HDR Workshop


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Keynote presentation for my intro to HDR Workshop. First Workshop on January 16, 2010

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  • HDR Workshop

    1. 1. HDR Photography High Dynamic Range Scott Wyden Kivowitz www.scottwyden.com
    2. 2. Sponsored By
    3. 3. 9 Shot Exposure HDR - Zion National Park, Utah
    4. 4. 9 Shot Exposure HDR - Lake Topanemus, Freehold, NJ
    5. 5. 9 Shot Exposure HDR - Eastern State Penn, Philly, PA
    6. 6. 9 Shot Exposure HDR - Woodbridge, NJ
    7. 7. 9 Shot Exposure HDR - Eastern State Penn, Philly, PA
    8. 8. High Dynamic Range Imaging In image processing, computer graphics, and photography, high dynamic range imaging (HDRI or just HDR) is a set of techniques that allow a greater dynamic range of luminances between the lightest and darkest areas of an image than standard digital imaging techniques or photographic methods. This wider dynamic range allows HDR images to represent more accurately the wide range of intensity levels found in real scenes ranging from direct sunlight to faint starlight. -Wikipedia
    9. 9. High Dynamic Range Imaging “making a photograph look how your eye sees the scene” “creating a photograph beyond what a camera can capture.” The simplest explanation of HDR camera’s exposure, over exposure, under exposure, merge
    11. 11. LOOK LIKE THIS
    12. 12. Why and how you do it
    13. 13. Benefits of HDR Photography Boosts Creativity Shoot Mid Day Overcast Is Ok! The Sun Is Ok! Many Options A Closer Reproduction Of Your Eye
    14. 14. Uses for HDR Real estate photography Landscape/Nature photography Automobile photography Product photography Photographers Block Just being creative!
    15. 15. What you need to get started A camera that can take RAW image files A good tripod (wind will create shake) A remote trigger release recommended but not required (will prevent shake) HDR Software (PhotoMatix, LR/Enfuse, etc...) Photo editing software (Lightroom, Photoshop, Aperture, etc...)
    16. 16. Light Meter Using a light meter would produce the optimal results however even the best HDR photographers rarely use one as the built-in light meters are very accurate. Spot metering would be required from a light meter to produce exact EV levels.
    17. 17. Portraits It is possible to create HDR portraits, however they are not simple and take a lot of practice and time to do it correctly. If the subject is moving between the multiple exposures the HDR will not turn out well. (Ghosting effect) HDR portraits can be done using the single RAW image style of HDR creation when an exposure is perfect! Typically HDR portraits are more artistic than realistic
    18. 18. Ghosting Ghosting is caused by an object or subject moving between exposures
    19. 19. Types of HDR Photography Multi Blended (Typical HDR) Single RAW Image TTHDR (True Tone HDR)
    20. 20. Multi Blended Get master exposure RAW format Aperture priority with bracketing 3, 5, 7 or 9 Exposures to create a highly dynamic photograph Blend & Tone mapping in HDR software Finalized in Photo Editing Software
    21. 21. Single RAW Image Get Master Exposure RAW format Pseudo HDR generated & tone mapping in HDR Software Finalized in Photo Editing Software
    22. 22. True Tone HDR Same as Blended HDR Tone mapping should resemble a more realistic look rather than surreal.
    23. 23. Blended HDR Single RAW Image TTHDR
    24. 24. Blended HDR
    25. 25. Single RAW
    26. 26. TTHDR
    27. 27. Steps to shooting a HDR 1. Make sure your CCD is CLEAN 2. Change the camera to RAW !!! 3. Put the camera on a tripod 4. Meter the scene 5. Put the camera on Aperture Priority 6. Set to Continuous 7. Set up auto bracketing 8. Ready, Aim, Fire! (MANUAL FOCUS)
    28. 28. Make sure the CCD is CLEAN Otherwise expect a lot of spots!
    29. 29. Change the camera to RAW RAW files are uncompressed high resolution images which capture more data and detail than what the exposure requires JPG files are compressed and only contain data that can be seen. All extra RAW data is purged during compression. A HDR from JPG images can become distorted.
    30. 30. Put the camera on a tripod Stability Shake Blur Wind Bumps You will have long shutter speeds! Earthquakes
    31. 31. Put the camera on a tripod Stability Shake Using a remote cable Blur release will also help reduce shake and blur Wind Bumps You will have long shutter speeds! Earthquakes
    32. 32. Meter the scene The master exposure needs to be perfect otherwise the HDR can not be realistic The master exposure is your starting point
    33. 33. Put the camera on Aperture Priority The camera could also be on manual but you would need to adjust the shutter speed for each exposure If the camera was on shutter priority then each photo would have different focus Aperture Priority is the easiest and best way to capture the photos for an HDR
    34. 34. Set to continuous Not required for still life, but if something is moving you want speed so there is no ghosting during the HDR generating. Continuous High would be required if doing a multiple image HDR of a person
    35. 35. Set up auto bracketing 3 shots -2, 0, +2 5 shots -2, -1, 0, +1, +2 etc... If auto bracketing is unavailable then using exposure compensation would work as well
    36. 36. Ready, Aim, Fire Camera on Manual Focus GO FOR IT!
    37. 37. master exposure 0
    38. 38. -2 master exposure 0
    39. 39. -2 -1 master exposure 0
    40. 40. -2 -1 master exposure 0 +1
    41. 41. -2 -1 master exposure 0 +1 +2
    42. 42. Before
    43. 43. After
    44. 44. Histogram
    45. 45. Tone Mapping Tone mapping reduces the dynamic range, or contrast ratio, of the entire image, while retaining localized contrast (between neighboring pixels), tapping into research on how the human eye and visual cortex perceive a scene, trying to represent the whole dynamic range while retaining realistic colour and contrast. Images with too much tone mapping processing have their range over-compressed, creating a surreal low-dynamic-range rendering of a high-dynamic-range scene. -Wikipedia
    46. 46. Tone Mapping The adjustments which you tweak to create your HDR look
    47. 47. Some Tone Mapping Options
    48. 48. Luminosity Adjusts the brightness of shadows
    49. 49. Strength Controls the strength of contrast enhancements. Lower for a more realistic look
    50. 50. Color Saturation Controls the saturation of the RGB color channels. The greater the saturation, the more intense the color. The value affects each color channel equally.
    51. 51. White Point / Black Point Adjust contrast of white & black points individually for the entire image
    52. 52. Gamma Adjust brightness of the entire image
    53. 53. Temperature Similar to white balance as the slider will adjust the color of the image. Slider to the right gives a warmer image. Slider to the left gives a colder more bluish image.
    54. 54. Micro-smoothing At 0 you can get the dramatic style HDR images with all the detail in everything from walls to clouds you didn’t know where there. However, if you want a simple blended exposure photo set it to 30.
    55. 55. Micro-contrast Controls the accentuation of local details. The default value (High) is the optimal value in most cases. Will bring out more texture in the image. Will expose a dirty CCD Will expose imperfections (example: Stitching in a pano)
    56. 56. Light Smoothing Controls smoothing of the contrast Can cause the Halo Effect
    57. 57. Highlight Smoothing Can help reduce or remove the Halo Effect
    58. 58. See the Halo?
    59. 59. See it here?
    60. 60. What is wrong with this HDR?
    61. 61. See it now? Single RAW HDR, poor exposure & moving subject
    62. 62. Default settings of Photomatix, LR/Enfuse & Topaz Adjust
    63. 63. Photomatix
    64. 64. LR/Enfuse
    65. 65. Topaz Adjust
    66. 66. Various examples of uses for HDR
    67. 67. Challenge Yourself Take something everyone knows and make it unique
    68. 68. Final Tips HDRs will not fix bad lighting Turn off auto adjustments in camera (contrast, saturation, sharpening, etc...) Shoot fast if your subject is moving For long exposures mirror lockup can save the HDR Try to use f/5.6, f/8 & f/11 for sharpest images A lens hood can help reduce unwanted flare
    69. 69. Final Tips Fine tune your HDR photography in image editing software like Photoshop or Lightroom Remove any dirty CCD spots Adjust contrast, color, white balance, saturation
    70. 70. Extra Fun Add a layer of texture to the image to create something even more artistic!
    71. 71. My Favorite HDR Photographers Trey Ratcliff - Landscapes, Nature, Life stuckincustoms.com Michael James - Real Estate digitalcoastimage.com My HDR Photography Mike Criss - Alaska scottwyden.com/hdr akphotograph.com David Nightingale - Fine Art, Commercial chromasia.com Tony Eckersley - Travel, Landscapes tonyeckersley.com
    72. 72. Adobe Photoshop, CS4 RAW editor, HDR Generation built in http://imgry.net/5v Topaz Adjust use code “scottwyden” to save 15% Photoshop Plugin, Created Pseudo HDR from RAW and JPG images. Topaz Labs also has many other PS plugins designed for various photo editing http://imgry.net/5y HDRSoft Photomatix Pro use code “ScottWyden15” to save 15% HDR Generation built in http://imgry.net/5w Adobe Lightroom 2 RAW editor and photo workflow solution http://imgry.net/5x LR/Enfuse Plugin for LR, Pay by donation! http://imgry.net/5z
    73. 73. Great HDR Books Trey Ratcliff - A World In HDR http://imgry.net/71 David Nightingale - Practical HDR http://imgry.net/72 Christian Bloch - The HDRI Handbook http://imgry.net/73 Michael Freeman - Mastering HDR Photography http://imgry.net/74
    74. 74. •Flexible plans and prices you’ll be pleased with •The best & only elegant photography hosting and selling solution •Professional-quality presentations using highly intuitive online tools •Elegantly designed, ad-free! •Upload, present, and sell •Printing services via Mpix! HDR Workshop attendees receive 15% off using the affiliate link and coupon code below: Link: http://imgry.net/75 Coupon code: SWK-HDR-15 Visit photos.scottwyden.com to see a Zenfolio in action!
    75. 75. Promote Control $300 - http://imgry.net/6u Designed for serious amateurs and pros, Promote Control is an advanced remote control for digital SLR cameras from various manufacturers. Superior automation and intuitive ease of use. It will have you taking High Dynamic Range (HDR) photographs, time-lapse sequences and much more in a flash.
    76. 76. Scott Wyden Kivowitz Workshop My Photography scottwyden.com Find a Photowalk Near You! photowalklist.com Find me on Twitter, Facebook, Flickr, LinkedIn, Vimeo & YouTube