Adventures for your BBC micro BOOK on eBay

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leenew
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Adventures for your BBC micro BOOK on eBay

Post by leenew » Sun Oct 15, 2017 5:40 pm

Hi
Is anyone bidding on this?
It is missing in action and could have missing games in it.
I don't want to be bidding against fellow stardotters.
Could do with someone on here winning it though.
Lee.

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Lardo Boffin
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Re: Adventures for your BBC micro BOOK on eBay

Post by Lardo Boffin » Sun Oct 15, 2017 7:54 pm

Did you get any replies to this? Am happy to bid on it if you are not and then pass on to someone with a decent scanner!
BBC model B 32k issue 4, 16k sideways RAM, Watford 12 ROM board, Viglen twin 40/80 5.25" discs, Acorn 6502 coproc
BBC model B 32k issue 7, turboMMC, Opus Challenger 3 512k, Pi 3 coproc
BBC Master, Datacentre + HDD, pi co-proc

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Lardo Boffin
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Re: Adventures for your BBC micro BOOK on eBay

Post by Lardo Boffin » Sun Oct 15, 2017 8:08 pm

Wow. This one is going up in price rapidly!
BBC model B 32k issue 4, 16k sideways RAM, Watford 12 ROM board, Viglen twin 40/80 5.25" discs, Acorn 6502 coproc
BBC model B 32k issue 7, turboMMC, Opus Challenger 3 512k, Pi 3 coproc
BBC Master, Datacentre + HDD, pi co-proc

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Re: Adventures for your BBC micro BOOK on eBay

Post by lurkio » Sun Oct 15, 2017 8:11 pm

Lardo Boffin wrote:Wow. This one is going up in price rapidly!
Go ahead and bid on it, Lardo. Lee agrees. He'll confirm that shortly.

:idea:

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leenew
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Re: Adventures for your BBC micro BOOK on eBay

Post by leenew » Sun Oct 15, 2017 8:14 pm

I have put my Max bid on of £25. Outbid!
If you want to take over Lardo you are welcome :D
Lee.

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Lardo Boffin
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Re: Adventures for your BBC micro BOOK on eBay

Post by Lardo Boffin » Sun Oct 15, 2017 8:14 pm

I have bid. Just need a nervous emoticon to go with it!
BBC model B 32k issue 4, 16k sideways RAM, Watford 12 ROM board, Viglen twin 40/80 5.25" discs, Acorn 6502 coproc
BBC model B 32k issue 7, turboMMC, Opus Challenger 3 512k, Pi 3 coproc
BBC Master, Datacentre + HDD, pi co-proc

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leenew
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Re: Adventures for your BBC micro BOOK on eBay

Post by leenew » Sun Oct 15, 2017 8:37 pm

:-o


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Lardo Boffin
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Re: Adventures for your BBC micro BOOK on eBay

Post by Lardo Boffin » Sun Oct 15, 2017 8:54 pm

Hope it’s a good book! Who is going to volunteer to scan it? My printer / scanner is rubbish. :roll:
BBC model B 32k issue 4, 16k sideways RAM, Watford 12 ROM board, Viglen twin 40/80 5.25" discs, Acorn 6502 coproc
BBC model B 32k issue 7, turboMMC, Opus Challenger 3 512k, Pi 3 coproc
BBC Master, Datacentre + HDD, pi co-proc

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Re: Adventures for your BBC micro BOOK on eBay

Post by lurkio » Sun Oct 15, 2017 8:58 pm

Lardo Boffin wrote:Hope it’s a good book! Who is going to volunteer to scan it? My printer / scanner is rubbish. :roll:
I can think of at least one person who's definitely got the necessary skills..!

As a last resort, I can do it. My scanner is basic, and my OCR skills are worse, but they'll do at a pinch.

:idea:

dv8 wrote:
Attached is an OCRed and re-typeset copy of the BASIC ROM User Guide by Mark Plumbley. The zip file also includes an SSD containing all the listings in the book. BASIC_ROM_User_Guide.zip


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Lardo Boffin
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Re: Adventures for your BBC micro BOOK on eBay

Post by Lardo Boffin » Mon Oct 16, 2017 6:32 am

lurkio wrote:
Lardo Boffin wrote:Hope it’s a good book! Who is going to volunteer to scan it? My printer / scanner is rubbish. :roll:
I can think of at least one person who's definitely got the necessary skills..!

As a last resort, I can do it. My scanner is basic, and my OCR skills are worse, but they'll do at a pinch.

:idea:

dv8 wrote:
Attached is an OCRed and re-typeset copy of the BASIC ROM User Guide by Mark Plumbley. The zip file also includes an SSD containing all the listings in the book. BASIC_ROM_User_Guide.zip

Funny, I was thinking similar... :D I wonder how busy they are?
BBC model B 32k issue 4, 16k sideways RAM, Watford 12 ROM board, Viglen twin 40/80 5.25" discs, Acorn 6502 coproc
BBC model B 32k issue 7, turboMMC, Opus Challenger 3 512k, Pi 3 coproc
BBC Master, Datacentre + HDD, pi co-proc

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BigEd
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Re: Adventures for your BBC micro BOOK on eBay

Post by BigEd » Mon Oct 16, 2017 7:14 am

BTW, if you upload a zip of page images to archive.org, they will
- OCR
- convert to PDF, to text file and to ebook
- display a flipbook
- host everything
and all for free.

All you really need to know is to name the zip file to match *_images.zip

Images can be jpg, png, or quite possibly other formats.

If your scanner already made a PDF, you'd need to convert that back to a collection of image files.
I use the command line tool pdfimages for that, but there are of course many ways to do it.

One example among many: https://archive.org/details/BASICODE2Manual

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Re: Adventures for your BBC micro BOOK on eBay

Post by lurkio » Mon Oct 16, 2017 7:39 am

BigEd wrote:BTW, if you upload a zip of page images to archive.org, they will - OCR - convert to PDF, to text file and to ebook - display a flipbook - host everything and all for free.
Good point. I've actually done this myself recently. Must have slipped my mind. Okay, so, because this book's possibly unworthy of dv8's time and effort, I'll volunteer to scan it.

(I'll probably have to degrade the physical condition of the book though -- crack the spine at the very least -- because I only have a cheap flatbed scanner. But I don't suppose anyone's too distressed by that prospect..?)

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Re: Adventures for your BBC micro BOOK on eBay

Post by Lardo Boffin » Mon Oct 16, 2017 8:01 am

Thanks Lurkio. PM with your address and I will send it on once it arrives. As for the spine - we’ll, it’s a small price to pay in the great scheme of things. Plus there is another copy in Australia if anyone wants one with a good spine! Funnily enough the price of that one plus p&p equalled my bid. :D
BBC model B 32k issue 4, 16k sideways RAM, Watford 12 ROM board, Viglen twin 40/80 5.25" discs, Acorn 6502 coproc
BBC model B 32k issue 7, turboMMC, Opus Challenger 3 512k, Pi 3 coproc
BBC Master, Datacentre + HDD, pi co-proc

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Re: Adventures for your BBC micro BOOK on eBay

Post by dv8 » Mon Oct 16, 2017 12:20 pm

Getting a good OCR for this book might be a bit of a challenge.

I've got one of the other books in this series, 'Games For Your BBC Micro', and it uses a really horrible font for the listings that OCR struggles to make any sense out of.

To see if it's worth trying, we could do an experiment... Lurkio, when you get the book, if you could post a scan of one page of a listing I'll see if I can extract anything usable from it.

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Re: Adventures for your BBC micro BOOK on eBay

Post by lurkio » Mon Oct 16, 2017 12:32 pm

dv8 wrote:To see if it's worth trying, we could do an experiment... Lurkio, when you get the book, if you could post a scan of one page of a listing I'll see if I can extract anything usable from it.
Ok. Will do.

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Re: Adventures for your BBC micro BOOK on eBay

Post by Lardo Boffin » Mon Oct 16, 2017 1:37 pm

Not much use for an OCR test but this is a screen grab of the one for sale in Oz.
CD5DD1F3-6FAB-44FE-865D-1A66332A0186.jpeg
Same font?
BBC model B 32k issue 4, 16k sideways RAM, Watford 12 ROM board, Viglen twin 40/80 5.25" discs, Acorn 6502 coproc
BBC model B 32k issue 7, turboMMC, Opus Challenger 3 512k, Pi 3 coproc
BBC Master, Datacentre + HDD, pi co-proc

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Re: Adventures for your BBC micro BOOK on eBay

Post by BigEd » Mon Oct 16, 2017 1:51 pm

The archive.org approach managed to get these two lines out of that distorted image:

Code: Select all

690 S=S-5 
700 RETURN 
I would think a conventional scan of that would work well.

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Re: Adventures for your BBC micro BOOK on eBay

Post by dv8 » Mon Oct 16, 2017 2:40 pm

Lardo Boffin wrote:Same font?
No, this looks much better than the other book.
I agree with BigEd, we should be able to get good results from a decent quality scan.

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Re: Adventures for your BBC micro BOOK on eBay

Post by Lardo Boffin » Mon Oct 16, 2017 3:19 pm

Excellent. Let’s hope the uk and oz print are the same.
BBC model B 32k issue 4, 16k sideways RAM, Watford 12 ROM board, Viglen twin 40/80 5.25" discs, Acorn 6502 coproc
BBC model B 32k issue 7, turboMMC, Opus Challenger 3 512k, Pi 3 coproc
BBC Master, Datacentre + HDD, pi co-proc

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Lardo Boffin
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Re: Adventures for your BBC micro BOOK on eBay

Post by Lardo Boffin » Fri Oct 20, 2017 10:37 am

It arrived today. Below is a photo of the table of contents:-
52E14954-BC04-4EAF-B698-8ED03E591578.jpeg
BBC model B 32k issue 4, 16k sideways RAM, Watford 12 ROM board, Viglen twin 40/80 5.25" discs, Acorn 6502 coproc
BBC model B 32k issue 7, turboMMC, Opus Challenger 3 512k, Pi 3 coproc
BBC Master, Datacentre + HDD, pi co-proc

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Lardo Boffin
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Re: Adventures for your BBC micro BOOK on eBay

Post by Lardo Boffin » Fri Oct 20, 2017 10:40 am

And some of the listing text:-
614FB68F-0739-4B86-92F1-D4B1C09C55CE.jpeg
Let’s hope the orange staining throughout does not defeat the scanning!
BBC model B 32k issue 4, 16k sideways RAM, Watford 12 ROM board, Viglen twin 40/80 5.25" discs, Acorn 6502 coproc
BBC model B 32k issue 7, turboMMC, Opus Challenger 3 512k, Pi 3 coproc
BBC Master, Datacentre + HDD, pi co-proc

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Re: Adventures for your BBC micro BOOK on eBay

Post by leenew » Fri Oct 20, 2017 12:30 pm

Wooo! New games :D
Yeah, let's hope the scanning goes well [-o<

Lee.

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Re: Adventures for your BBC micro BOOK on eBay

Post by Lardo Boffin » Fri Oct 20, 2017 12:39 pm

leenew wrote:Wooo! New games :D
Yeah, let's hope the scanning goes well [-o<

Lee.
If not as the originator of the thread it falls to you to get typing! :lol:
BBC model B 32k issue 4, 16k sideways RAM, Watford 12 ROM board, Viglen twin 40/80 5.25" discs, Acorn 6502 coproc
BBC model B 32k issue 7, turboMMC, Opus Challenger 3 512k, Pi 3 coproc
BBC Master, Datacentre + HDD, pi co-proc

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Re: Adventures for your BBC micro BOOK on eBay

Post by leenew » Fri Oct 20, 2017 1:32 pm

8-[ :- TAXI!

Lee.

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Re: Adventures for your BBC micro BOOK on eBay

Post by lurkio » Mon Oct 23, 2017 9:21 pm

dv8 wrote:To see if it's worth trying, we could do an experiment... Lurkio, when you get the book, if you could post a scan of one page of a listing I'll see if I can extract anything usable from it.
Lardo Boffin wrote:... Let’s hope the orange staining throughout does not defeat the scanning!
Thanks, Lardo, for sending me the book. It's arrived!

Here are a few scans of the same double-page spread, with different settings:
  • text300dpi.tiff
    text300dpi.tiff (138.89 KiB) Viewed 391 times
  • text600dpi.tiff
    text600dpi.tiff (358.23 KiB) Viewed 391 times
  • B&W 300dpi
Any of those any good for OCRing? Do I need such a high dpi setting (300)?

:?:

The filesize of the colour scan at 300dpi was over 15MB!

:!:

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Re: Adventures for your BBC micro BOOK on eBay

Post by dv8 » Tue Oct 24, 2017 10:53 am

lurkio wrote:Any of those any good for OCRing?
The 300dpi text setting should be good enough, but it's introducing a bit too much noise into the image (the worst of it is around lines 310 and 320).

Does your scanner software have the option to adjust the black/white threshold?
lurkio wrote:Do I need such a high dpi setting (300)?
Unfortunately, yes. Once you go below 300 the errors start to creep in.

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Re: Adventures for your BBC micro BOOK on eBay

Post by lurkio » Tue Oct 24, 2017 11:06 am

dv8 wrote:
lurkio wrote:Any of those any good for OCRing?
The 300dpi text setting should be good enough, but it's introducing a bit too much noise into the image (the worst of it is around lines 310 and 320).
Is 600dpi good enough then? I'm happy to stick with 600dpi if necessary.

Is the "text" mode better than the "B&W"? Which should I go with -- "text" or "B&W"?
dv8 wrote:Does your scanner software have the option to adjust the black/white threshold?
I'll have a look. I doubt it though.

:idea:

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Re: Adventures for your BBC micro BOOK on eBay

Post by BigEd » Tue Oct 24, 2017 11:10 am

I think I'd go for the black&white version but save as jpeg instead of tiff. Should come out to about 1 megabyte per scan.

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Re: Adventures for your BBC micro BOOK on eBay

Post by lurkio » Tue Oct 24, 2017 11:29 am

BigEd wrote:I think I'd go for the black&white
Is the "B&W" version better for OCRing than the "text" version is?

:?:

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