I've tried even going to TIFF mode which produces about a 9 meg file but in low light, the noise is still there.
Re: Digital Camera Noise
I've had some success by first going into Channels, removing/adjusting noise where it's most apparent. In the case of digital photos I get from one particular client it is usually the blue channel that needs adjustment.
There's also a tutorial by Jak for replacing a channel: http://www.retouchpro.com/tutorials/replace/index.html
Hope this helps.
Re: Camera Settings
Jak, In answer to your questions:
I am using JPEG at the highest quality setting. TIFF would be nice, but let's face it, not everyone has an IBM MicroDrive...
I am zooming in only with my lens (which allows 3x optical zoom); that should not affect things, I think.
I usually set ISO on auto; in this case, the ISO was 200 I think (I did not save the image info, sorry).
Also, I am not really a professional, so print image sizes don't matter to me that much. I keep all my images in digital format. I resize them sometimes if I want to magnify some area or make the image smaller for email/ftp. In this case, however, I did not resize anything. The image is at the original resolution of 2160x1440.
Also, I was really surprised to read the URL you posted about the DC4800. My experience mirrors gland's: low light means high noise.
Here are some more sites:
If you like blurring the blue channel of RGB, then please do yourself a favour and try this experiment:
* Find a noisy blue channel file (use three dupes, but I prefer history snapshots in Photoshop).
* Directly blur the B channel in RGB how you normally would.
* In a dupe or as a new history state/snapshot - dupe the layer and set to COLOR blend mode and then do the blur. Flatten. You can also just go blur/fade to color blend mode if not using layers.
* Inspect the results of 'Indirect Colour Component Filtering' vs direct filtering.
* Then experiment with using larger blurs, or combinations of smaller filtering including despeckle, median, smart blur, gaussian blur etc.
This simulates LAB, HSB, HSI, HSL, YCC type colour modes - where colour (hue/saturation) is separated from tone.
More on this subject can be found here:
|Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)|
|Thread||Thread Starter||Forum||Replies||Last Post|
|Free Action Set for Digital Noise Removal||gmitchel||Photo Restoration||5||11-17-2013 07:20 AM|
|Can noise be avoided in PnS Digital Cameras?||Donamai||Hardware||6||05-21-2007 04:30 AM|
|Digital Camera and scanner - help to pick||Marthig||Hardware||4||01-21-2006 04:39 PM|
|Durable Digital Camera?||G. Couch||Hardware||15||02-04-2004 06:46 AM|
|digital camera ...noise reducer||tom c||Software||2||05-11-2002 07:11 AM|