Linar sharpen 2.1

[igor]

It works better and better thanks again Pekka !!!

[Pekka]

You're quick, I barely had time to upload it and there you are with the mail! Thanks :)

There's now a Mac download, too.
Version 2.1 has again better colors, especially very common dim magenta problem is now solved. Version 2 had some other problems due to hurry to tour which made me mess something. Now it's back... :)

[igor]

it have better colours but it I'll see too much noise?

[Roger_Cavanagh]

I've written up a comparison of LinearSharpen and LinearPro here:

www.rogercavanagh.com/tips/t12_q13.htm

My methodology is not perfect because I really need a colour measurement spider or some such device. I had done a quick update wrt LS2.1, which is much better.

Blues still seem to be a big problem, though.

Regards,

[T a z]

I'm really looking forward to testing out your new actions, Pekka...we appreciate you making them available to us.

And Roger...what can I say? Your continued contributions are equally as valuable. The write-ups and tips on your site are excellent.

Appreciate not only the research...but also the fact that you are a very active participant on the various forums where you seem willing to answer at length even the most mundane questions.

In a perfect world, it would seem we should all be able to contribute to the "Help Buy Roger a Spyder" fund so you could extend your research! :)

Cheers,

-Taz

[Pekka]

Roger_Cavanagh wrote:
I've written up a comparison of LinearSharpen and LinearPro here:

www.rogercavanagh.com/tips/t12_q13.htm

My methodology is not perfect because I really need a colour measurement spider or some such device. I had done a quick update wrt LS2.1, which is much better.

Blues still seem to be a big problem, though.

Regards,

Thanks Roger for your effort!

One small thing I'd like to ask you: did you convert to sRGB before converting to 8 bit and saving for web? I'm sure you did but wanted just to make sure, as with AdobeRGB colors are a bit pale if you export them to a nonprofiled JPEG.

Color cards are a good indicators, but you can not really trust it all to one color sample card (even if Gray Card was used to do WB).

What I have used to tune the colors is hundreds of photos of scenes I know well, and I try to get it very near or 'better' to D30 jpeg thumbs as I have noticed they have quite accurate tones if the WB is correct. The 'always-happening' WB errors with digital cameras and mixed light sources makes the whole color tuning thing very complicated, and so I have tried to use my eyes and my very good old Eizo to get overall good image for all images (I do batches of hundreds of photos for testing). Yesterday I sat 14 hours with my PC tuning the colors for 2.1 (!)

[Pekka]

igor wrote:
it have better colours but it I'll see too much noise?

It could be possible in theory because I do not do sharpening in Lab mode any more (RGB->Lab->RGB conversion in linear mode had problem of affecting histogram, as it's not entirely non lossy conversion) and the last USM is a bit stronger.

Use the 100-400 version where you adjust the last USM. Or try that ISO 800 option. Maybe you set levels too strong? They don't have to be, normally I just press enter and don't touch them I there is no specific need.

[Roger_Cavanagh]

Pekka wrote:
One small thing I'd like to ask you: did you convert to sRGB before converting to 8 bit and saving for web? I'm sure you did but wanted just to make sure, as with AdobeRGB colors are a bit pale if you export them to a nonprofiled JPEG.

Pekka,

Yes, I did convert to sRGB then 8-bit. And don't forget I didn't apply any other levels, curves or saturation, which would have been perfectly legitimate in the real world. I entirely agree with you about a single colour card sample; I wasn't entirely happy with having to use flash either (but the weather... ). I did admit that my method wasn't flawless. :) I'm sure there are other issues that I haven't considered, and I would imagine the dynamic range of digital ought to be factored in.

The trouble is (whatever the respective merits of LinearSharpen and LinearPro) whenever I look at a real image, whichever route I used, it looks great. :D So I thought I'd try to introduce a little bit of system.

Anyway all testing's off for the next few weeks. I 've just packed my baby to go back to Canon to have one of those pesky CMOS smudges removed that has resisted all my efforts. :(

Regards,

[Pekka]

Feel free to try a new 'Aftershave' action for LinearSharpen and LinearAction. It fixes some small color issues and 'tames' too strong red tint on some images. I've find it makes a difference. Run it _after_ LS or LA.

http://photography-on-the.net/D30/linear/LA_AfterShave.atn

Pekka

[oops]

You've worked too hard on this stuff, lately.

Take a break, for crying out loud! On some kind of world tour; answering e-mail from the swamp via satellite (maybe a LITTLE exagerated); keeping up the forum; etc. etc. Also, 14 hours comparing color for your new action? Man, you must love this!

Don't burn out, Pekka! Slow down. Take the wife out; ask someone to run the forum while you are gone and take a break; frolic in the white sands of some deserted island for a couple of weeks. Serious.

You will be a new man! (I'm going with you, BTW. When do we leave?)8)

[Pekka]

oops wrote:
You've worked too hard on this stuff, lately.

Take a break, for crying out loud! On some kind of world tour; answering e-mail from the swamp via satellite (maybe a LITTLE exagerated); keeping up the forum; etc. etc. Also, 14 hours comparing color for your new action? Man, you must love this!

Don't burn out, Pekka! Slow down. Take the wife out; ask someone to run the forum while you are gone and take a break; frolic in the white sands of some deserted island for a couple of weeks. Serious.

You will be a new man! (I'm going with you, BTW. When do we leave?):8

:) Thanks man, I think I'm getting some sleep now!

BTW: I just flew back from:

http://photography-on-the.net/D30/CRW_2668.jpg

[oops]

Hmmm.:O

[suske]

Hi everybody,
When i sharpen my images with the action, they look very light en the color is almost gone when i compare them with the 8bit converted or the jpeg's out of the crw's. What do i wrong?
Thanks in advance.
Sus

[Pekka]

suske wrote:
Hi everybody,
When i sharpen my images with the action, they look very light en the color is almost gone when i compare them with the 8bit converted or the jpeg's out of the crw's. What do i wrong?
Thanks in advance.
Sus


You have to use the action on TIFF image which is LINEAR i.e. make sure you have selected "Linear 16-bit TIFF" export on you conversion software (in Yarc, Bibble, TWAIN, Breeze etc.)

Does this help?

Pekka

[suske]

Thanks for the reply Pekka,
I use Yarc for linear export. From dos prompt: yarc -t -pl crw_****.crw. So I have this very dark image file, size 18MB. So far, no problem. Maybe i can put a resized example image in this forum but i don't know how to do so.
Sorry for my bad English. I live in Belgium and normaly speak dutch. Greetings, Sus

[Wheelie]

Hi Suske ,

You get that dark image BEFORE running LS , right ?
What does it look alike AFTER you applied the action ?
Mine work well . The result still needs a little attention I can easily fix with levels and/or curves .

Try again . It's worth the time and effort !

About Yarc , Michael Tapes and Bruce Henderson are working on a new version , YarcPlus .
It's still in alpha version but very promising .

For alpha testing , contact them at :
mtapes@earthlink.ne

BTW , I'm living in Belgium too ...

Wheelie

suske wrote:
Thanks for the reply Pekka,
I use Yarc for linear export. From dos prompt: yarc -t -pl crw_****.crw. So I have this very dark image file, size 18MB. So far, no problem. Maybe i can put a resized example image in this forum but i don't know how to do so.
Sorry for my bad English. I live in Belgium and normaly speak dutch. Greetings, Sus

[Wheelie]

Hi Sus ,

I replied to your mail but get ' permanent fatal errors '
on your e-mail address .
I was trying to send you a corrected pic using LS .
Please , contact again .

Wheelie

[charles beasley]

Pecca, I noticed you said that you no longer convert to lab for sharpening. Are you aware that you can run USM in RGB, then in the very next step (it is available only in the very next step after running USM) go>Edit>Fade>Luminosity to get the same effect without the image degradation of mode changes from RGB>Lab>RGB? Sort of having your cake and eating it too! I downloaded LS 2.1 for Mac and did not see this step. You probably know this and I in no way mean to insult your intelligence.