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HDR Photography: Difference between revisions

From Mike Beane's Blog

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(Added HDR and information to page)
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=Faux HDR=
=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.
* 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.


{{Frame3|Image:HDRTest-1.jpg|Underexposed|Image:HDRTest-2.jpg|Original|Image:HDRTest-3.jpg|Overexposed}}
{{Frame3|Image:HDRTest-1.jpg|Underexposed|Image:HDRTest-2.jpg|Original|Image:HDRTest-3.jpg|Overexposed}}


The results were rich in color.  I shifted between 2 exposure spaces and the latter of the two was the richest.
* 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.


{{Frame2|Image:HDRTest-2Spaces.jpg|Combined - 2 Stops|Image:HDRTest-4Spaces.jpg|Combined - 4 Stops}}
{{Frame2|Image:HDRTest-2Spaces.jpg|Combined - 2 Stops|Image:HDRTest-4Spaces.jpg|Combined - 4 Stops}}


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.
[[Category:2007-05]]
[[Category:2007-05]]


=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
{{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}}


Flower pot on Porch.  I took this a few hours after the faux test.  Much better


=Real Test 2: Tower=
=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


{{Frame2|Image:Hdtest_tower_orig.jpg|Original|Image:Hdtest_tower_notones.jpg|HDR}}
=Real Test 3: River=
* 17 pictures ranging in exposures
{{Frame2|Image:Hdrtest-river-original.jpg|Original|Image:Hdrtest-river-notones.jpg|HDR}}


=Real Test 3: River=





Revision as of 16:47, 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
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



References