2. What is HDR?
Set of techniques to create images that
see how the human eye sees.
From 1,000:1 contrast to 10:000:1
Photo from Google search (www.dailyhdr.com)
For more examples
6. Shooting using Canon 600D
1. Make sure your camera is set to M (manual) on the dial
on top of the camera
2. Click the menu button and use the navigation buttons to
the right of the LCD to move around.
3. Go to the first tab over and choose Quality RAW
4. move the bracket cursor to Quality then press “set”
5. use navigation buttons to choose RAW and push “set”
6. Move the main tabs in the menu to the second tab from
the left.
7. Go to Exposure comp. and push “set”
8. Use the “main dial” next to the shutter button to set the
expose bracketing to 2
9. you may play with this later to choose .5, 1, 1.5, or 2
stops
7. HDR in Photoshop
1. Open Photoshop
2. Go to File> Automate > Merge to HDR
Pro
3. Click Browse to load first set of photos
4. Once the HDR window opens, click
presets and choose from any of the
options
5. Adjust to you liking and click “OK”
8. HDR in Photomatix
1. Open Photomatix
2. Click “Load Bracketed
Photos” and load first set of
photos
3. Set Preprocessing settings
1. If movement choose “Selective
Deghosting” tool. If not do
automatic.
4. Click “Preprocess”
9. 5. Choose a preset on the
right window and adjust on
the left window.
6. If you like your setting, you
can save.
7. Click Process
10. What’s the 360°
Image Button for?
Who can tell me?
Try clicking it
Where else can you find information?
What if that doesn’t work?
11. How to Batch in Photomatix
1. Go to Automate > Batch Bracketed
Photos
2. Under Process find your saved settings
3. Check align images if any movement is
suspected
4. Select source Files or Folder
5. Customize location and make a new
folder
6. Click Run
12. The Future of HDR
HDR Video Processing using computer
generated high and low exposure
A Versatile HDR Video Production
System
Notas del editor
When we shoot HDR we set our F stop and adjust the cameras speed to gather different light. Generally HDR is created with 3 to 7 images taken with various camera speeds to create greater luminance between the lightest and darkest areas of a photograph.The human eye can see in a range of approximately 10,000:1. In comparison, a good digital camera can capture a scene with about 1,000:1.
When I first started working in the fulldome environment, one of my biggest frustrations in the dome was the inevitable washing out of images. At IAIA, our 24′ digital dome currently has 6 – PLUS U7 projectors. Each of these projectors has 3500 ANSI with a contract ratio of 2000:1. Add this low contrast ratio to the photon splash that occurs in a spherical theater and images that look gorgeous on a monitor become lifeless on the dome. High Dynamic Range (HDR) techniques solve the problem.The reflectivity and resulting light cross-bounce of the dome is also a very large factor in the apparent contrast ratio. Projectors can range from 1,000:1 to 320,000:1. But with the photons bouncing you loose a lot of the details of the image. The % of reflectivity of the screen is a big factor.
Note that any time you turn off the camera, you will have to reset the brackets on this camera.
Minuses – No batch process what so ever. I could not even get the Mac automator to do it.Can see what effect each preset is
• 360º image: Checking this option eliminates the seam betweenthe left and right sides of a panorama viewed in a 360º panoramicviewer. The seam would otherwise show because Details Enhancertakes into accoun• 360º image: Checking this option eliminates the seam betweenthe left and right sides of a panorama viewed in a 360º panoramicviewer. The seam would otherwise show because Details Enhancertakes into account local contrast, assigning different tonal valuesto the right and left parts of the image. The default value isunchecked. Note that this option is not enabled when the imageis in portrait mode, as the option is intended for panoramast local contrast, assigning different tonal valuesto the right and left parts of the image. The default value isunchecked. Note that this option is not enabled when the imageis in portrait mode, as the option is intended for panoramas.
Where else to find information:Help – type in keywords or see if there is a users manual
The more you check, the more files you will get.For successful batch you cant have extra photos in your selection or file directory