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View Full Version : OT: What's wrong with this picture?



winchman
09-11-2010, 03:16 PM
I like to look at the pictures posted on Weather Underground. Every so often one is posted that doesn't look right, but I don't know what makes it look unreal. It's posted here:

http://www.wunderground.com/wximage/viewsingleimage.html?mode=singleimage&handle=richardb&number=744&#slideanchor

Deja Vu
09-11-2010, 03:22 PM
This is what initially took the picture, but do you think post-production was fluent?
I see in the EXIF of the file that Adobe Photoshop Elements 7.0 was used.
On the other hand, I've seen scenes like that.... "live" video as the clouds roll over the land.

Model:Canon PowerShot S90Orientation:top - leftx-Resolution:72.00y-Resolution:72.00Resolution Unit:InchSoftware:Adobe Photoshop Elements 7.0 WindowsDate and Time:2010:09:10 20:27:37Compression:JPEG compressionISO Speed Ratings:100Date and Time (original):2010:09:10 17:41:15Focal Length:15.0 mmColor Space:sRGBPixelXDimension:887PixelYDimension:668

http://icons-ecast.wunderground.com/data/wximagenew/r/richardb/744-800.jpg

dp
09-11-2010, 03:53 PM
Quite often the images are HDR method which can get a bit old if over done.

http://www.bestpsdtohtml.com/best-of-hdr-high-dynamic-range-images-and-tutorials/

Whoops - should have been HDR. Though HRD method can be fun, too. http://www.bikeexif.com/vincent-hrd-black-lightning

lazlo
09-11-2010, 04:09 PM
Quite often the images are HRD method which can get a bit old if over done.

http://www.bestpsdtohtml.com/best-of-hdr-high-dynamic-range-images-and-tutorials/

They added High Dynamic Range (HDR) processing to the latest version of iOS (4.1), and it looks like hell, IMHO.

winchman
09-11-2010, 05:25 PM
Thanks, guys. I think you've nailed it. The examples on the linked site are exactly like the pictures I thought looked unreal.

KiddZimaHater
09-11-2010, 06:41 PM
You guys are speaking Chinese.
It looks fine to me ..:confused:

lazlo
09-11-2010, 07:32 PM
You guys are speaking Chinese.
It looks fine to me ..:confused:

It's just a bunch of jargon. HDR is a version of image stacking: you extend the dynamic range of the image by taking multiple pictures, with different exposure settings, and combining them together. In theory, you get a better range of light and dark areas.

In HDR mode, the iPhone takes three sequential pictures in "underexposed", "normal", and "overexposed" modes. Then it blends the three pictures together.
If anything in the scene is moving, or you're moving, you get blurry motion effects in the picture.

The video smoothing software I posted from vReveal does something similar: it scans multiple frames of video and does image stacking to improve dynamic range and the image resolution. It's very effective if the scene is unchanging:

http://www.vreveal.com/technology

Mcgyver
09-12-2010, 12:04 AM
kind of looks like the world through my polarized script sunglasses. Even the girls have bigger.....qualities with those things on

rmuell01
09-12-2010, 12:22 AM
For those of us who have darkroom experience, this is also a technique known as Un-sharp masking. where you take multiple images of the negative at various timings in the enlarger. you then register the negatives together to improve sharpness and shadow detail. Mostly done with large negatives.

Rob