Search found 790 matches

by jsachs
January 1st, 2018, 10:38 pm
Forum: Picture Window Support
Topic: Inverting Tones in a B and W image
Replies: 4
Views: 141

Re: Inverting Tones in a B and W image

Transformation/Gray/Negative
by jsachs
December 22nd, 2017, 10:41 pm
Forum: Picture Window Support
Topic: Color > Negative
Replies: 2
Views: 139

Re: Color > Negative

Lower gamma values make the image brighter - if you move all three at once all three channels are lightened or darkened. Moving just one alters the color balance, especially in the midtones.
by jsachs
December 16th, 2017, 8:00 pm
Forum: Picture Window Support
Topic: Overlapping image and transform windows
Replies: 2
Views: 123

Re: Overlapping image and transform windows

This should much less of a problem in the new version although screen real estate remains a scarce resource that must be closely managed. A large, high res monitor is a definite plus.
by jsachs
December 14th, 2017, 11:33 am
Forum: Picture Window Support
Topic: Separaing tones/hues
Replies: 11
Views: 340

Re: Separaing tones/hues

Interesting idea, but sharpening the background makes its posterization more apparent.
by jsachs
December 14th, 2017, 8:24 am
Forum: Picture Window Support
Topic: Separaing tones/hues
Replies: 11
Views: 340

Re: Separaing tones/hues

I tried the following which may or may not be moving in the direction you want to go... 1) File New based on the original image and using the eyedropper to set the color of the new image to the background color. 2) Difference to subtract the background from the original, giving a more or less black ...
by jsachs
December 14th, 2017, 12:35 am
Forum: Picture Window Support
Topic: Separaing tones/hues
Replies: 11
Views: 340

Re: Separaing tones/hues

Not at my computer, but have you tried increasing the saturation. Either with the Saturation or the Selective Color Correction transformations.
by jsachs
December 8th, 2017, 9:13 pm
Forum: Picture Window Support
Topic: Show Clipped Pixels
Replies: 2
Views: 112

Re: Show Clipped Pixels

In file preferences you set the threshold values for highlight clipping. If any channel has this value or greater, it is considered a highlight. My guess is that for some reason your white highlights don't go all the way to 255. (For 16-bit images, clipping is at the 16-bit equivalent of the thresho...
by jsachs
November 28th, 2017, 12:10 pm
Forum: Picture Window Support
Topic: Lens Flare
Replies: 9
Views: 267

Re: Lens Flare

The idea is to match the lens flare - if the edge is sharp, the mask should be sharp - in this case the edge was soft. I don't remember exactly the value I used.
by jsachs
November 28th, 2017, 10:16 am
Forum: Picture Window Support
Topic: Lens Flare
Replies: 9
Views: 267

Re: Lens Flare

I created a circular mask over the lens flare and then used the mask blur tool to soften the edges a lot. Since the mask was red and the lens flare was red, it looks about the same.
by jsachs
November 27th, 2017, 10:31 pm
Forum: Picture Window Support
Topic: Lens Flare
Replies: 9
Views: 267

Re: Lens Flare

The quickest way I know of to deal with this is to first make a soft mask that covers the lens flare area and then use it with the Levels and Color transformation. I set the color balance to a cyan to counteract the excess red and dropped the brightness and saturation for the masked area. If you wan...

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