Re: filmscanners: VueScan 6.4.7 Available
>Which Kodachrome profile do you use (25 ASA, 64 ASA, or the newer high >speed)? I have found that when scanning slides I almost always get a result that looks much more like the slide by setting Media type to Image rather than Slide film (which means that you can't select a film type in the Media tab). Usually with slides I set Color balance to Neutral also, but sometimes White balance. _ Get your FREE download of MSN Explorer at http://explorer.msn.com
Re: filmscanners: VueScan 6.4.7 Available
Ed, Which Kodachrome profile do you use (25 ASA, 64 ASA, or the newer high speed)? Most of my Kodachrome slides are 64 ASA. I've noticed some color shift in dark areas of Kodachrome slides with my Minolta Diamage Scan Dual (probably a scanner limitation). Auto black is better than 0 manual black setting. The VueScan results are MUCH better than Minolta's plugin. With Minolta's software, Kodachrome scans were usually hopeless. Thanks. Mike Duncan
Re: filmscanners: VueScan 6.4.7 Available
On Thu, 11 Jan 2001 16:26:19 EST ([EMAIL PROTECTED]) wrote: > It turns out that the new "Color|Image brightness" option is a > lot subtler than most people realize. Using it to increase or > decrease the overall image brightness is similar to applying > a gamma function (power function) but the colors don't fade > when you use it to increase the brightness. It works quite > well, and it does something that you can't do with curves > in Photoshop. Well, of course I'll reserve judgement until I've played with it:) I only use these controls to do rough adjustments so I can see the preview better before creating a 16bit/ch output. Regards Tony Sleep http://www.halftone.co.uk - Online portfolio & exhibit; + film scanner info & comparisons
Re: filmscanners: VueScan 6.4.7 Available
On Thu, 11 Jan 2001 16:47:20 -0500 Tim Meneely ([EMAIL PROTECTED]) wrote: > IWBNI > "It would be nice if" maybe? There, it wasn't so hard :-) > BTW, all of your (Tony) posts in this last batch were duplicated. Weird. I only got one copy here. Maybe a server reset. Regards Tony Sleep http://www.halftone.co.uk - Online portfolio & exhibit; + film scanner info & comparisons
Re: filmscanners: VueScan 6.4.7 Available
In a message dated 1/11/2001 5:08:12 PM EST, [EMAIL PROTECTED] writes: > It sounds similar to the way I manipulate raw color images in PS when they > come out of Vuescan or wherever, which is to convert to LAB and do my levels > and gamma corrections on the L channel, then convert back to RGB to do a > color balance. This is similar to what VueScan does, but there are problems with changing only the L channel and then converting back to RGB. You might try an experiment. Apply a gamma correction to the L channel using Photoshop, then save as RGB. Do the same correction with VueScan's "Color|Image brightness" function and save the image. Compare the two. Do this for increasing values of gamma (or image brightness) and see if the colors get paler in Photoshop as the overall image gets brighter. Also, pay close attention to what happens to colors that are saturated in each image. Regards, Ed Hamrick
Re: filmscanners: VueScan 6.4.7 Available
Ed: Appreciate the explanation... have another question... have a copy of VScan 6.4.5 which I decided to try with my Minolta Elit to scan some Reala negs... I was able to get it to work with the scanner, but am unable to use Vuescan on a previously scanned neg, which I have saved in PS6... I want to see how Vuescan works on 16 bit linear scans (they appear as a neg in PS, where I then invert them, this is proving to give me a better tonal range with much less highlight washout, etc.) as far as processing the scans... or do you recommed using Vuescan instead of the Minolta software from the beginning? Thanks in advance Mike Moore [EMAIL PROTECTED] wrote: > In a message dated 1/11/2001 2:16:53 PM EST, [EMAIL PROTECTED] writes: > > > > * Combined Image contrast and Image brightness into > > > one option (Color|Image brightness) and improved > > > the color constancy when changing image brightness > > > > Ah, I think I rather wish you hadn't done that Ed, it was fine as it was. > > Isn't this less flexible? > > It turns out that using a simple gamma function for contrast wasn't > working very well. If you used it to increase the overall brightness, > the colors looked washed out. The brightness option in previous > versions of VueScan was just a pixel multipler, and this was > basically useless as well, since it just caused the white point to > drop (the White point (%) option is far more useful). > > It turns out that the new "Color|Image brightness" option is a > lot subtler than most people realize. Using it to increase or > decrease the overall image brightness is similar to applying > a gamma function (power function) but the colors don't fade > when you use it to increase the brightness. It works quite > well, and it does something that you can't do with curves > in Photoshop. > > Regards, > Ed Hamrick
Re: filmscanners: VueScan 6.4.7 Available
on 11/1/01 4:26 pm, [EMAIL PROTECTED] at [EMAIL PROTECTED] wrote: > It turns out that the new "Color|Image brightness" option is a > lot subtler than most people realize. Using it to increase or > decrease the overall image brightness is similar to applying > a gamma function (power function) but the colors don't fade > when you use it to increase the brightness. It works quite > well, and it does something that you can't do with curves > in Photoshop. It sounds similar to the way I manipulate raw color images in PS when they come out of Vuescan or wherever, which is to convert to LAB and do my levels and gamma corrections on the L channel, then convert back to RGB to do a color balance. -- Johnny Deadman http://www.pinkheadedbug.com
Re: filmscanners: VueScan 6.4.7 Available
On Thu, 11 Jan 2001 18:58 + (GMT), Tony Sleep wrote: >Actually, IWBNI Vuescan installs did not overwrite Vuescan.ini! I've understood every one of your acronyms, throughout a long membership in this list, until this one. I'm SO disappointed with myself! Hmm. "It would be nice if" maybe? BTW, all of your (Tony) posts in this last batch were duplicated. Regards, Tim _ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com
Re: filmscanners: VueScan 6.4.7 Available
In a message dated 1/11/2001 2:16:53 PM EST, [EMAIL PROTECTED] writes: > > * Combined Image contrast and Image brightness into > > one option (Color|Image brightness) and improved > > the color constancy when changing image brightness > > Ah, I think I rather wish you hadn't done that Ed, it was fine as it was. > Isn't this less flexible? It turns out that using a simple gamma function for contrast wasn't working very well. If you used it to increase the overall brightness, the colors looked washed out. The brightness option in previous versions of VueScan was just a pixel multipler, and this was basically useless as well, since it just caused the white point to drop (the White point (%) option is far more useful). It turns out that the new "Color|Image brightness" option is a lot subtler than most people realize. Using it to increase or decrease the overall image brightness is similar to applying a gamma function (power function) but the colors don't fade when you use it to increase the brightness. It works quite well, and it does something that you can't do with curves in Photoshop. Regards, Ed Hamrick
Re: filmscanners: VueScan 6.4.7 Available
On Wed, 10 Jan 2001 18:39:00 EST ([EMAIL PROTECTED]) wrote: > You have to set both "Device|Bits per pixel" to "48 bit RGB" and > "Files|TIFF file type" to "48 bit RGB". Actually, IWBNI Vuescan installs did not overwrite Vuescan.ini! Regards Tony Sleep http://www.halftone.co.uk - Online portfolio & exhibit; + film scanner info & comparisons
Re: filmscanners: VueScan 6.4.7 Available
On Wed, 10 Jan 2001 13:47:08 EST ([EMAIL PROTECTED]) wrote: > * Combined Image contrast and Image brightness into > one option (Color|Image brightness) and improved > the color constancy when changing image brightness Ah, I think I rather wish you hadn't done that Ed, it was fine as it was. Isn't this less flexible? Regards Tony Sleep http://www.halftone.co.uk - Online portfolio & exhibit; + film scanner info & comparisons
Re: filmscanners: VueScan 6.4.7 Available
Ed I am talking with David Miller of ColoVision re a complication in my Profiler RGB and he wants a jpeg 9 of the colorchart at gamma 1.5...how do i give him the precise numeric gamma value now that there is no setting for gamma incrimental settings? Thanks Geoffrey - Original Message - From: <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, January 11, 2001 2:56 AM Subject: Re: filmscanners: VueScan 6.4.7 Available > In a message dated 1/10/2001 2:50:45 PM EST, [EMAIL PROTECTED] writes: > > > As I understand your contrast setting, it is really just the gamma/2.2. > > The "Color|Image contrast" setting doesn't exist in VueScan any more. > >
Re: filmscanners: VueScan 6.4.7 Available
Hi Ed, Just tried 6.4.7 on a Canon FS2710 and when I try and scan in 48 bit I am only getting a 24 bit file in PS6. Regards Geoff Murray www.geoffmurray.com > I just released VueScan 6.4.7 for Windows, Mac OS and Linux. > It can be downloaded from: > > http://www.hamrick.com/vsm.html >
Re: filmscanners: VueScan 6.4.7 Available
In a message dated 1/10/2001 6:38:04 PM EST, [EMAIL PROTECTED] writes: > Just tried 6.4.7 on a Canon FS2710 and when I try and scan in 48 bit > I am only getting a 24 bit file in PS6. You have to set both "Device|Bits per pixel" to "48 bit RGB" and "Files|TIFF file type" to "48 bit RGB". Regards, Ed Hamrick
Re: filmscanners: VueScan 6.4.7 Available
In a message dated 1/10/2001 2:50:45 PM EST, [EMAIL PROTECTED] writes: > As I understand your contrast setting, it is really just the gamma/2.2. The "Color|Image contrast" setting doesn't exist in VueScan any more. The new "Color|Image brightness" option does some very clever color processing which is new to VueScan. I don't think this color processing can even be done with Photoshop. If you change the gamma of an image with previous versions of VueScan or with Photoshop, you'll see that the colors change subjectively quite a bit. They change less with VueScan 6.4.7. > Also, does the contrast setting override the gamma in the color space? No, the gamma in the color space is what's used to encode the image, after the "Color|Image brightness" processing is done. Regards, Ed Hamrick
RE: filmscanners: VueScan 6.4.7 Available
> * Combined Image contrast and Image brightness into > one option (Color|Image brightness) and improved > the color constancy when changing image brightness > As I understand your contrast setting, it is really just the gamma/2.2. Why not label it gamma and remove the 2.2 division? I think enough people are used to gamma that having them enter 2.2 would be more logical than entering a contrast of 1.0. Also, does the contrast setting override the gamma in the color space? If I set AdobeRGB (which has a gamma of 2.2) and set the contrast to something other than 1, do I end up with a gamma of 2.2 or do I end up with a gamma of contrast/2.2?
filmscanners: VueScan 6.4.7 Available
I just released VueScan 6.4.7 for Windows, Mac OS and Linux. It can be downloaded from: http://www.hamrick.com/vsm.html What's new in version 6.4.7 * Combined Image contrast and Image brightness into one option (Color|Image brightness) and improved the color constancy when changing image brightness * Fixed problem with incorrect cropping on SprintScan 4000 and Minolta Scan Multi when scanning first image after starting VueScan * Added support for new LinoScan scanners * Fixed problem with 300 dpi previews on Epson FilmScan 200 * Minimum scan resolution on 300 dpi UMAX scanners is 75 dpi Regards, Ed Hamrick
