Digital Light & Color

Here is an observation - I'm not sure if I understand why this happens: In Colour Map, with a single colour pair, and with the Amount=100%, Tightness=1.00, Chroma Radius=0.00, and Brightness Radius=0.00, outer colour is still being replaced by the inner colour. Try for instance Mikes image - make ou...

Given Mike's example of a colour pair - the search colour being the bluish clouds and the replacement colour being more white: the range of search colour can be adjusted by 1) Chroma and brightness radii for this colour pair 2) the global tightness slider (for all colour pairs). My question is: what...

I'm not sure how hard it is to implement, but would others find it useful to have 'Show Affected Region' switch in Remap, similarly to Colour Correction. I find it invaluable in CC for finding inadvertent discontinuities. I also have a question. In CC there is 'pegging' analogy: if there is an unmov...

Or having and JPG-save preview - thought I'm sure if it was easy, it would have been done already...

I confirm Mike's concerns - I think that in some cases the Full Rnage in RAW dialog does not work as intended.

Many thanks Jonathan - I'll send them tomorrow. But is Dmin~0.1 and Dmax~1.6 for Durst Lambda on Endura Pro matte paper is realistic at all? I'm sorry for dragging this topic, but I was hoping to learn from people that are way more experienced in proper printing than I am. And it's also more or less...

I don't have a densitometer, but have a camera with a spot meter. Curiosity took the better of me I figured that maybe I could wing it. Here is what I've done: I've printed 5, solid gray, pretty large squares. The pixel values for those squares in 8 bit were: 0, 64, 128, 192, 255. Then I spot-metere...

Many thanks. There are several nice and clever visual tests that can closely estimate (or at least check) the system gamma for a monitor. They won't work for prints. Is there anything similar for printers (i.e. a test image that could be used to estimate a gamma of a printing system with a reasonabl...

So what's the easiest way to find out what would a gamma (or similar piece-wise transfer curve) is used in a printer profile? The reason for the question is this: I have a hard time to print shaddows properly on Durst Lambda. Even if the test prints are seen in really bright light, they seem to have...

Here is what I think, but I'm not sure. In a standard monitor/working colour profile (e.g. sRGB) there are xTRC tags that define display gamma for this profile. They don't have LUTs. Printing profile don't have xTRC tags, but typically have several LUTs for different rendering intents. The LUTs look...