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03/14/2004 08:15:54 AM · #1 |
I hope this hasn't been asked before - I searched the archives to no avail.
I know there's a reduction in quality with Digital Zoom.
If I don't use the digital zoom, and later crop and blow up a
particular section of my image - will I end up with the same result
as using the DZ?
Or is it more complicated than this? |
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03/14/2004 08:17:38 AM · #2 |
You'll probably end up with a better result if you crop and blow up, because a lot of software has better resizing techniques than what would be in your camera.
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03/14/2004 08:19:39 AM · #3 |
It all has to do with interpolation. Which ever (camera or software) has the better technique will win. Software usually has the better technique in most cases.
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03/14/2004 08:20:18 AM · #4 |
Originally posted by Konador:
You'll probably end up with a better result if you crop and blow up, because a lot of software has better resizing techniques than what would be in your camera. |
jinx! :)
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03/14/2004 11:51:55 AM · #5 |
Depends i suppose on the camera and how it does what it does. Fuji cameras at their max resolutions have no digital zoom. As one selects lower resolutions, you get digital zoom, and as the resolution is lower the zoom is more. What the camera is doing is just blowing up the pic on the sensor - if you take a max resolution pic and a low res pic at max zoom and compare them, the low res pic is (exactly) a crop of the bigger pic.
Unless you need to zoom to frame an item, use the highest res you can and crop or enlarge it in the computer. |
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03/15/2004 09:28:18 AM · #6 |
Thanks.
So let me get this straight:
I've got a 4MP camera - when I enlage this to 800%
on my computer screen, is the whole image now
interpolated up to more than 4MP?
Does interpolation mean breaking the image up into more
pixels than are on the camera's sensor - and guessing
which colours to fill in the gaps with?
Is interpolation a basic feature of digital processing?
Is there nothing unique about Fuji's super CCD technology
that they keep prattling on about? |
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03/15/2004 06:29:31 PM · #7 |
| Normally I shoot in Jpeg and optical zoom. As an experiment I tried TIFF and digital zoom. It looked a lot better. Don't know if it's the TIFF that made the digital zoom image better looking. Time to go play around a little more. |
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03/15/2004 07:30:27 PM · #8 |
I've taken one or two decent pictures using digital zoom on my 2mp Olympus C-2100. However the digital zoom on my 4mp Canon A80 really produces garbage.
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