External hard drives

[Angel]

Re: External hard drives

If 10 page book TIFF is 2.5GB, then 100 pages would be 25GB - is that correct?

Therefore, 300 books at 100 pages each (for the sake of argument - most are much bigger than 100 pages) would add up to a total of 7500GB...?

Does that mean 100GB would still be enough or not?

/confused

 

[weirdkidinabox]

Re: External hard drives

Your maths seems spot on, 7500 gigs (7.5tb???) is a hell of a lot though. Thats like 8 terabyte drives to cover that storage. Your looking at easily a few grand for that. Why is everything stored as TIFF files, why can you not just keep the resolution for print and then compress them as jepgs cause the tiffs are probably whats taking up most of the space. Thier usually a lossless format (uncompressed) which is high space absorbtion on memory. To be honest no average person is going to notice a big difference. Seriously, jpegs at 300ppi (or is it dpi?) resolution would be fine. The only reason people need big *** storage files like tiffs and RAW files is for editing at future dates through programs like photoshop and such.

Its not a matter of getting your PC to cope- its mainyl storage but transferred that much data dont be expecting to use your computer at full capacity for a few days. Either that or find the fastest transer method possible. Firewire I think or some such ting.

Gikoku- the reason why shes need so much is the reason above. Lossless files used in mass amounts. If you took one tiff per page for 100 pages that is a hell of alot of space.

 

[Solus]

Re: External hard drives

I believe most JPEG files are larger than TIFF files, I may be mistaken though

 

[weirdkidinabox]

Re: External hard drives

I believe most JPEG files are larger than TIFF files, I may be mistaken though

A compressed jpeg has a bigger file size as an uncompressed lossless tiff... dont think so somehow mate. Just exported a compressed jpeg at best quality possible from Photoshop CS3 and it came in at 2.4mb, exported it again as lossless tiff and it was 16.8mb. Thats an image with a resolution of 300ppi and a size of 2896x1944 pixels.

Its the compression factor in it all. Lossless tiffs compress and loss no data at all from an image meaning all the different colours and shades and tones and all the pixels are saved down to every last little detail, jpeg is a proper compression format where it makes the file size smaller and removes information that is deemed 'unnneccessary' for want of a better word.

TIFFs can be compressed using different settings and stuff when exported from programs like Photoshop but there is no guarantee they will be compatible with all image applications. Also if Im not mistaken TIFFs can also save layered data from programs like photoshop meaning depending on the file it could take up to, if not more, than the same size as a proper psd (photoshop) file but that would mean only photoshop or a similar program that deals with layers could open it. Though this part of my knowledge is slightly hazy.

 

[Solus]

Re: External hard drives

Lossless tiffs compress and loss no data at all from an image meaning all the different colours and shades and tones and all the pixels are saved down to every last little detail

So TIFF is a format used to store images in full detail? If so then it may be required that she use TIFF Format, since she is storing books.

 

[weirdkidinabox]

Re: External hard drives

So TIFF is a format used to store images in full detail? If so then it may be required that she use TIFF Format, since she is storing books.

Yup it is indeed, well for the most part. It could be required but it could also be unneccessary. A jpeg saved at high resolution for print would do the same job because at the end of the day almost nobody is really going to notice a big difference, usually TIFFs and lossless files are only stored if graphics folk are keeping the image for further editing at a later date.

 

[Angel]

Re: External hard drives

I'm not really sure of the reason why I am to save TIFF files...I could ask, I guess.

Legally, the charity have to have an electronic copy in full including all covers, blurb, publishing information etc - as well as a the physical copy of the book in storage somewhere. Whether that bears any relevance on the file type, I don't know. The software I use is called Abby Finereader 9.0 and is specifically for the analysis and reading of books in order to convert them to an uploadable/downloadable digital format.

The files are not edited in any way - unless the text is misread by the software and says something like "pastrg" instead of "pastry" - but I know nothing about file types, so there must be some reason why TIFF has been chosen rather than anything else. I have to store two text files of each book plus the TIFF...

Sorry if I'm confusing people - but good to know my maths isn't completely crap...good old calculators, eh?

 

[Solus]

Re: External hard drives

They are awfully demanding :hmm:
2 text document and an image? Why do they need the image if they have all of the text?

 

[Angel]

Re: External hard drives

*shrug* I really don't know. Like I said, they require a full digital copy of the book including all images and covers, so maybe that's why...

There are many variations of text readers which blind/visually impaired people may use - plus those who are wheelchair bound but still want to read without having to access physical books or be read to by someone else...

I'll ask the next time I get a chance and see if there isn't another way around it...

 

[Solus]

Re: External hard drives

I forgot about images in the books, you would need to make copies of the images then... If anything, you should ask if you can use a smaller file format so you don't have to buy a room full of hard drives :lol:

 

[Angel]

Re: External hard drives

Yeah, we've only got a diddy room for this work as it is...and I need all the space to store actual books :lol:

It's like with the physical books - it is highly unlikely they will ever be checked up on to see that we aren't doing anything illegal, but we have to by law keep copies to hand just in case. I bet that's the same thing with these darned TIFFs...

 

[Solus]

Re: External hard drives

You have to store all of the books?
Doesn't seem like a very fun job :wacko:

 

[Angel]

Re: External hard drives

I love books more than TV, films and gaming put together.

Plus I only have to store the ones I want to keep permanently - like for Jessica. All others are sent elsewhere after scanning to either a warehouse or to be guillotined and fed into some weird scanning machine which can do a 500 page book in less than ten minutes. I break stuff too easily so I'm not allowed to have a cool scanner like that...or a guillotine