Re: JPEG compression in a TIFF file, pointless?

>>You're comparing apples to oranges. JPEG is not a file format, it is a
codestream format. One popular file format for JPEG is JFIF

I know that, it's just a question of semantics. I know that what
everyone knows as a "JPEG" image is actually a JFIF. I should have made
a point of being more accurate in my wording.

I'm comparing an image saved as a standard (JFIF) JPEG, and the exact
same image saved as a TIFF using JPEG compression. At the same visual
quality level, the TIFF is still HUGE compared to the JPEG/JFIF. The
TIFF is anywhere from 3 to 5 times as large as the JPEG/JFIF. So the
question remains, is there ever any reason to use JPEG compression in a
TIFF file? A JFIF/JPEG gets much better filesize for the same visual
quality, and a TIFF compressed with LZW, ZIP, or packbits is only
slightly larger than one that's JPEG compressed, but doesn't throw away
any image data.

.

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