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Web Publishing Experiment – Draft of the Next Death Valley Post

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I decided to try a little web-publishing experiment with part 2 of my series of posts on photographing Death Valley National Park – I’m sharing the draft publicly as I write it. I decided to try this for several reasons.

  • It is prime DeVa photography season now and for the next couple of months, and some people may find the information useful before I’m ready to release the final version.
  • There are lots of you who have DeVa experience of your own, and perhaps your comments and feedback may improve the post.
  • Maybe, just maybe, someone might be interested in watching the evolution of the post. I can flatter myself, right? :-)

To find out more take a look at the current version of the draft, where I’ve added a few words of explanation.

Dan

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Experiment #2: A Hint

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Here are the three source images:

The differences among them are obviously in the amount of noise that was added to the image. No noise was added to the first image – any noise there was in the original capture. 10% level “Uniform” noise was added to the second image in Photoshop. 20% “Uniform” noise was added to the third image in the same way.

The soft photograph was chosen to avoid masking the noise with a lot of other sharp detail – this image provides very smooth gradients from black to white, where noise is typically easier to detect. I also chose this image because it is nearly – but not quite – monochromatic. This meant that I could increase the effect of the noise by using color noise rather than limiting to monochromatic noise – and that the color noise would tend to be more visible against the nearly monochromatic background.

The original set of 6 jpgs includes two from each of the three versions shown here. For last-minute fun you could still visit the comment page and try to a) determine whether or not the differences are visible and b) which pairs of images are the least noisy, more noisy, and most noisy.

More information to come later this evening.