How to create HDR images with Photoshop's Merge to HDR - TalkingTree.com - The Diigo Meta page

• 16 Sep 09
  

  Keith Bryant

  photoshop hdr tutorial

• 08 Jul 09
  

  Данило Кубай

  Assuming the lighting is decent, just click, hold down, and try to stay perfectly still until all the shots are done. Doing this yourself, you should hear a rapid 'click-click-click'. However, if the lighting is darker, then the second and third shots will be noticibly longer, so you get a 'click', 'cliiiiiiick', and 'cliiiiiiiiiiiiiiiiiiiiiiick' in a row. Without a tripod or camera rest, for the third exposure to come out well its very important to control your breathing and steady your arms well against your body while shooting.

  2use photography

• 26 Jun 09
  

  Vincent Chan
  • The final HDR image represents what my eye saw at that moment even though the camera wasn't able to capture it in one exposure alone.
  • Think of a scene that has bright sunlight and dark shadows. A single image can't capture all parts of the scene in a proper exposure, but if you take a series of photos of exactly the same scene while altering the exposure between each shot, then later you can blend the images together in Adobe Photoshop CS2.
  • 17 more annotations...
  • • turn off some automatic exposure features
    • determine the correct exposure for the overall scene and set it manually.
    • point the camera at the scene and note the aperature and shutter speed, then turn the dial to Manual and select those exposure values.
    • turn off Automatic White Balance (AWB) by setting it to a specific temperature or icon such as Sun or Cloud.
    • Most SLRs have menu options to do auto exposure bracketing (AEB) of 3 images, so I decided to try using that feature as the foundation for creating and HDR image rather than trying to manually fumble with shutter speed in between.
    • I could set AEB so that each expsoure is about 1 stop apart, such as -1, 0, +1. F
    • Then I set the camera for multishot so that when I depressed the shutter button the camera automatically snapped 3 images in quick series.
    • The general rule of thumb to avoid camera shake is that when handheld the camera's shutter speed should NOT be longer than (1/focal length).
    • t the focal length of 10mm the slowest shutter speed should be 1/10 of a second to avoid shake. The camera would display this simply as 10 instead of 1/10 usually.
    • Back in Photoshop, choose File > Automation > Merge to HDR
    • Here you will be shown a 32bit preview (JPGs are in 8bit, so this has image has more info than your screen can show you) with all the input thumbnails on the sidebar.
    • If you're very satisfied so far and you think you may want to work on it again or print it at the highest quality later, then save the file at this point as a .PBM (Portable Bit Map).
    • has to be converted to 8bit first by selecting: Image > Mode > 8bits/Channel
    • If you're up for a challenge, you could choose Local Adaptation rather than Exposure and Gamma because Local Adaptation will let you manually adjust the Toning Histogram curve, and that's how people achieve the surreal effects seen often on Flickr.
    • For a tutorial on HDR which also includes how to adjust the Local Adaptation Toning Curve for finer customization see How to Create Professional HDR Images on the Backwinds blog.
    • Image > Adjustments > Shadows / Highlight:
    • Image > Adjustments > Levels or just [CTRL+L] .
• 10 Sep 08
  

  Theron Parlin

  Photography

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