Luminance HDR / Qtpfsgui
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Disparada en la playa de San Cristóbal.
Suenan Rose City Band de su disco "Sol y Sombra":
Suena Margo Price:
Besos.
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OpenCourseWare All Grown Up: Hal Abelson at the RIT GCCIS Dean's Lecture Series
Protests demonstrate growing demand for open access to research
Created by Adrienne Yancey for opensource.com
For the umpteenth time I passed the shamrock plant in the pot on the kitchen counter adjacent to the window. I wondered how a macro of the flowers and leaves would work as a B&W/monochrome image. So this is how it looks. Shot using window light. - JW
Date Taken: 2022-01-21
(c) Copyright 2021 JW Vraets
Tech Details:
Taken using a tripod-mounted Nikon D800 fitted with a Tamron 90mm 1:2.8 Macro, ISO100, Spot metering (but it is irrelevant since this is a manual exposure based on test shots to ensure the flower highlights did not blow out), Daylight WB, Manual exposure, f/10.0, 13 sec. PP in free Open Source RAWTherapee from Nikon RAW/NEF source file: set final image size to be 9000px wide, crop a little off the top and left side to tighten the composition, convert to B&W/monochrome, using the channel mixer and reduce the green and red channels, use the Shadows/Highlights tool to recover highlight detail, boost black level slightly to darken the background, sharpen (edges only), save. PP in free Open Source GIMP: use the levels tool to get a good base tonal range but adjust the white output to darken the white flowers a bit and retain texture, add a non-destructive dodge/burn layer and darken the overly bright flowers along the left edge and also brighten the highlights on the two dominant leaf groups, create new working layer from visible result, sharpen, save, add fine black-and-white frame, add bar and text on left, save, scale image to 6000 px wide, sharpen, save, add fine black and white frame, add bar and text on left, save, scale image to 3000px wide for posting online, sharpen slightly, save.
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Created by Adrienne Yancey for opensource.com
Recently, while at McMaster Sick-Kids in Hamilton, Ontario, I was looking out a window down into one of its many courtyards. In this case the courtyard served third and fourth floors offices in the Southwest of the building. Unfortunately, these smaller courtyards seemed not to offer any opportunity for access by the general public. The harsh mid-day sun and the concrete pretty much ruled out colour, so I opted to convert too black-and-white/monochrome to get rid of any subtle residual colour hints. The windows, as implemented in this brutalist architecture, had rounded edges in their framing, resulting in an architectural style that could perhaps be deemed a more gentle brutalist form, or perhaps Nouveau Fortress style. An image for a Monochrome Monday. Enjoy. - JW
Date Taken: 2022-03-01
(c) Copyright 2022 JW Vraets
Tech Details:
Taken using a hand-held Olympus OM-D EM-5 fitted with an Olympus M Zuiko 14-42mm 1:3.5-5.6 II lens set to 22mm, Program mode mode, Auto WB, Matrix metering, ISO200 (Auto ISO), f/9.0, 1/400 sec with an EV-0.30 exposure bias. PP in free Open Source RAWTherapee from Olympus RAW/ORF source image: set final image size to be 8000px wide, convert to B&W/monochrome, enable Tone Mapping at default levels, enable Dynamic Range Compression at default levels, use the Graduated Neutral Density/GND tool to darken the brighter right wall to better match the rest of the frame, boost Contrast in L-A-B mode, boost Black Level sightly to get a darker shadow area, use the Shadows/Highlights tool to recover more highlight detail and also recover some shadow detail, apply a little noise reduction, sharpen (edges only), save. PP in free Open Source GIMP: fine-tune overall contrast and saturation, sharpen, save, scale image to 6000px wide, sharpen, save, add fine black-and-white frame, add bar and text on left, save, scale image to 3000 wide for posting online, sharpen, save.
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Bridging the Boxes: Hacker Matchmaking in Upstate New York, The Open Source Way
Teaching open source: Team operating principles that can be used on any project
Created by Islam Elsedoudi for opensource.com
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Created by Islam Elsedoudi for opensource.com
Revisión del downloading MP3 tras las declaraciones de Bill Gates sobre Open Source, licencias CC y comunismo. Lo malo es que no recuerdo donde la encontré.
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Social production as a new source of economic value creation
Empowering Natural Leaders in 'Facebook Generation' Ways
BetterMeans: a new app for running your organization the open source way
What does Google's management change say about the open source way?
Leadership in open source communities
I'll have the oolong, with a splash of open source
How is your organization faring in the war of control vs. freedom?
Busting bureaucracy with radical management
A distributed social workforce drives profit and performance
Created by Libby Levi for opensource.com
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Introducing hands-on computing in secondary education
Students in Los Altos delight in using Inkscape drawing program
Created by Libby Levi for opensource.com
Do you see the kids on top of the bridge?
It took a bit of patiences to get a shot with MOST of the visitors out of frame.
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Five sites for open source healthcare
Todd Park, CTO of Health and Human Services, on improving healthcare with open data
Can collaboration heal rising medical costs?
Harnessing the power of data to improve health
Open health with the quantified self
Created by Islam Elsedoudi for opensource.com
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Scholarships for open source contributors
Created by Libby Levi for opensource.com
Happy Monochrome Monday!
Fellow Bando de Kvar (www.flickr.com/groups/2472126@N24/ ) member Matt (www.flickr.com/photos/taggartjm/ ) and I were early for one of the irregular meetings of the Bando so we headed off to Jordan Harbour to get some photos in and kill some time. At Jordan Harbour, the creek named The Twenty, or more completely the Twenty Mile Creek, finishes its Northbound journey off the Niagara Escarpment and empties into Lake Ontario. A small beach exists at the mouth of The Twenty and over this past non-winter, several severe storms have battered the area. On this day we were into a strong gale and the beach was once again taking a beating from the waves on Lake Ontario. This spot is regularly visited by fishermen and it appears that on one such occasion, a lawn chair was left behind, possibly in a ‘safe’ hiding spot for next time. Not safe enough it seems. The storms seem to have took their toll on it as well as the shore. Needless to say, the chair will not see more use and has become simply more beach debris. - JW
Date Taken: 2017-04-07
Tech Details:
Taken using a hand-held Nikon D7100 fitted with a Nikkor 18-105mm VR lense set to 18mm, ISO 100, Auto WB, Aperture priority mode, f/6.3, 1/320 sec. PP in free Open Source RAWTherapee from Nikon RAW/NEF source file: scale image to 9000x6000, set exposure to (approx) 1/2 stop over as-shot, increase contrast and Chromaticity in L-A-B mode, sharpen, save. PP in free Open Source GIMP: duplicate the image with the top layer dedicated to the sky and the bottom layer dedicated to the foreground, add a black/transparent layer mask to the top/sky layer, paint the sky layer mask with a soft-edged white brush to cover the entire frame above the horizon line, adjust the sky layer image section to increase contrast and darken it to bring out the clouds, adjust the tone curve of the bottom/foreground layer to get a good range of tones albeit with a darker ‘look’ more like the conditions when the shot was taken, create new working layer from the visible results, sharpen, save, scale to 6000x4000, sharpen slightly, add fine black-and-white frame, add bar and text on left, save, scale to 1800 wide for posting, sharpen very slightly, save.
After buying a batch of filters from ebay. I found the 85A + 85 filters (combined) give an interesting effect. So, I took a walk around the block shooting various things.
The white balance was adjust in-camera when the photo was taken. I also used bracketed photos and HDR to increase the dynamic range.
Notice the hill in the background still has green grass.
Taken with a 650nm IR filter. using a full spectrum modified NEX-5N.
Post production:
3x exposure bracketed images were combined to remove noise and increase the dynamic range. Photomatrix software was used for this. (Highly recommend this product.)
For "Golden IR" effect. Simply swap the red and blue channels in Photoshop.
No masking or per-pixel manipulation was done.