What are these lines

**gwpriester** · 31 July 2007, 01:16 AM

Maybe you're just younger than most of us and you can see subtle things that some of us older folks stopped seeing years ago. :-)

**behzad** · 31 July 2007, 01:18 AM

Gary your always young in my eyes.

**Egg Bramhill** · 31 July 2007, 01:22 AM

Behzad,

I attach the xar.

Just another thought. LCD monitors are made to work best at a set resolution and whilst it's possible to alter the resolution they are not as good at this as CRT's So it might not be your monitor it might just be the resolution setting.

**behzad** · 31 July 2007, 01:26 AM

Dear egg, if I was not a wabbit i would not like you so much
get it, easter

:P

It is my monitor for sure, i am set at optimal and it shows.
I am sure it will not appear in print (prepress)

It is okay, only shows on white, if I put a color background it disappears.

Thanks for your effort

**pauland** · 31 July 2007, 07:58 AM

Take a screen grab (with the line showing) and attach it here, then we can see exactly what's happening (or not).

**PhilM** · 31 July 2007, 08:44 AM

Some monitors will show a ghost image slightly to the right of the real pixels where there's a sudden change in brightness. KVM switches can make this effect worse.

To reduce the problem remove any KVM switch and if possible use a DVI lead instead of a VGA lead.

You should see the same ghosting over the whole screen display if you've got it, not just from Xtreme. And, of course you can't capture this artefact in a screen grab.

Phil

**pauland** · 31 July 2007, 08:47 AM

Originally Posted by PhilM

And, of course you can't capture this artefact in a screen grab.

Phil

Yes, that's why the screen grab would show this as a monitor fault or otherwise.

**Luke.Hart** · 31 July 2007, 09:56 AM

You didn't mention whether you see these artifacts whilst editing or just after exporting. If you only see them on exporting to JPEG, it's possible that they are the result of the lossy compression present in JPEG. JPEG is well now for working well with photos with smooth variation in colour, but producing exactly the ghosting (technically known as ringing) you report at the edge of abrupt changes (for examples in cartoons). If this is the case it maybe worth comparing the result from exporting to a lossless format like PNG.

**behzad** · 31 July 2007, 11:11 AM

Phil hit the nail, it only happens on the right side of lines and objects not the left. I have to switch to DVI from ANALOG.

Here is a screen capture.

Luke this happens as I draw (now I noticed even in illustrator)

**pauland** · 31 July 2007, 11:38 AM

OK, as far as I can tell from the bitmap, there's nothing peculiar about the image, so you must be seeing something different on your monitor.

There's something bizarre about looking for a white line at the end of a black bar which itself sits on a white background!

I can only imagine that your monitor isgiving a less than optimal picture, but this would be evident in anything on screen, though I suspect that it's the high B&W contrast that's making this show most.

When we bought our first widescreen TV I insisted that it was faulty because when There was a high contrast the screen would distort - dark lamp posts against a bright sky would bend and 4:3 aspect TV would be noticeably distorted on the edges.

I had a replacement. Just the same. Went to the TV shop - exactly the same for every TV there..

In comparison I've never seen this effect on a monitor and it's not the same as you are describing, but i think you are just seeing an effect/outline around high contrast sections and just like my TV you may only be seeing this effect horizontally.

Anyway, that's a theory from someone that knows nothing about this stuff.

Paul