JPEG to TIFF and Back Again
- Lowjiber
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JPEG to TIFF and Back Again
Here's the problem with old JPEG images... They are full of artifacts from the JPEG compression routine. Now, that may seem inconsequential. However, if you ever want to "revisit" the image you'll find that delicate adjustments aren't quite as easy as when the image was in the TIFF (Raw) mode when you first worked it.
Topaz Labs has an application that will convert the JPEG image back to a Raw TIFF, thus removing the compression artifacts. I've had it for some time, but never even tinkered with it... I'm lazy.
Yes, one does need to convert the image back to JPEG to post it on the web. However, that only puts ONE series of compressions, vice two if you re-save an old file once again.
Here's an old image that certainly could use some revamping... I converted it using the application described above and tweaked it a bit.
Be sure to left-click for the true color that doesn't show in the thumbnail. I just thought I'd share the "new gun" that I've had in my arsenal that was previously untested. Works like a champ.
Thanks for tuning in. Clear Skies & Stay Safe.
Topaz Labs has an application that will convert the JPEG image back to a Raw TIFF, thus removing the compression artifacts. I've had it for some time, but never even tinkered with it... I'm lazy.
Yes, one does need to convert the image back to JPEG to post it on the web. However, that only puts ONE series of compressions, vice two if you re-save an old file once again.
Here's an old image that certainly could use some revamping... I converted it using the application described above and tweaked it a bit.
Be sure to left-click for the true color that doesn't show in the thumbnail. I just thought I'd share the "new gun" that I've had in my arsenal that was previously untested. Works like a champ.
Thanks for tuning in. Clear Skies & Stay Safe.
John (Urban Astronomer) Apertura AD10 Dob; XLT 150 Dob; XLT 120EQ; Lunt Solar 60 PT/B1200; ES AR102; SW Pro 100ED; 2 SW Pro 80ED's; 90mm Eq; WO Z-61; SW 90mm Virtuso Mak; 2 Orion ST-80's; Quark-C; Cams: Polemaster, ASI120MM-S, ASI174MM & ASI174MM-C
- helicon
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Re: JPEG to TIFF and Back Again
Very interesting John. Thank you.
-Michael
Refractors: ES AR152 f/6.5 Achromat on Twilight II, Celestron 102mm XLT f/9.8 on Celestron Heavy Duty Alt Az mount, KOWA 90mm spotting scope
Binoculars: Celestron SkyMaster 15x70, Bushnell 10x50
Eyepieces: Various, GSO Superview, 9mm Plossl, Celestron 25mm Plossl
Camera: ZWO ASI 120
Naked Eye: Two Eyeballs
Latitude: 48.7229° N
Refractors: ES AR152 f/6.5 Achromat on Twilight II, Celestron 102mm XLT f/9.8 on Celestron Heavy Duty Alt Az mount, KOWA 90mm spotting scope
Binoculars: Celestron SkyMaster 15x70, Bushnell 10x50
Eyepieces: Various, GSO Superview, 9mm Plossl, Celestron 25mm Plossl
Camera: ZWO ASI 120
Naked Eye: Two Eyeballs
Latitude: 48.7229° N
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