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No. 28589
[R]
The DPI (Dots Per Inch) is irrelevant, it only affects printing of an image. The important thing for the quality of a digital photo is the quantization factor (Q).
Most cameras save high quality pics with Q-factor around 95/94 (that's also the number 10 quality in Photoshop). The Fame-Girls webmaster has retained that, after adding the logo and possibly some retouching. Last time I checked the all too often posted low quality versions had the Q as low as about 75, which is below mediocre, and not acceptable for serious collectors. The misery becomes all too visible if you zoom in only by 200-300%. The only use for such lq-images is decorating of web pages.
Some people seem to think that it's a good thing to save disk space by reducing the filesizes to half of the original. Think another time:
When I started collecting pics from the web about 15 years ago, 1024 by 768 pics with a filesize little over 100 kilobytes were a pain in the ass to download and to keep on disk. Now their quality looks so bad that I have to think twice, if they are worth keeping. (OK, I keep everything, the disk space is very cheap today.)
It doesn't take many years from now when the smallest disks you can find are in the terabyte range, and when the common broadband speeds are several tens of megabits/sec. You will regret then if you now spare a few megabytes or connection minutes. I would.
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You should try this:
WinJDump/jpegdump is a little proggie that shows easily the important originality and quality things of a jpeg image (Q-factors for luma & chroma, the file-CRC & image-CRC, possible incompleteness or extra bytes, etc.).
And of course: Zoom in, and you'll see!
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