[Radiance-general] printing floating point images

[Jack de Valpine]

One follow-up on this. Among the reasons that we were so happy with the 
Lambdas and Pegasus (and I think also Ofoto, but I have much fewer data 
points) is that we can process the images as we would for viewing 
normally on our displays and then send them to print as is (with tif 
conversion) without further mucking about.

-Jack

Carsten Bauer wrote:

> Georg Mischler wrote:
>
>> Peter Apian-Bennewitz wrote:
>>
>>
>>> Carsten Bauer wrote:
>>
>>
>>
>>>> cmyk is probably a bit out of date nowadays, it always was a rather
>>>> poor standard suitable for those big printing machines of former time.
>>>
>>>
>>
>> The pigments on a print will almost always be cymk (sometimes
>> augmented with additional colors). This has nothing to do with
>> "big machines of former time", but simply with the laws of
>> physics.
>>
>
> hmm, if it were for the physics alone, we wouldn't need the k, so 
> we'll have to take chemistry and engineering (and of course 
> physiology) into account, also. In most high-quality printing jobs 
> (e.g. art catalogues) additional pigments are used to overcome the 
> cmyk (saturation)-limitations.
>
> But instead of quarreling about this I simply wanted to say that the 
> new RGB laser printers usually do a very good job with their automatic 
> operation, at least for images without strong color bias.
> I admit that I haven't bothered so far about what's going on inside 
> the machine, they're very expensive, so I believe you that some 
> complicated stuff is working inside.)
>
> I also think it's out of question that the contrast range and color 
> saturation of machine made prints cannot compare to those of 
> transparencies or oil paintings. But the color resolution of those 
> laser prints is fairly high so you can get a lot of information from 
> the image onto the print also. I noticed this once in a negative 
> sense, when I hoped that some faint splotches which were hardly 
> visible on the screen would finally disappear on the print due to 
> limited color space resolution - they didn't, and remained nicely 
> visible.. :-(
>
> ahmm, and yes, Rob, I meant of course pcond..
>
> -cb
>