights for each cycle.
Pixel brightness represents how often each pixel has been visited.
A screen capture from a generative animation in my first mobile game: DRIFT, the puzzle that doesn't stand still.
See more at rndsd.com/drift/
Handheld Motorola Atrix 2, GingerBread
In-phone, 6 shot panorama stitch
The Ittiam Panorama algorithm for Mobile and Cellphone cameras, Smartphones and Tablets performs multi-shot combinations up to a 360 degree view. It uses intelligent image registration, intensity /white balance correction, optimal seam selection and blending methods to obtain high quality panorama images. The Panorama algorithm is part of Ittiam's Imaging SDK. The photograph was taken using an Android camera application based on Ittiam's Imaging SDK. All processing for this photograph was done in phone, unless explicitly noted.
For further information, please see Ittiam's Panorama Algorithm Web Page
Mural in the new headquarters of the National Science Foundation, algorithmic art, 11.5 x 64 feet.
Architectural glass produced by Pulp Studio (www.pulpstudio.com). You can find the software here: github.com/Ignotus-mago/NSFWall.
A screen capture from a generative animation in my first mobile game: DRIFT, the puzzle that doesn't stand still.
See more at rndsd.com/drift/