James, I like your idea about GIMP. I am going to post about this on another thread too.
Thanks Kevin On 10/10/05, James Gray <[EMAIL PROTECTED]> wrote: > Kevin, > You could try GIMPshop which is available at www.gimp.org. It is free and > powerful. There is only a beta version for Windows XP, but it runs on Mac > OS X. I am not clear if it runs on Linux although the parent of GIMPshop is > GIMP which I am sure runs on Linux. I can only assume that GIMP and > GIMPshop have ways of automating the processing of "images" so you can > increase contrast, apply an unsharp mask, and reduce resolution in batch > mode. > > I think you documents will be much more readable if you use 8 bits per > pixel. > Jim Gray > > ----- Original Message ----- > From: "Kevin Toppenberg" <[EMAIL PROTECTED]> > To: <[email protected]> > Sent: Monday, October 10, 2005 9:53 AM > Subject: Re: [Hardhats-members] Imaging Disk requirements? > > > James, > > Thanks for the info. I had intended 1 bit per pixel. But your advise > is appeciated. > > I have yet to get the tools in place to let me do all this image > manipulations. > > Thanks > Kevin > > On 10/10/05, James Gray <[EMAIL PROTECTED]> wrote: > > Since no one has apparently discussed these issues on this topic I will > > point some things out. > > > > Kevin, By BW do you mean gray scale (8 bits per pixel) or bitmapped (1 bit > > per pixel)? > > I assume you mean gray scale. You can very good documents this way. > > First > > scan a document at 300 dpi or higher, then increase the contrast of the > > image, then apply a good unsharp mask to the document. Then you can > > reduce > > the resolution down to 150 dpi. If you take these steps you will end up > > with documents that are *MORE* readable than documents scanned at 300 dpi > > and left that way. The steps could be automated so that it works well. > > Also jpeg compression can give you documents that are 10% of the size of > > the > > uncompressed image with little loss in such "images". > > > > Jim Gray > > > > ----- Original Message ----- > > From: "Nancy Anthracite" <[EMAIL PROTECTED]> > > To: <[email protected]> > > Sent: Wednesday, September 28, 2005 9:53 AM > > Subject: Re: [Hardhats-members] Imaging Disk requirements? > > > > > > > The OCR programs I have used require 300 dpi, and I suspect that might > > > be > > > something that should be considered for the future as it may be that not > > > only > > > typed but hand written notes could be loaded right into the database in > > > a > > > compact fashion and the scanned images archived for backup purposes > > > only. > > > > > > On Wednesday 28 September 2005 08:49 am, Mike Schrom wrote: > > > I think fax scans are lower about 150 dpi, but still, usually, readable. > > > That's a factor of four smaller file size, but even at 300, your figures > > > yield about 25,000 charts per terabyte. That's four 250 gig hard drives > > > at about $50 each (on sale). > > > > > > Mike > > > > > > Kevin Toppenberg wrote: > > >> As I get close to completing a document imaging system that uses > > >> standard VistA Imaging code, I have wondered what use of the system > > >> will do to my disk space. > > >> > > >> Does anyone know what typical scanning resolution is (300 dpi?), and > > >> how much disk space this would take in BW, compressed as JPG file? I > > >> am guessing about 150k per image (image size 8.5x11 inches). If I did > > >> my math right, that would be about 6,600 images per gigabyte. Many of > > >> my charts have about 200 pages in them, so this would be about 25 > > >> complete charts per gigabyte. > > >> > > >> I am asking this because I am not planning on implementing the > > >> background processor that archives images off of the magnetic disks > > >> into an optical jutebox. It seems that disk drives are growing in > > >> size fast these days. > > >> > > >> Any thoughts? > > >> > > >> Thanks > > >> Kevin > > >> > > >> > > >> ------------------------------------------------------- > > >> This SF.Net email is sponsored by: > > >> Power Architecture Resource Center: Free content, downloads, > > >> discussions, > > >> and more. http://solutions.newsforge.com/ibmarch.tmpl > > >> _______________________________________________ > > >> Hardhats-members mailing list > > >> [email protected] > > >> https://lists.sourceforge.net/lists/listinfo/hardhats-members > > > > > > ------------------------------------------------------- > > > This SF.Net email is sponsored by: > > > Power Architecture Resource Center: Free content, downloads, > > > discussions, > > > and more. http://solutions.newsforge.com/ibmarch.tmpl > > > _______________________________________________ > > > Hardhats-members mailing list > > > [email protected] > > > https://lists.sourceforge.net/lists/listinfo/hardhats-members > > > > > > -- > > > Nancy Anthracite > > > > > > > > > ------------------------------------------------------- > > > This SF.Net email is sponsored by: > > > Power Architecture Resource Center: Free content, downloads, > > > discussions, > > > and more. http://solutions.newsforge.com/ibmarch.tmpl > > > _______________________________________________ > > > Hardhats-members mailing list > > > [email protected] > > > https://lists.sourceforge.net/lists/listinfo/hardhats-members > > > > > > > > ------------------------------------------------------- > > This SF.Net email is sponsored by: > > Power Architecture Resource Center: Free content, downloads, discussions, > > and more. http://solutions.newsforge.com/ibmarch.tmpl > > _______________________________________________ > > Hardhats-members mailing list > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/hardhats-members > > > > > ------------------------------------------------------- > This SF.Net email is sponsored by: > Power Architecture Resource Center: Free content, downloads, discussions, > and more. http://solutions.newsforge.com/ibmarch.tmpl > _______________________________________________ > Hardhats-members mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/hardhats-members > > > > ------------------------------------------------------- > This SF.Net email is sponsored by: > Power Architecture Resource Center: Free content, downloads, discussions, > and more. http://solutions.newsforge.com/ibmarch.tmpl > _______________________________________________ > Hardhats-members mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/hardhats-members > ------------------------------------------------------- This SF.Net email is sponsored by: Power Architecture Resource Center: Free content, downloads, discussions, and more. http://solutions.newsforge.com/ibmarch.tmpl _______________________________________________ Hardhats-members mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/hardhats-members
