any idea why my brand new scanner scans a nice glossy picture like this?



i zoomed into one of the holes punched on the page to show you the lines it creates in scanning

[Edited on May 8, 2008 at 6:21 PM. Reason : .]

5/8/2008 6:20:29 PM

what are all the settings. resolution, dpi, that kinda shit.

5/8/2008 6:32:15 PM

maybe the actual picture has those lines in them

5/8/2008 6:57:59 PM

looks like a low-resolution sample of like 4-color separation printing (like screening in magazines)

use gaussian blur in photoshop, or scan at a higher resolution and use the de-screen filter.

that's my best guess.

5/8/2008 7:50:15 PM

all samples are scanned at 150dpi

that one above is zoomed in like 600% but you can see the lines even when you zoom out to see the whole page in one window - they're very obvious.

the actual picture doesn't have lines in it and i just tried scanning something else with the same result.

this is the cover of a sign catalog


here is the guy's face zoomed in:


now in actuality the cover is a glossy magazine cover with crisp images and no specks anywhere.

the last example is a regular printed piece of paper with text


looks much better but wtf is up with the dust and scratches? is it dirty glass? is it some setting? is it the reflection off the gloss finish?

5/9/2008 4:26:27 AM

this is the model of scanner i'm using:
http://www.usa.canon.com/consumer/controller?act=ModelInfoAct&fcategoryid=124&modelid=14444

5/9/2008 4:28:13 AM

bttt

5/10/2008 10:13:41 PM

Quote :

"looks like a low-resolution sample of like 4-color separation printing (like screening in magazines) use gaussian blur in photoshop, or scan at a higher resolution and use the de-screen filter. that's my best guess. "

Yep, that's what it seems like to me too. People don't seem to realize how crappy a lot of the media around them is reproduced until they try and work with it.

Scan a actual photo and see if it has the same problems (it shouldn't) and maybe it'll shed more light on the issue.

But, a descreen filter (often built in to scanner drivers) should help a lot.

[Edited on May 10, 2008 at 11:16 PM. Reason : also crap scanner]

5/10/2008 11:15:38 PM