Post by thread:[OT] RE: 50MHZ Frequency Counter

I have scanned in the schematic from the magazine article. (Popular Electronics Nov 1994) The BMP file is about 1/2 MEG. I can e-mail this to any one who doe not have access to the magazine. Please respond to the e-mail address below. Do not send requests to the list. Thank you. spam_OUTstevemTakeThisOuTtanisys.com

Can you send me one ? Thanks, Harijs. .....harisKILLspam@spam@lnt.lv Miller, Steve wrote: > I have scanned in the schematic from the magazine article. (Popular Electronics > Nov 1994) The BMP file is about 1/2 MEG. > > I can e-mail this to any one who doe not have access to the magazine. Please > respond to the e-mail address below. Do not send requests to the list. Thank > you. > > stevemKILLspamtanisys.com

Steve Miller has sent me is BMP file, which I converted to GIF (about 70k) and put on my PIC resources page. Look here: http://www.falstaff.demon.co.uk/picres.html or http://www.falstaff.demon.co.uk/picfreq.gif Note that the picture is copyright someone, probably. Frank ------------------------------------------------------------------------ Frank A. Vorstenbosch <UCE_ACCEPT="NONE"> Phone: 0181 - 636 3000 Electronics and Software Engineer Mobile: 0976 - 430 569 Eidos Technologies Ltd., Wimbledon, London Email: .....favKILLspam.....eidos.co.uk

Hello Steve, Why don't you convert the BMP to JPG or something smaller? (You can use shareware Paint Shop Pro or a bunch of other packages.) Tom On Wednesday, February 18, 1998 7:32 PM, Miller, Steve [SMTP:EraseMEstevemspam_OUTTakeThisOuTTANISYS.COM] wrote: > I have scanned in the schematic from the magazine article. (Popular Electronics > Nov 1994) The BMP file is about 1/2 MEG. > > I can e-mail this to any one who doe not have access to the magazine. Please > respond to the e-mail address below. Do not send requests to the list. Thank > you. > > stevemspam_OUTtanisys.com

> -----Original Message----- > From: pic microcontroller discussion list > [@spam@PICLISTKILLspamMITVMA.MIT.EDU]On Behalf Of Tom Mariner > Sent: February 19, 1998 15:41 > To: KILLspamPICLISTKILLspamMITVMA.MIT.EDU > Subject: Re: [OT] RE: 50MHZ Frequency Counter > > > Hello Steve, > > Why don't you convert the BMP to JPG or something smaller? (You can use > shareware Paint Shop Pro or a bunch of other packages.) Please never JPEG for something like a schematic, GIF is much better for that kind of stuff. Just a personal preference. TTYL

At 04:37 PM 2/19/98 -0500, you wrote: >> -----Original Message----- >> From: pic microcontroller discussion list >> [RemoveMEPICLISTTakeThisOuTMITVMA.MIT.EDU]On Behalf Of Tom Mariner >> Sent: February 19, 1998 15:41 >> To: spamBeGonePICLISTspamBeGoneMITVMA.MIT.EDU >> Subject: Re: [OT] RE: 50MHZ Frequency Counter >> >> >> Hello Steve, >> >> Why don't you convert the BMP to JPG or something smaller? (You can use >> shareware Paint Shop Pro or a bunch of other packages.) > > Please never JPEG for something like a schematic, GIF is much better for >that kind of stuff. Just a personal preference. TTYL > I used to think that JPEG was really bad for schematics, too, but as long as the schematic isn't really cluttered, the JPEG schematics that I have seen have been good. Then again, I'm not sure how much jpegs differ in image quality. Sean +--------------------------------+ | Sean Breheny | | Amateur Radio Callsign: KA3YXM | | Electrical Engineering Student | +--------------------------------+ Fight injustice, please look at http://homepages.enterprise.net/toolan/joanandrews/ Personal page: http://www.people.cornell.edu/pages/shb7 TakeThisOuTshb7EraseMEspam_OUTcornell.edu Phone(USA): (607) 253-0315

There is no need to use JPG for schematics. Excellent compression can be obtained with just GIF or PNG, and even using RLE BMP is very good since a schematic is only 2 colour. GIF, PNG and RLE are all lossless compression, resulting in excellent expansion, whereas JPC is lossy, resulting in fuzzy images. JPG is really only required (and useful) for full colour or other graduated tone images. CIAO - Martin. On Thu, 19 Feb 1998 16:52:34 -0500, Sean Breheny <RemoveMEshb7TakeThisOuTCORNELL.EDU> wrote: >At 04:37 PM 2/19/98 -0500, you wrote: >>> {Original Message removed}

> -----Original Message----- > From: pic microcontroller discussion list > [PICLISTEraseME.....MITVMA.MIT.EDU]On Behalf Of Sean Breheny > Sent: February 19, 1998 16:53 > To: EraseMEPICLISTMITVMA.MIT.EDU > Subject: Re: [OT] RE: 50MHZ Frequency Counter > >> Why don't you convert the BMP to JPG or something smaller? (You can use > >> shareware Paint Shop Pro or a bunch of other packages.) > > > > Please never JPEG for something like a schematic, GIF is much > better for > >that kind of stuff. Just a personal preference. TTYL > > > > I used to think that JPEG was really bad for schematics, too, but as long > as the schematic isn't really cluttered, the JPEG schematics that I have > seen have been good. Then again, I'm not sure how much jpegs differ in > image quality. I agree, I have seen some good JPEG schematics, but I've seen alot more bad ones, Jpegs seems to blur things too much, with a GIF, you can zoom in really nicely and see the finest detail, with JPEGs my experience has shown that it tends to blur, contrast suffers and details are sometimes lost. And I guess aside from all that, JPEGs open more slowly on older machines than GIFs. Just my personal preference. TTYL

Yup! Funny, but when I sent the message it had "or something smaller" after the "JPG". Tom On Thursday, February 19, 1998 5:15 PM, Martin R. Green [SMTP:RemoveMEelimarEraseMEEraseMENOSPAMBIGFOOT.COM] wrote: > There is no need to use JPG for schematics. Excellent compression can > be obtained with just GIF or PNG, and even using RLE BMP is very good > since a schematic is only 2 colour. GIF, PNG and RLE are all lossless > compression, resulting in excellent expansion, whereas JPC is lossy, > resulting in fuzzy images. JPG is really only required (and useful) > for full colour or other graduated tone images. > > CIAO - Martin. > >

At 04:52 PM 2/19/98 -0500, you wrote: JPEG can be ok but watch how much compression you use as higher compression degrades image quality. >> Please never JPEG for something like a schematic, GIF is much >better for >>that kind of stuff. Just a personal preference. TTYL >> > >I used to think that JPEG was really bad for schematics, too, but as long >as the schematic isn't really cluttered, the JPEG schematics that I have >seen have been good. Then again, I'm not sure how much jpegs differ in >image quality. > Larry G. Nelson Sr. RemoveMEL.Nelsonspam_OUTKILLspamieee.org http://www.ultranet.com/~nr

At 17:56 1998-03-04 -0500, Larry G. Nelson Sr. wrote: >At 04:52 PM 2/19/98 -0500, you wrote: >JPEG can be ok but watch how much compression you use as higher compression >degrades image quality. > > >>> Please never JPEG for something like a schematic, GIF is much >>better for >>>that kind of stuff. Just a personal preference. TTYL >>> >> >>I used to think that JPEG was really bad for schematics, too, but as long >>as the schematic isn't really cluttered, the JPEG schematics that I have >>seen have been good. Then again, I'm not sure how much jpegs differ in >>image quality. >> For internal use we use pcx, because it is accurate, compact (two-color mode), and compatible also with elder programs. For external use gif is the best for schematics and such, because it«s wide compatibility and accuracy. Trying to further process a jpg schematic can cause problems, like when printing the blur often increases, and take much time as my inkjet printer switch to color mode... /Morgan / Morgan Olsson, MORGANS REGLERTEKNIK, SE-277 35 KIVIK, Sweden \ \ RemoveMEmrtTakeThisOuTspaminame.com, ph: +46 (0)414 70741; fax +46 (0)414 70331 /

Actually the best format for image size and accuracy (especially for 2 colors, is TIFF (packbits). a GIF works the same way - it just compresses the like colors for each line. If you have Win95 the built in Xerox (now Kodak) imaging controls deal with TIFF quite well. JPEG tries to compress areas, and does a lousy job with straight lines and text, and because it is a lossy compression will actually mess up the image if the compression is to high. so IMHO use GIFF if you want everybody to be able to deal with it (pcx is a very good second choice for compatibility), But for the best storage of a LOT of schematics and engineering drawings in general use TIFF (packbits). my $.02 Syd > {Original Message removed}