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La photo HDR : tutoriel complet pour créer des images HDR avec Photomatix, Photoshop ou Gimp

La photo HDR : tutoriel complet pour créer des images HDR avec Photomatix, Photoshop ou Gimp

http://www.posepartage.fr/apprendre/dossiers-techniques/photo-hdr.html

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Bracketing With Flash For Exposure Fusion and HDR I’m amazed by the number of people I talk to that are mixing flash with the bracketing shots they are shooting for Exposure Fusion (Blending in Photomatix) and HDR. Plus I’ve gotten a number of questions asking how to to shoot brackets with flash. The first question is why? l'art conceptuel At long last, I sit here on New Years eve, looking back over a year of art work. One year ago I made the biggest New Years resolution – of my life. A resolution to create a piece of art, each day for one year. Something many other artists have done before me, and who inspired me to make this ambition commitment to myself.

Resynthesizer ( home | blog ) bootchk has taken over maintenance of Resynthesizer. The latest version is available from the GIMP registry: GIMP registry page Resynthesizer is a Gimp plug-in for texture synthesis. Given a sample of a texture, it can create more of that texture. HDR and Beyond – Seeing is Believing! A Guest Post by by Gavin Phillips What is High Dynamic Range Imaging? (HDR) HDR is when you take 3-5 or 7 photos at different exposure settings, and then merge them into a single image using speciality software. 16 Digital Photography Tips for Christmas A Post By: Darren Rowse It’s just a few days until Christmas so I thought a quick tutorial on the topic of Christmas Photography might be appropriate. Hopefully this will give you some good Christmas photo ideas.

HDRI Community - HDRI capture App for Ricoh Theta 360 Camera Hello Brad, Bought the Theta and your nifty app for the iPhone. Its a great inexpensive equipment for shooting low res HDR’s. Andy Goldsworthy - Melt Andy Goldsworthy Natural sculptures by Andy Goldsworthy. "Andy Goldsworthy is an extraordinary, innovative British artist whose collaborations with nature produce uniquely personal and intense artworks. Using a seemingly endless range of natural materials—snow, ice, leaves, bark, rock, clay, stones, feathers petals, twigs—he creates outdoor sculpture that manifests, however fleeting, a sympathetic contact with the natural world. Perfect masking using a highpass 1 Open any picture that contains a big shot of a person / celebrity / whatever. I use a picture of a well known celebrity. 2 Duplicate the background layer 2 times, you should that layer 3 times then. On the top layer use Filter / Gaussian Blur: 18px. Set the layer to 50% transparency in the layers dialog.Then go to Colors / Invert. You should have something similar to my picture now. 3 Click the right mousebutton on the layer in the layers dialog and choose “Merge down”.Colors / Desaturate (average). The go to Colors / Curves and apply a soft S-curve as seen on the image below. 4 Then choose Brightness & Contrast from the same menu.

HDR for Black and White: A Step By Step Guide A Post By: Joseph Eckert A few months ago, DPS published an article I wrote entitled “How to See in Black and White.” That article had a small bonus section at the end, in which I talked about how useful HDR can be to the monochrome photographer – a fact that is initially somewhat counterintuitive, since HDR is stereotypically held to be all about garish, over-done colors and excessive haloing. Create An Automated Macro Rail For Image Stacking Do you find that producing sharp macro photographs is hard due to the super limited depth of field? The way to get around this is to take multiple images with different focus points and stack them together. A tidies work, no doubt. Macro photographer Domjan Svilkovic was kind enough to share a setup that needs nothing more than a camera, a micro controller, a bunch of cables, a computer, an old DVD an old floppy drive and some basic electronics. OK, that’s a lot of stuff, but considering that the alternative for an automated rails are in the high $100s range, it may very well be worth the extra effort. Now, just before I hand the floor over to Domjan, beware, this is going to get geeky.

Tips & Tricks FAQ What kind of camera will I need? A digital SLR camera with interchangeable lenses is the ideal solution, but almost any camera will work if you can lock the aperture, lock the focus, and lock the white balance. Ultimately, you get what you pay for. Digital SLRs generally have more options for white balance, mirror lockup, etc… the more choices, the better! If you want a camera with the most convenient HDR shooting setup, choose a camera that has an auto-bracketing (AEB) option. covers & citations » 1953 Mark Flood, ‘Arty Reference with Apocalyptic Feel’, 1997 Remco Torenbosch, ‘We’ll Choke On Our Vomit And That Will Be The End (The Destroyed Image Serie)’, 2006 - 2008, Oil paint on canvas directly deleted by turpentine and bleach Peter Baldes, ‘Erased de Kooning’, 2007

Getting Around in GIMP There are a ton of tutorials already available on the internet for using GIMP to do different things (heres some from gimp.org, Gimptalk, and Meet the GIMP for example). I noticed that though many of these tutorials are great, they didn't necessarily meet my needs for wanting to do high quality post-processing of my personal photos (with the exception of Meet the GIMP). I've cobbled together a handful of techniques for photo retouching, and thought I would try to share some of them with everyone here. Mostly they are aimed at photo retouching and manipulations as opposed to some of the other (wonderful) things GIMP is capable of doing.

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