posted on Nov, 26 2012 @ 03:06 PM
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".
This pixelisation is caused by the JPEG compression and can be found around every highly contrasted areas in a JPEG photo.
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):
As OP's photo is not original, it was very likely resized thus the JPEG compression artefacts.
About the photo itself, it was so badly modified that the EXIF don't even show the camera model:
I'm afraid that nothing useful can be done on this photo, any serious and complete image analysis require the full unmodified document.
Probably a bird, but just a guess...
edit on 26-11-2012 by elevenaugust because: (no reason given)
edit on 26-11-2012 by elevenaugust because: spelling