Search found 49 matches

by b0bcat
06 Jun 2017, 17:42
Forum: Tutorials/How-To's
Topic: Heavy Speckling
Replies: 3
Views: 8375

Re: Heavy Speckling

The specimen tif supplied is b&w 2-colors and although 300dpi, I noticed is either insufficiently defined and/or too over-exposed to capture small typeface print. If possible, the quickest route would seem to be re-scanning in greyscale at a suitable dpi, maybe say, 400, and adjusting the scanne...
by b0bcat
22 May 2017, 15:52
Forum: Scan Tailor
Topic: What geometric distortions selections to use/choose?
Replies: 5
Views: 12302

Re: What geometric distortions selections to use/choose?

@OP - I haven't read your other posts and don't know how you scanned the image e.g. flatbed or camera, but if it were me, bitter experience would reconfirm the rule: time is most efficiently spent in getting the image quality optimal at the image/acquire stage, and not in trying to achieve too much ...
by b0bcat
29 Jan 2017, 15:05
Forum: Software
Topic: Lizardtech virtual printer
Replies: 3
Views: 11860

Re: Lizardtech virtual printer

Has anyone got a link to the MS Windows version of LizardTech Virtual Printer? I'm wondering if it has been 'disappeared' :?: or has changed name as I'm not finding it ...
by b0bcat
10 Dec 2016, 20:37
Forum: Scanners and Build Threads
Topic: Best non-DIY book scanners
Replies: 47
Views: 88575

Re: Best non-DIY book scanners [Plustek; Avision]

1) dead Plustek OpticBook 4800 - thankfully amazon.co.uk took this back and indeed declined my offer of pro-rata reduction of the fully reimbursed price for having used it for 7 months. The scans produced were fine and it operated faster than the 3600 plus you can get much closer to the spine but fo...
by b0bcat
01 Dec 2016, 21:43
Forum: Scanners and Build Threads
Topic: Best non-DIY book scanners
Replies: 47
Views: 88575

Re: Best non-DIY book scanners

Sounds about right - even for b&w text only I've learned it is indeed best to scan in greyscale and to take care first of all adjusting scanner options like brightness, contrast and gamma, especially with faded/yellowed pages, plus of course using a backing card when scanning thin paper with tex...
by b0bcat
15 Nov 2016, 20:15
Forum: HELP
Topic: How 2 brighten / lighten 2 colours (1 BitsPerPixel) image?
Replies: 2
Views: 7464

Re: How 2 brighten / lighten 2 colours (1 BitsPerPixel) image?

Thanks for that. In my experience it's true that fiddling with the scanner controls can often overcome this problem, however in the present case each affected page is a half and half of normal type (faint, under-inked) and emboldened italic letters (which being over-exposed 'merge ' into each other)...
by b0bcat
14 Nov 2016, 22:52
Forum: HELP
Topic: How 2 brighten / lighten 2 colours (1 BitsPerPixel) image?
Replies: 2
Views: 7464

How 2 brighten / lighten 2 colours (1 BitsPerPixel) image?

In the foothills of learning GIMP ably assisted by the local library's now slightly dated ' Beginning GIMP: From Novice to Professional ' by Akkana PECK, I have been unable however to find any means of brightening / lightening a (part) page of a scanned image where (say) the upper half gives the app...
by b0bcat
05 Oct 2016, 13:56
Forum: Programs, Software releases, and more.
Topic: Make a djvu file and add ocr: DjVuToy; TiffDjvuOcr; CuneiDjVu
Replies: 22
Views: 42018

Re: Make a djvu file and add ocr: DjVuToy; TiffDjvuOcr; CuneiDjVu

Thanks for the heads-up @dtic. DjVuToy certainly provided in my testing a good - and fast - standard of ocr as well as DjVu file creation, but I'm hopeful the 'open source' tradition can be continued with it in parallel via TiffDjVuOcr as and when you have the time to update or - if willing - to mak...
by b0bcat
29 Sep 2016, 18:35
Forum: Scan Tailor
Topic: Splitting pages produces miniature page images
Replies: 6
Views: 6520

Re: Splitting pages produces miniature page images

@L.Willms I have experienced your problem but only rarely - in fact the only case I recall offhand was I think when I dismantled somebody else's pdf which comprised a single first page and then all subsequent pages were landscape/2 pages side by side like open book. I extracted these pages as tiff f...
by b0bcat
21 Sep 2016, 15:49
Forum: Programs, Software releases, and more.
Topic: Make a djvu file and add ocr: DjVuToy; TiffDjvuOcr; CuneiDjVu
Replies: 22
Views: 42018

Re: Make a djvu file and add ocr: DjVuToy; TiffDjvuOcr; CuneiDjVu

Keyboard's wearing out LOL... in the above "discarded the idea a few years ago that ocr text only was impractical for faithful reproduction" obviously = "discarded the idea a few years ago that ocr text-only was practical for faithful reproduction"... Yet another question so far ...