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Metadata is most certainly the case here. The breakdown of metadata for the original image (http://fc07.deviantart.net/fs21/f/2007/275/f/4/f4e91d25654426ac.jpg
by oozcitak 16y ago
Metadata is most certainly the case here. The breakdown of metadata for the original image (http://fc07.deviantart.net/fs21/f/2007/275/f/4/f4e91d25654426ac.jpg http://fc07.deviantart.net/fs21/f/2007/275/f/4/f4e91d2565442...):
EXIF (APP1) -> 5328 bytes
Photoshop IRB (APP13) -> 5896 bytes
Adobe XMP (APP1) -> 26284 bytes
Adobe (APP14) -> 12 bytes
Total -> 37520 bytes (36.6 kB)
That's 36 kB of metadata, leaving only 8 kB for compressed image data. This explains the banding seen in the English Hard post. The BMW image on the other hand (http://fc01.deviantart.net/fs51/f/2009/313/1/c/Jesus_Mobile_by_DivineError.jpg http://fc01.deviantart.net/fs51/f/2009/313/1/c/Jesus_Mobile_...):
Photoshop Ducky (APP12) -> 15 bytes
Adobe (APP14) -> 12 bytes
Total -> 27 bytes
The existence of the "Ducky" section means that the image was "saved for web" in Photoshop.
EDIT: Added numbers for the BMW image.
- Terretta 16y agoI got GIMP, and used the "Save as JPEG" output to see if it's including metadata. According to jhead[1], GIMP is not including metadata in the saved JPEG. At quality "13", the file was 46302 bytes. Using the "purejpg" option on jhead, it dropped to 45592, or -710 bytes. This 45592 bytes is exactly, to the byte, what the original article found. [1] http://www.sentex.net/~mwandel/jhead/usage.html http://www.sentex.net/~mwandel/jhead/usage.html