Actions

HDR Photography: Difference between revisions

From Mike Beane's Blog

mNo edit summary
Line 18: Line 18:
=Real Test 1: Flower Pot=
=Real Test 1: Flower Pot=
* Flower pot on Porch.  I took this a few hours after the faux test.  Much better
* Flower pot on Porch.  I took this a few hours after the faux test.  Much better
* Pictures one and two are cropped sections of the flower pot.  Note the detail in the HDR version.
* Picture three is the full HDR picture
* Picture four is a combination of all of the exposures (marked) and a grayscale strip to show the differences.
{{Frame4|Image:Hdrtest2 real original.jpg|Original - Cropped|Image:Hdrtest2 real.jpg|HDR Cropped|Image:HDRTest2.jpg|HDR Full|Image:Hdtest2 real ranges.jpg|Exposure Ranges}}
{{Frame4|Image:Hdrtest2 real original.jpg|Original - Cropped|Image:Hdrtest2 real.jpg|HDR Cropped|Image:HDRTest2.jpg|HDR Full|Image:Hdtest2 real ranges.jpg|Exposure Ranges}}


=Real Test 2: Tower=
=Real Test 2: Tower=

Revision as of 19:07, 13 May 2007

This is a test jump into HDR photography. Hopefully it develops as I learn more, but it was so interesting I just took a leap at it.

Faux HDR

  • First off, I cheated at this. I took 1 picture (which wasn't really a great picture to begin with) and manually manipulated the colors to over & under expose. For the first test I wanted to see the merge results.
Underexposed
Original
Overexposed


  • The results were rich in color. I shifted between 2 exposure spaces and the latter of the two was the richest.
  • Having seen the combined difference, I'll work on learning on the Powershot S3 how to manipulate the over/under exposure and see what a true light picture results with.
Combined - 2 Stops
Combined - 4 Stops

Real Test 1: Flower Pot

  • Flower pot on Porch. I took this a few hours after the faux test. Much better
  • Pictures one and two are cropped sections of the flower pot. Note the detail in the HDR version.
  • Picture three is the full HDR picture
  • Picture four is a combination of all of the exposures (marked) and a grayscale strip to show the differences.
Original - Cropped
HDR Cropped
HDR Full
Exposure Ranges


Real Test 2: Tower

  • 21 pictures ranging in exposures
  • Noted that there is a need to drop overly exposed pictures (95% white) from the batch
Original
HDR


Real Test 3: River

  • 17 pictures ranging in exposures
File:Hdrtest-river-original.jpg
HDR


Programs

  • HDR Shop - V1 is free for non-commercial
  • Photomatix - The older version is free (no tone tools)
    • The latest version will save a non-watermarked HDR file.
    • Combined with HDR Shop you apparently have all the tools you need.
  • Photoshop C2 or higher

References