Daniel Reetz, the founder of the DIY Book Scanner community, has recently started making videos of prototyping and shop tips. If you are tinkering with a book scanner (or any other project) in your home shop, these tips will come in handy. https://www.youtube.com/channel/UCn0gq8 ... g_8K1nfInQ

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by strider1551
17 Jul 2011, 14:17
Forum: Software
Topic: Colored Text
Replies: 28
Views: 12471

Re: Colored Text

Yep, wih one little revision - I noticed I forgot a "done" to finish off the for loop. Of course, no need for the "#! /bin/bash" line if you're already in the terminal.
by strider1551
17 Jul 2011, 10:32
Forum: Software
Topic: Colored Text
Replies: 28
Views: 12471

Re: Colored Text

The script above would be doing a bit too much for you, since the bulk of it was trying to preserve only text, but also as either black or red. All you should need is a mogrify command. This would clean up all the images in the directory in which it is run, and then you could bind the images into PD...
by strider1551
15 Jul 2011, 12:56
Forum: Software
Topic: Depixeling Pixel Art
Replies: 7
Views: 3922

Re: Depixeling Pixel Art

Excellent link - can't believe I forgot about that one. I redid my comparison with four versions of the images. (1) base image, color, 375 dpi; (2) scantailor, color, 600 dpi; (3) scantailor, bitonal, 600 dpi; (4) potrace of #1, grayscale, 600 dpi. The original base image (#1) gave the best results ...
by strider1551
15 Jul 2011, 11:15
Forum: Software
Topic: Depixeling Pixel Art
Replies: 7
Views: 3922

Re: Depixeling Pixel Art

Edit: Misty replied while I was typing. Essentially, "what she said". My hunch was that it might be useful as a step before OCR. All the OCR engines that I know of work with raster (pixeled) graphics, not vector. That being said, I noticed they had comparisons of raster graphics that had been scale...
by strider1551
08 Jul 2011, 15:07
Forum: Introductions and connections
Topic: Google+
Replies: 6
Views: 7489

Google+

If anyone is interested in Google+, I just got in today and it looks like I can send out invites for the time being. Just send me a PM with your email. No promises - I got an invite from a random/awesome person at reddit last night, but it wasn't until today that the invite worked and I could sign u...
by strider1551
07 Jul 2011, 12:40
Forum: Software
Topic: Portable Software Suite...?
Replies: 22
Views: 13538

Re: Portable Software Suite...?

Strider: I've never had great success with ddjvu. It doesn't perform great for mixed text/image files, and only supports G4 compression so text isn't compressed as optimally as I'd prefer. Oh, I totally agree - ddjvu is not going to produce the best possible PDF, it's just the only option I know of...
by strider1551
07 Jul 2011, 06:48
Forum: Software
Topic: Portable Software Suite...?
Replies: 22
Views: 13538

Re: Portable Software Suite...?

Anyway, installed djvubind but when it's run, it says... ... Any idea...? Oh my... If you could please issue a bug on my issue tracker (https://code.google.com/p/djvubind/issues/list), that will make it easier to converse back and forth so I can figure out what happened, without mucking up the foru...
by strider1551
03 Jul 2011, 08:30
Forum: OCR/Optical Character Recognition
Topic: OCR- Do I need it?
Replies: 4
Views: 4872

Re: OCR- Do I need it?

In using OCR, at what point in the process do you use OCR? Does one perform processing in ST or BSW and use OCR? Is the order reverse? Typically it is done after post-processing the image in ST or BSW. They eliminate things like deskew that can really confuse the OCR. More importantly, most OCR pro...
by strider1551
27 Jun 2011, 20:23
Forum: Software
Topic: Converting to File Formats
Replies: 2
Views: 1773

Re: Converting to File Formats

Does OCR need to be used to convert a file to PDF, Amazon Kindle, Nook, etc.? Some formats can only contain images, some can contain images and OCR text, and some can only contain OCR text. If your friend needs to enlarge the text to read it, then a either images or OCR text formats will work. If t...
by strider1551
27 Jun 2011, 20:19
Forum: OCR/Optical Character Recognition
Topic: OCR- Do I need it?
Replies: 4
Views: 4872

Re: OCR- Do I need it?

What do you use OCR for? OCR stands for optical character recognition. When you have an image of a page from a book, your computer has no idea what text is contained in that image... it doesn't even know there is text at all. An OCR program will analyze the image and try to figure out what text is ...