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Originally posted by isyeye
reply to post by albertfothergill
Considering that there is a bird in the photo....I'm going to guess that the object in the background is also a bird.
edit on 26-11-2012 by isyeye because: (no reason given)
Originally posted by mcx1942
I think it is a photoshop hoax. Or just another bird. It does seem very large in the distance.
Here is it zoomed in a bit, it is strange how the pic seems more pixelated around the object. Everywhere else around it is smooth looking. Immediately around it though, looks "manipulated".
Three kinds of distortions
JPEG tends to introduce two three kinds of distortions:
general loss of sharpness and oscillations around high-contrast edges: these are due to approximating intensity transitions with smooth functions (cosines); you see them as small "dots" or "halos" around the edges; they are particularly easy to see in the images of text of hand-drawings.
blocking structure: image is processed separately for every 8x8 block (or bigger in case of chroma downsampling), block edges become visible at high compression ratios.
loss of color detail: it depends on saving parameters, the program may aggressively "downsample" (reduce resolution of) chromaticity channels; it is rarely an issue for the natural photography.
Visible block structure and halos around edges are usually referred to as JPEG artifacts. Let's zoom in our example to see them better. From left to right, a crop from the original, JPEG Q80 and JPEG Q30 images. I marked artifacts in green (circles for halos, and dots for 8x8 blocks):
Originally posted by CthulhuMythos
reply to post by mcx1942
When you zoom in on the bird in the foreground, around the moving wings tips you also see the same pixellation.
I would say it looks like a bird, can even see a light patch at the left hand edge like the light part at the back of the bird in the foreground.