Manage your digital photo collection better with these tips for the ImageMagick command line-driven image editing application.
Every now and then, I get questions about an optimal digiKam-based workflow. It's rather difficult to give general advice, as a lot depends on specifics. So I thought I'd share my photographic workflow for managing and processing photos in the hope that it answers some questions and provides a few starting points for users who want to use digiKam
Are you sick of low quality, blurry images from your phone devaluing the memories of your life?
Where once experts took long trips seeking rare beasts, today anyone with a camera can snap a critter and share it worldwide. Has technology opened our eyes to the wonders of nature, or destroyed a delicate art?
One of the most important decisions you face when scanning anything with your scanner is choosing what dpi ("dots per inch") to scan with. And specifically for this post, what is the best dpi to use when scanning and archiving your 8x10" and smaller paper photographic prints - which for most people, make up the majority of our pre-digital collection. Making this decision was very challenging for me and certainly a huge part of my 8 year delay. The reason for this is that dpi is the critical variable in a fairly simple mathematical equation that will determine several important outcomes for your digital images.
One of these two file formats has lots of benefits for you when scanning and archiving your photo collection. Read this to make sure you choose wisely!
Why do we so seldom see people smiling in painted portraits? Nicholas Jeeves explores the history of the smile through the ages of portraiture, from Da Vinci's Mona Lisa to Alexander Gardner's photographs of Abraham Lincoln.
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Thomas Smith will be speaking at OSCON 2014 about Project Gado, which has created an open source robotic scanner that small archives can use to digitize their photographic collections.
Germans march through Paris, London weathers the blitz and Hiroshima faces devastation as our Street View specialist Halley Docherty takes us back to the second world war
Today's ImageMagick lesson covers how to resize images, change case on file extensions, convert file formats, construct a proof sheet of thumbnails, and search and sort photos by their Exif data.
I returned from a recent trip with the unshakeable feeling that I'm done with cameras, and that most of us are.
Finding the right picture is hard when you don't even know what they all are.
Here's a novel way to plan your next trip. Taking a look at what groceries the locals buy is a good way to know a new place to visit, although I'd have second
Photography is a fun pastime, but it could also get you into serious legal drama. Here are four court cases where a photographer's rights were upheld.
Happy Camel is intended to combine your digital camera with your GPS device. If you feed it a list of digital photos and a tracklog, it figures out where these images were taken. It can embed this position in the EXIF-data of your photos and create a .KMZ file for Google Earth or Google Maps displaying your photos at the right positions along the tracklog. See my search for the "Rust wat"-cache (view in Google Maps) or this hike on Mt. San Jacinto (view in Google Maps) as examples. Happy Camel is distributed under the GNU General Public License.
HAB (High Altitude Ballooning) is a growing hobby where enthusiasts use standard weather balloons to put small payloads typically 100g-1kg into "near space" at altitudes of around 30km or so, carrying a tracking device (so the balloon position is known throughout the flight) and usually some sensors (temperature, pressure etc) and often a video or stills camera storing to an SD card for later retrieval. The job of the tracker is to read the location from the GPS receiver, possibly also read some sensors, and then format and send a telemetry sentence to the ground over a low power radio link. Flights only happen once the predicted path is known to be safe (avoiding airports and densely populated areas for example) and permission has been gained from (in the UK) the CAA. Here the tracking system uses the 70cm radio band (around 434MHz) using RTTY to send the telemetry down to a number of ground stations run by other enthusiasts. Telemetry from all receivers is sent to a central server that then drives a live map which can be viewed by anyone with an internet connection. The system works extremely well and has been used to track payloads at distances of 800km and more even though the transmitter is limited by UK law to 10mW ERP.
Robb Montgomery talks about what's lost now that the Chicago Sun-Times, a legend in photojournalism, fired its entire photography staff.