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-   DVD Talk Covers, Cases & Inserts (https://forum.dvdtalk.com/dvd-talk-covers-cases-inserts-35/)
-   -   Why do my scans look like this? (https://forum.dvdtalk.com/dvd-talk-covers-cases-inserts/412972-why-do-my-scans-look-like.html)

frenchy 03-07-05 09:06 AM

Why do my scans look like this?
 
http://home.csumb.edu/f/frenchryan/world/scan.jpg

See how it's all textured, almost like canvas? This always happens when I scan a DVD cover. Anybody know why it does this or how I can avoid this happening? I'm using an HP 2110 scanner.

Pointyskull 03-07-05 09:11 AM

Can you change/increase the setting for DPI?
Maybe it's set too low.

frenchy 03-07-05 09:45 AM

Its set to 300, I forgot to mention that. That's pretty much the standard for print quality, right?

BuddyRevell 03-07-05 11:54 AM

You have halftone dots my friend. Gaussian blur and Unsharp mask. Use it. Not your scanners fault, it's just the way it is.

canaryfarmer 03-07-05 11:56 AM

If you have a descreening option when you scan, use it. Put it to one of the higher settings.

canaryfarmer 03-07-05 11:59 AM

(by "higher settings", I mean ~175 lpi. It'll say.)

frenchy 03-07-05 12:47 PM


Originally Posted by BuddyRevell
You have halftone dots my friend. Gaussian blur and Unsharp mask. Use it. Not your scanners fault, it's just the way it is.

I remember reading about these in the DVDCA scanning tutorial. Would you (or anybody) remember the amount of blur and mask they recommended?

The Luggage 03-07-05 01:12 PM

Gaussian Blur radius ca 1, Unsharp Mask Amount 50, Radius 2 times the value used on Gaussian Blur.

frenchy 03-07-05 01:25 PM

Thanks.

I tried it. It looks good from a distance, zoomed in to 100% you can tell it's slightly blurred. If that's the standard technique, though, I'll go with it and see what it looks like printed.

joliom 03-07-05 08:51 PM

I have the DVDCA tutorial that explains all of this stuff in detail if you want me to send it your way. Btw, if you want a really high-quality scan you might want to try scanning at 600 dpi instead. Then hit it with Gaussian Blur (radius set between .50 - 1.00), and then if you want to regain some of the sharpness, then hit it with Unsharp Mask (radius between 1.00 - 2.00). Then down-convert your image to 300 dpi. Just make sure you clean your scanner bed and source image real good first to remove all the dust/dirt or you'll be spending a lot of time cleaning up all the blemishes.

Autotelik 03-07-05 11:13 PM

could someone please send me the scanning tutorial? I'm still a newbie into cover designs, but would like some direction/advice into scanning pictures. Fortunately, I have a nice stash of old mags to flip through for good patterns/textures etc.


<b>tutorial received. Thanks joliom!!</b>

joliom 03-08-05 02:28 AM

Autotelik - YGM.

rionandvord 03-13-05 02:09 PM

[email protected] too is you can joliom :) (your doing a great job sending stuff to people in different threads i see! way to go!)

DVD_FANATIC 03-13-05 04:20 PM

my guess
 
I have that too its hard to scann DVD covers. I think its either a copywrite divice to avoid black market DVDs ( i'm not surggesting you are .. ) and scanners take the colour and recreate the object(s) its scanning by working out the colours and recreating them for your end result. To avoid this i don't know sorry.

JLyon1515 03-13-05 04:31 PM


Originally Posted by DVD_FANATIC
I have that too its hard to scann DVD covers. I think its either a copywrite divice to avoid black market DVDs ( i'm not surggesting you are .. ) and scanners take the colour and recreate the object(s) its scanning by working out the colours and recreating them for your end result. To avoid this i don't know sorry.

It's not a copyright device. It's just the way it is. The DVD covers are PRINTED like that, so when you scan them in, you get exactly what was printed. If you scanned a DVD cover, and then printed out your scan, doesn't it look just like your original?

frenchy 03-13-05 06:01 PM

They look fine when I print them. My problem with the texture on the scans is I can't get covers accepted to cover sites when they look like that.

Disc-Flipper 03-13-05 07:37 PM

There's nothing wrong with dots on scans if you can also see them on the original. What you don't want to do is introduce lines and moire patterns (spiral-effects) in the scanning process. Dots you see onscreen with your scans will often flow together nicely when being printed on an inkjet printer.

joliom 03-14-05 09:51 AM

You guys, re-read the above posts regarding half tone dots. That's what happens when you scan printed material like a DVD cover. You need to apply a Gaussian Blur, that's all. It's not a copy-protection mechanism and it's not uncorrectable. Like I said previously, I have a tutorial saved that explains all of this in greater detail, and I'd be happy to send it out to any of you who want it.

joliom 03-14-05 09:56 AM

rionandvord - YGM.

Bowdrinker 03-26-05 06:42 AM

can someone please send me this tutorial.
thanx
[email protected]

Michael Corvin 03-26-05 08:45 AM

Descreening might clear this up BEFORE you ruin the image by blurring and unsharp masking it.

joliom 03-26-05 11:25 PM

Bowdrinker - YGM.

cmatherne 03-29-05 10:32 PM

If someone could send the scanning tutorial over to me I'd appreciate it.
Thanks
[email protected]

joliom 03-30-05 07:33 PM

cmatherne - YGM.

EA_Derby 04-05-05 04:57 PM

I'd love the tutorial too ([email protected])

Many thanks joliom.


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