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by Dieter Mayr
December 7th, 2015, 12:01 pm
Forum: Picture Window Support
Topic: White Balance & Color Correction
Replies: 9
Views: 2941

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: 5614

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: 2941

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: 1181

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: 2941

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: 5614

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...
by Dieter Mayr
December 4th, 2015, 3:53 am
Forum: Picture Window Support
Topic: Gradient Tool
Replies: 17
Views: 5614

Re: Gradient Tool

Marv, Didn't think of it, of course you can't use 16 bit images as a mask. Sorry. But as you mentioned that you created a gradient in PS directly with the colors, you can do that in PWP too. In the Gradient window, you have that Black to White line with 1 and 2 at the beginning resp. the end. Click ...
by Dieter Mayr
December 3rd, 2015, 4:19 am
Forum: Picture Window Support
Topic: White Balance & Color Correction
Replies: 9
Views: 2941

Re: White Balance & Color Correction

Doug, I do not have expieriencew with the Whibal you mentioned, I took a look on the net and it looked quiet bright compared to a 18% standard grey card I use. The documentation i found in their website didn't tell either. A 50% grey in PWP comes very close to the tone of my grey card. And on a &quo...
by Dieter Mayr
December 2nd, 2015, 3:26 pm
Forum: Picture Window Support
Topic: White Balance & Color Correction
Replies: 9
Views: 2941

Re: White Balance & Color Correction

Doug, Can it be that light reflected from a coloured surface has fallen on your grey card ? The eyes are quiet well "shielded" in their sockets, a grey card held in the wrong angle can easily get some "coloured" light. Outside it can easily happen to hold the grey card so it gets...
by Dieter Mayr
December 2nd, 2015, 2:47 pm
Forum: Picture Window Support
Topic: Gradient Tool
Replies: 17
Views: 5614

Re: Gradient Tool

Marv, Did you try 16 bit for the gradient and solid colour image ? It should be much better using 16 bit. It could also be that the banding is just virtual, meaning that your monitor simply can not display the gradient correctly. I had a laptop a while ago that produced sigificant banding in the blu...

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