Search found 10 matches

by elied
September 27th, 2009, 4:52 am
Forum: Picture Window Support
Topic: Macbeth Colour Checker and Illumination temperature
Replies: 11
Views: 8938

Re: Macbeth Colour Checker and Illumination temperature

Maciej, are you familar with this document? Especially section 5 and the charts in section 3.
by elied
September 6th, 2009, 4:13 am
Forum: Picture Window Support
Topic: Profiles and Color Workspace confusion
Replies: 5
Views: 5449

Re: Profiles and Color Workspace confusion

I think it is likely that the driver uses a generic profile for that scanner model rather than your profile that is specific to the individual device and since your home-made profile is probably better the 'conversion in PWP' option may provide a slight advantage. As to the Epson sRGB, both Epson eq...
by elied
September 5th, 2009, 5:21 am
Forum: Picture Window Support
Topic: Profiles and Color Workspace confusion
Replies: 5
Views: 5449

Re: Profiles and Color Workspace confusion

I agree with Dieter. As it is set up now the driver is converting to sRGB and you are then telling PWP that it is really in the scanner space and asking it to convert again. Best choice is probably to turn off color correction in the driver and let PWP do it, but alternatively you can leave the driv...
by elied
August 30th, 2009, 5:28 am
Forum: Picture Window Support
Topic: Dialog Box Opening
Replies: 3
Views: 3812

Re: Dialog Box Opening

http://photos.imageevent.com/elied/linkto/levels.jpg This has been happening by me ever since I started with PWP nearly 8 years ago - I think the version was 2H - and on two different computers. I hardly ever notice it because the only time when I need the window open entirely is if I want to reset...
by elied
July 29th, 2009, 6:46 am
Forum: Picture Window Support
Topic: PWP Raw and Output Color Space
Replies: 5
Views: 5275

Re: PWP Raw and Output Color Space

FWIW, In the days when I was doing my own printing - before my printer did a transmutation to paperweight - I regularly took the route RAW > Widegamut > Chrome D65.
Elie
by elied
July 6th, 2009, 6:25 am
Forum: Picture Window Support
Topic: LAB in Photoshop equivalent?
Replies: 4
Views: 4929

Re: LAB in Photoshop equivalent?

The advantage of the LAB color space is that the brightness value of the pixel is separated from its color values. PWP's default HSV space does the same thing, as does the alternative HSL space. V or L values represent brightness along different axes.
by elied
June 4th, 2009, 1:21 am
Forum: Picture Window Support
Topic: Vibrancy
Replies: 14
Views: 13385

Re: Vibrancy

The primary feature of a Vibrancy adustment is that it is not a linear increase in saturation but rather one in which less saturated colors are boosted more and highly saturated colors are relatively unaffected. PWP's two S curves, S>V and S>H, are much better for doing this than the simple slider i...
by elied
April 29th, 2009, 2:49 am
Forum: Picture Window Support
Topic: Combing Composition Guides
Replies: 4
Views: 7177

Re: Combing Composition Guides

That would leave me so confused I'd never be able to decide anything. :)
by elied
April 25th, 2009, 6:09 am
Forum: Picture Window Support
Topic: Naive Theoretical Colour Mgmt. continued.
Replies: 10
Views: 16227

Re: Naive Theoretical Colour Mgmt. continued.

I have to admit that I don't know what the effect of rendering intents would be when going from a smaller to a larger gamut. I suspect that they have no effect at all since their purpose is to determine the manner in which the data is compressed when going from big to small. From small to big there ...