> -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of > [EMAIL PROTECTED] > Sent: Friday, October 14, 2005 1:44 AM > To: [email protected] > Subject: RE: [inbox] Re: EOS 1D Mark II > > > > > > > > > > Hi Stan, > > > > Yes, PSCS came out with the improved bicubic smoothing for up > sampling but > > it still is not as good as what else is available. QImage uses a more > > advanced (CPU consuming) algorithm than bicubic with smoothing. > Check out > > the time bombed QImage demo. Once you figure out the way Q > works you will > > use it for all of your in-house print management and up sampling for > > outside > > service printing. For users of high pixel count bodies Q can help you > > make > > huge prints that look amazing! > > > > Cheers/Chip > > > > Hi, > > I read in one of the PS bibles that this should be done in the > RAW converter. There are some standard > interpolation sizes and this seems to work better than after the > RAW conversion interpolating in PS itself.. > > Regards > Leeuwtje > >
Hi Leeuwtje, >From what I've read ideally the RAW converter would do the resampling during conversion. But there is more to it than simply resampling, image quality is a key factor for my work. If that was all there was to it I would just resample during the RAW conversion process in C1 PRO. I LOVE the time saved using C1 PRO BTW. I use C1 PRO for virtually all of my actual work these days with a smattering of BB PRO for those really quick and dirty jobs that come up. Anyway, C1 PRO can resample during the conversion phase but there are a few problems using this workflow capture>upsample>convert>edit>output vs. the more conventional flow of: capture>convert>edit>resample>output. The primary issue being converted RAW TIFF files that have been upsampled during RAW conversion do not seem to stand up quite as well to post conversion processing as straight RAW file conversions without upsampling done during RAW conversion. I worked on figuring out what is going on but nothing I did resolved the slightly lesser image quality issues I had with the resulting upsampled RAW conversion images files. The other issue is a more serious problem but is more of a practical issue. As I shoot most of my work with an EOS 1Ds (or 1Ds mkII recently), saving in RAW format the files are largish and getting larger. I work in 16 bit as long as I can during editing and even though I have a couple of fairly fast computers (3.8GHz and 4GHz CPUs), with plenty of RAM (2GB and 4GB), the resulting RAW conversion phase upsampled files are kind of large files and take too long to edit and retouch during post RAW conversion processing. This only gets worse when using layers during editing and correction. Even on a native dimension image PSCS often shows that I'm using well over 1GB of RAM for PSCS. On a resampled files this is 4 times as much RAM used and the computer starts to swap and gets very S-L-O-W, 10-20 TIMES slower! This is bad for productivity and I hate to rush work anyway. So you can see why I prefer to wait until I'm finished doing post capture editing and correction before upsampling a flat image file (using QImage save to file), and doing the final output sharpening before printing when doing my highest quality level work. For anything that is not being used as large format paper/hard output I save a LOT of time and edit at native pixel dimensions and simply use QImage to resample, sharpen and output to one of the in-house printers. This is working for me and I hope the info helps you! Cheers/Chip * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
