Search found 453 matches

by Dieter Mayr
December 31st, 2015, 5:39 am
Forum: Picture Window Support
Topic: Generating a Colour Image
Replies: 13
Views: 5796

Re: Generating a Colour Image

Jonathan, would it be theoretically possible to create the colour Marv is looking for by combining the Luminance channel of the grey patch with the a*b channels from the colour patch ? (L*a*b combining is not possible now in PWP, thats why theoretically). Im not 100% sure if the Extract Channel - Lu...
by Dieter Mayr
December 23rd, 2015, 2:22 pm
Forum: Picture Window Support
Topic: Paint Tool
Replies: 8
Views: 8546

Re: Paint Tool

... and don't forget you can use Ctrl+T to bring the paint (or any other) transformation window to the top of the pile. It would probably be nice if Ctrl+T (or a other shortcut) could open the color picker from within the transformation window (or bring both windows). When both windows are hidden u...
by Dieter Mayr
December 16th, 2015, 4:00 pm
Forum: Picture Window Support
Topic: Magic Lantern (for Canon) Dual ISO feature
Replies: 4
Views: 2034

Re: Magic Lantern (for Canon) Dual ISO feature

mjdl, yes, i can confirm that. The S3 was my first DLSR. It was damn slow when saving RAFs to the CF card (was a bit faster saving to the xD card, but i never liked those small thingies) It was not possile to utilize the double pixels with PWP as RAW-converter, it was just possible with Fuijis own s...
by Dieter Mayr
December 13th, 2015, 10:56 am
Forum: Picture Window Support
Topic: Magic Lantern (for Canon) Dual ISO feature
Replies: 4
Views: 2034

Re: Magic Lantern (for Canon) Dual ISO feature

A smiliar approach was Fuji's SuperCCD SR sensor introduced in 2003. It had 2 photodiodes for each pixel, one high sensitive and one low sensitive. http://www.dpreview.com/articles/6851251325/fujisuperccdsr All the computation to combine the 2 images was done inside the camera. Would be interesting ...
by Dieter Mayr
December 7th, 2015, 12:01 pm
Forum: Picture Window Support
Topic: White Balance & Color Correction
Replies: 9
Views: 3243

Re: White Balance & Color Correction

Doug,

For me, it worked well with measuring the grey part of the card, so it should be ok.
by Dieter Mayr
December 7th, 2015, 11:59 am
Forum: Picture Window Support
Topic: Gradient Tool
Replies: 17
Views: 6206

Re: Gradient Tool

Marv,

If your histogram is ok it means that your data is ok, so the bands are caused by the (monitor) output chain somehow.
If it is possible a printout of a small strip of the image would make clear how the print looks like.
by Dieter Mayr
December 7th, 2015, 11:53 am
Forum: Picture Window Support
Topic: White Balance & Color Correction
Replies: 9
Views: 3243

Re: White Balance & Color Correction

Doug, I took your Jpeg picture and even though it looks kind of redish, it has actually a blue tint. I have developed your NEF with 6000K and measured the grey background with the readout tool. Neat the Top right corner I measure quiet exact neutral grey, 30% in each channel, a variation of about +/...
by Dieter Mayr
December 7th, 2015, 10:53 am
Forum: Picture Window Support
Topic: Grid in Workflow Preview
Replies: 3
Views: 1330

Re: Grid in Workflow Preview

Kiril,

Grid is greyed out in Workflow (at least i did not find a Widget where it is active).
I think it would be a useful addition to be able to use grid in workflows, too
by Dieter Mayr
December 7th, 2015, 6:13 am
Forum: Picture Window Support
Topic: White Balance & Color Correction
Replies: 9
Views: 3243

Re: White Balance & Color Correction

Doug, I have played around a little with your pictures. DSC_0005.NEF: When probing the white field of the card gives a very warm (red) result - about 6300K color temp. Probing the grey part of the card or the grey background results in 6000K color temp, and a good result for my taste. Probing the wh...
by Dieter Mayr
December 5th, 2015, 3:30 pm
Forum: Picture Window Support
Topic: Gradient Tool
Replies: 17
Views: 6206

Re: Gradient Tool

Marv, Did you have a look at the histogram of your gradient ? A gradient over the whole width or hight on the image should give a perfect rectangle, for lengths that are not divisible by 256 for 8 bit color there are some periodic spikes, because not all colors can have the same count of pixels. But...

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