Register on the forum now to remove ALL ads + popups + get access to tons of hidden content for members only!
vintage erotica forum vintage erotica forum vintage erotica forum
vintage erotica forum

Go Back   Vintage Erotica Forums > Information & Help Forum > Help Section > Scanning Feedback

Follow Vintage Erotica Forum on Twitter
Best Porn Sites Meet Our Girls Register FAQ Members List Calendar Mark Forums Read

Notices

Reply
 
Thread Tools Display Modes
Old 04-15-2015, 03:28 PM   #21
Tryvek
Member
 
Join Date: Nov 2011
Posts: 76
Thanks: 934
Thanked 140 Times in 52 Posts
Tryvek 500+Tryvek 500+Tryvek 500+Tryvek 500+Tryvek 500+Tryvek 500+Tryvek 500+
Default

Quote:
Originally Posted by deepsepia View Post
You might give it a try. The tools are free, and its a useful skill. That said, this one might not be the place to start.

I did look at "The Seduction of Lyn Carter" and this would be very hard. It looks like it was originally shot on film, then converted to video by a not-very-capable telecine operator. _If_ someone had the original film, and it was in usable condition, you could go back to that and rescan it, and do much better.

But trying to fix a bad video from dodgy film is really hard. Colors are all over the place, and its not a consistent thing.
Thanks for making the effort to help me out. I appreciate your assessment. Although I'm retired (for the past 22 years) my time is not unlimited - spend a lot time in waiting rooms and it might be an "old dog, new tricks" situation.

Years ago I got an SE version of Pinnacle (that came with a scanner I bought) that had a color correction feature. As I recall, it would have you ID an area of the frame that was supposed to be pure white and then measure the "amount of correction" need to turn it white and then apply that amount to all the other pixels in each frame throughout the video. Pretty clever, but too simple an approach for most color problems, particularly this one.

I tried separating the video into segments. Ones that were green tinted and ones that were not. The color correction wasn't too bad, but after all that I couldn't "stitch" the segments back together. Talk about irritating.

I had hoped that by now there were more sophisticated software, like the stuff you see on TV when they enhance a video of a license plate so it can be read.

I think the human eye and brain do some color correction when viewing "The Seduction of Lyn Carter" or it might be that the eye and brain are "focused" on more interesting things in the frame rather than that green tinting.
Tryvek is offline   Reply With Quote
The Following 5 Users Say Thank You to Tryvek For This Useful Post:
Old 07-13-2015, 11:44 PM   #22
beutelwolf
Opprobrious Opsimath
 
beutelwolf's Avatar
 
Join Date: Sep 2005
Location: Perfidious Albion
Posts: 20,986
Thanks: 51,671
Thanked 457,723 Times in 20,899 Posts
beutelwolf 1000000+beutelwolf 1000000+beutelwolf 1000000+beutelwolf 1000000+beutelwolf 1000000+beutelwolf 1000000+beutelwolf 1000000+beutelwolf 1000000+beutelwolf 1000000+beutelwolf 1000000+beutelwolf 1000000+
Default plastic compensation

One of my pet projects on VEF is the cover index for the German mag Sexy. Many of the covers there are scans, though the majority are auction finds, and as such typically photographs. One particular vendor has the unfortunate habit of photographing the covers whilst they are still in a plastic bag. The result of this is that it really dulls the colours.
Here are a couple of examples:

In comparison, this is what the last cover really should look like:


What I'd like to hear are some tips to reduce the effect of the dulling. I had a go at one of those images, throwing all sorts of things PaintShop Pro (my pic editor) has on offer at the pic. The result (below) is still not great, and worse - it was quite a bit of effort, as I was not really sure what I was supposed to be doing. Thus I'd like to know which settings I should tackle, so that I can turn this into a script to turn the whole affair into (eventually) a low-effort thing.
beutelwolf is offline   Reply With Quote
The Following 6 Users Say Thank You to beutelwolf For This Useful Post:
Old 07-14-2015, 12:26 AM   #23
Truenonio
Senior Member
 
Truenonio's Avatar
 
Join Date: Nov 2009
Posts: 259
Thanks: 3,744
Thanked 2,468 Times in 322 Posts
Truenonio 10000+Truenonio 10000+Truenonio 10000+Truenonio 10000+Truenonio 10000+Truenonio 10000+Truenonio 10000+Truenonio 10000+Truenonio 10000+Truenonio 10000+Truenonio 10000+
Default

Maybe the first things that it must be notice is what settings we must to make,
and play a lot with the settings for discovering the appropriate ones.

I made my trying using a simple, lite, and practical program called PhotoFiltre.
I change the:

saturation + 30%
gamma - 0,70
contrast + 15%


Last edited by Truenonio; 07-14-2015 at 12:38 AM..
Truenonio is offline   Reply With Quote
The Following 5 Users Say Thank You to Truenonio For This Useful Post:
Old 07-16-2015, 08:27 PM   #24
beutelwolf
Opprobrious Opsimath
 
beutelwolf's Avatar
 
Join Date: Sep 2005
Location: Perfidious Albion
Posts: 20,986
Thanks: 51,671
Thanked 457,723 Times in 20,899 Posts
beutelwolf 1000000+beutelwolf 1000000+beutelwolf 1000000+beutelwolf 1000000+beutelwolf 1000000+beutelwolf 1000000+beutelwolf 1000000+beutelwolf 1000000+beutelwolf 1000000+beutelwolf 1000000+beutelwolf 1000000+
Default


I have played around with PaintShopPro to find a setting would recover a bit of that dulled color, and so far the best results are using "Vibrancy" under Hue+Saturation. With a value of 60% the above was produced, from the original seen earlier.
beutelwolf is offline   Reply With Quote
The Following 5 Users Say Thank You to beutelwolf For This Useful Post:
Old 07-17-2015, 12:48 AM   #25
Truenonio
Senior Member
 
Truenonio's Avatar
 
Join Date: Nov 2009
Posts: 259
Thanks: 3,744
Thanked 2,468 Times in 322 Posts
Truenonio 10000+Truenonio 10000+Truenonio 10000+Truenonio 10000+Truenonio 10000+Truenonio 10000+Truenonio 10000+Truenonio 10000+Truenonio 10000+Truenonio 10000+Truenonio 10000+
Default

Buff! I have my own interests in correcting some old images, but I don't know how much
to make in this case and the improve that I got was not so notable wit this images:



It's a shame that was so popular taking pictures with the cell cams; I took a few ones from
an supermarket catalog with a Fuji XQ1, not the best but does the work; and obviously
without plastic bags ha ha [hateful vendor costume]
and even crop from a full screenshot looks a few acceptable for instance:





the only "problem" with it is the size files, for non cropped image is +/- 5 MG
4,5 in this case:

Last edited by Truenonio; 07-17-2015 at 01:08 AM..
Truenonio is offline   Reply With Quote
The Following 6 Users Say Thank You to Truenonio For This Useful Post:
Old 12-08-2015, 01:28 PM   #26
deepsepia
Vintage Member
 
deepsepia's Avatar
 
Join Date: Jul 2007
Location: Upper left corner
Posts: 3,014
Thanks: 12,536
Thanked 25,592 Times in 2,996 Posts
deepsepia 100000+deepsepia 100000+deepsepia 100000+deepsepia 100000+deepsepia 100000+deepsepia 100000+deepsepia 100000+deepsepia 100000+deepsepia 100000+deepsepia 100000+deepsepia 100000+
Default

Quote:
Originally Posted by beutelwolf View Post

I have played around with PaintShopPro to find a setting would recover a bit of that dulled color, and so far the best results are using "Vibrancy" under Hue+Saturation. With a value of 60% the above was produced, from the original seen earlier.
One thing I notice with that image is that there's a "hotspot" most likely caused by a flash, you see this with any piece of paper that you photograph under a flash. Before you do other corrections, fixing the hotspot so that the center and the edges are a more even brightness helps a lot.

I do this by creating a graduated radial mask that approximates the falloff in brightness, I then use that as a selection, and adjust the brightness of the image. That is, I'll brighten the edges and/or darken the center of the image as selected by the mask.

You can do a mask like this in Photoshop in one or two steps, probably similar in Paintshop. Here's the before and after of a selection and radial brighten, your original on the left, the mask in the middle, modified on the right. Its a subtle effect, but the thing is, getting even brightness impacts everything else, notably contrast and vibrance, so you do this correction first. The tricky part is estimating the mask, which you have to do by eye, a bit of trial and error.


Last edited by deepsepia; 12-08-2015 at 01:44 PM..
deepsepia is online now   Reply With Quote
The Following User Says Thank You to deepsepia For This Useful Post:
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump




All times are GMT. The time now is 12:09 AM.






vBulletin Optimisation provided by vB Optimise v2.6.1 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.