Posted by Vincent Keers on 05-22-2005 10:00 PM:

Lightbulb Digi help?


Can be our computer screen be of any help?
The screen works with a different color standard but. If I resize a rug image (96pixels P/I) 10x and concentrate on the blue.....a new rug gives blue and purple pixels. An old rug gives blue and green pixels only.

So let's all blow up our rugs and look for the different results that come from new and old rugs.

Best regards,

Posted by Filiberto Boncompagni on 05-23-2005 06:32 AM:

Hi Vincent,

I always thought that our computer screen is more of an obstacle than a useful help in sharing faithful colors.
Iím open to evidence, though. Could you show some examples explaining your way of proceeding?


Posted by Richard Farber on 06-04-2005 02:32 PM:

HELP !!!!!

dear vincent, filiberto or anybody else out there

i am trying vincent's experiment with the image of the miniature velvet saf that i posted on the show and tell.

i am using finepixviewer. i got the enmage up to 500 percent. than i cropped a piece and saved it and tried blowing up a section of that to get the individual piexels. this did not work. the program refused to do any further zoom in.



Posted by Vincent Keers on 06-05-2005 10:20 PM:

Dear Richard,

Wow, what did I start?
The image shows me------your saf has a natural color madder/calcium. The synthetic color shows green and blue at a higher level (on a scale from dark to full color) but a lower pixel count.
The natural color madder/calcium shows the same levels in red, green and blue and the same pixel count.
Why madder? It matched perfectly (on the screen)
Cochineal didn't match.

Now, I'm trying to figure out a way to show this in real time. Maybe I should make pictures from the screen?

Best regards,