Re: [Gimp-user] restoring faded transparencies

2010-02-19 Thread Norman Silverstone
snip After a lot of too-ing and fro-ing, plus an element of magic, I actually found the Restore item in the menu! I then tried two scanned slides with Restore. The one I have described already (boy in Napoleon outfit in front of mountain) and another, a field of red poppies with

Re: [Gimp-user] restoring faded transparencies

2009-09-27 Thread Ilya Zakharevich
On 2009-09-28, Marcus for...@gimpusers.com wrote: Geoff, great work, I am particularly impressed by the theory behind your plugin. http://www.lionhouse.plus.com/photosoftware/gimp_plugins/ gives err404. Any idea where one can currently get it? Thanks, Ilya

Re: [Gimp-user] restoring faded transparencies

2009-03-21 Thread norman
Looking through the examples I noticed that B and G had a colour cast similar to the colour produced by the filter on colour negatives. Some months ago I spent some time turning colour negatives into a digital form and then processing them in GIMP. Having got the original RAW images I had a look

Re: [Gimp-user] restoring faded transparencies

2009-03-20 Thread norman
snip I owe Norman a sincere apology. At some time in the past a line of code got deleted from my plug-in. (It went through dozens of versions!) This has no effect on the restorations with default settings but the degree of restoration slider does not work properly, especially when the

Re: [Gimp-user] restoring faded transparencies

2009-03-17 Thread norman
I am still interested in the use of this plug-in and have been trying out a variety of tests with a selection of my slide copies. This test may not be strictly valid but I have been measuring the colour value of a white item using different settings of Restore and assuming that the blue cast has

Re: [Gimp-user] restoring faded transparencies

2009-02-27 Thread norman
It would be useful if the slider range could be altered, especially to be able to go below 0.7. I am not a programmer and, therefore, I do not know if this is possible or how complicated it is but, if it can be done, I would love to be able to try the effect. Norman

Re: [Gimp-user] restoring faded transparencies

2009-02-27 Thread Doug
norman wrote: It would be useful if the slider range could be altered, especially to be able to go below 0.7. I am not a programmer and, therefore, I do not know if this is possible or how complicated it is but, if it can be done, I would love to be able to try the effect. Norman

Re: [Gimp-user] restoring faded transparencies

2009-02-27 Thread norman
snip Thanks, I will try my hand at changing the slider and see what happens. The main reason I have in wanting to go lower than 0.7 is to see, if possible, where the loss of detail starts to occur. I changed the 0.7 setting to 0.2 and ran restore. Just had a quick look and report that the

Re: [Gimp-user] restoring faded transparencies

2009-02-25 Thread norman
First, to put things into context. It was always a source of frustration that one was not able to manipulate colour transparancies in the same way that black and white negatives could be manipulated in the darkroom. (Amateur colour printing had not yet arrived). So, when I had set up my digital

Re: [Gimp-user] restoring faded transparencies

2009-02-24 Thread Doug
norman wrote: snip Thanks for your message. As you deduce I am more interested in the processing algorithm than the coding. There are too many poor results at the moment and I suspect there will be modifications to the method when I have more experience of its performance. For this

Re: [Gimp-user] restoring faded transparencies

2009-02-22 Thread norman
I was scanning a lot of colour transparencies, some taken up to 40 years ago, and found that in some cases the colours had deteriorated badly. After a lot of experimenting I have developed an automatic way of improving the digital scans using gimp. I have put a technical article, the gimp

Re: [Gimp-user] restoring faded transparencies

2009-02-22 Thread bgw
geoff wrote: I was scanning a lot of colour transparencies, some taken up to 40 years ago, and found that in some cases the colours had deteriorated badly. After a lot of experimenting I have developed an automatic way of improving the digital scans using gimp. I have put a technical

Re: [Gimp-user] restoring faded transparencies

2009-02-22 Thread saulgoode
Quoting geoff for...@gimpusers.com: I was scanning a lot of colour transparencies, some taken up to 40 years ago, and found that in some cases the colours had deteriorated badly. After a lot of experimenting I have developed an automatic way of improving the digital scans using gimp. I have

Re: [Gimp-user] restoring faded transparencies

2009-02-22 Thread Doug
geoff wrote: I was scanning a lot of colour transparencies, some taken up to 40 years ago, and found that in some cases the colours had deteriorated badly. After a lot of experimenting I have developed an automatic way of improving the digital scans using gimp. I have put a technical

Re: [Gimp-user] restoring faded transparencies

2009-02-22 Thread norman
snip I have a large collection of old slides showing all the problems you describe in your article to greater or lesser degree, so I was extremely interested in your post. I've downloaded your plugins. Unfortunately I get a Forbidden error when I try to download the readme.txt; and it's

Re: [Gimp-user] restoring faded transparencies

2009-02-22 Thread norman
snip I have no experience of UFRaw. If you can get your images into gimp my plug-in should work. I have just changed it to remove the saving of debug data. I will be interested in your experience. Geoff I have tried with the plug-in but, unfortunately, I cannot detect anything

Re: [Gimp-user] restoring faded transparencies

2009-02-22 Thread Tobias Jakobs
Hi, I have problems to open the readme.txt: http://www.lionhouse.plus.com/photosoftware/restore/readme.txt 403 Forbidden You don't have permission to access /photosoftware/restore/readme.txt on this server. On Sun, Feb 22, 2009 at 11:51, geoff for...@gimpusers.com wrote:

Re: [Gimp-user] restoring faded transparencies

2009-02-22 Thread norman
snip Sorry you are having problems. It sounds to me that you are confusing the batch_restore plug-in with the restore plug-in. The former is for doing a whole set of photographs. The latter is for a single one. Load the image into gimp and go to the restore menu at the top of the window.

Re: [Gimp-user] restoring faded transparencies

2009-02-22 Thread Alec Burgess
Tobias Jakobs (tobias.jak...@googlemail.com) wrote (in part) (on 2009-02-22 at 14:51): On Sun, Feb 22, 2009 at 11:51, geoff for...@gimpusers.com wrote: www.lionhouse.plus.com/photosoftware/restore. I would be interested in hearing from anyone who has worked on this problem and if you