Question

{OF}MadD! · 08-13-2005, 09:55 PM

I'm not into photography that much....I know very little, but I have a question......

I've noticed when I take a picture with my digital camera and I call it up in Irfanview to resize it (smaller), I notice the quality of the image is never seems as good. why?

dudio · 08-13-2005, 10:05 PM

bmp to jpg?

.. or even jpg to jpg.

The original will always be the best.
jpeg's compress (or most other formats)
and you lose each time.

There may be options in Infraview
(finally grabbed ACDsee so I'm not sure)
to adjust the degree of compression.

{OF}MillerTime · 08-13-2005, 10:31 PM

Is the lens cover off?

ChemicalWarrior · 08-13-2005, 10:38 PM

Depends.

If you're using the same level of jpeg compression, it'd take around 10+ resaves and edits (it wont compress as much if you're just renaming it and saving it as a new file, but say you edit out one pixel, it'll compress more as its a new pic). Even then, you have to look rather hard to notice any difference at all.

Now, the quality of compression on your camera could be much higher than that of the tool you use to resize and this could be causing the quality loss. I highly suggest using the Microsoft power tool image resizer to do resizing. It uses a pretty high quality compression on resizes and is near photoshop level.

Simply resizing does not cause quality loss.

Hakko · 08-14-2005, 09:13 PM

what model of digital camera are you using?

{OF}MadD! · 08-16-2005, 09:47 AM

It's a Nikon CoolPix 7900

http://www.imaging-resource.com/PRODS/CP7900/CP79A.HTM

ChemicalWarrior · 08-16-2005, 02:30 PM

I'd recommend checking out another program to see if its causing the same results. Also, look to see if their is a quality level settings when saving in the program you are currently using.