Banding when applying Gaussian Blur

[cn15]

I have encountered this phenomenom several times with heavy gaussian blur and it seems to be a monitor issue, not print.  I don't see banding at all on my NEC 2190uxi but see pronounced banding with several lesser monitors.
The attached pic has no banding on my monitor, but shows obvious banding with several other monitors.
Chuong

[jbrembat]

I have encountered this phenomenom several times with heavy gaussian blur and it seems to be a monitor issue, not print.  I don't see banding at all on my NEC 2190uxi but see pronounced banding with several lesser monitors.
The attached pic has no banding on my monitor, but shows obvious banding with several other monitors.
Chuong

The attached pic has  banding on red and blue channel. In full color mode the banding is masked out from green channel.
I attacched the blue channel.

Gaussian blur is a smoothing operation. There is no way it can produce banding.
Coarse approximation of gaussian blur can produce artifacts.

No monitor issue, poor algorithm issue.

Depending on monitor, effects may be more or less visible.
Printing on inkjets may alleviate the problem, as inkjet printers use dithering.  

Jacopo

[Etienne Cassar]

I can see banding in your picture cn15 on my monitor, although it isn't that obvious.  Is it possible that I am getting an inferior image on my monitor because of my graphics card.  I have an ATI Radeon X700 right now and the monitor is connected with a DVI cable.  Do you think that I should get a better graphic card?

[cn15]

I can see banding in your picture cn15 on my monitor, although it isn't that obvious.  Is it possible that I am getting an inferior image on my monitor because of my graphics card.  I have an ATI Radeon X700 right now and the monitor is connected with a DVI cable.  Do you think that I should get a better graphic card?

My PC is 5 years old and the video card is a Radeon X300, showing its age and is due for a major upgrade.  The monitor NEC2190 is calibrated with SpectraView.  I don't know which component (monitor, video card or some other component) is responsible for the banding on your monitor.  Perhaps someone more computer savvy can chime in and help you.
Chuong