spacediver
2[H]4U
- Joined
- Mar 14, 2013
- Messages
- 2,715
just realized something - you don't have to do this psychophysically. You can use the colorimeter to integrate the gratings.
Protocol would look something like this:
First, generate a grating, consisting of alternating darker and lighter stripes. Call the RGB level of the dark stripe "Low value", and the level of the lighter stripe "High value". Make sure your colorimeter can reliably read the luminance of this low value.
Measure the luminance of the Low value and High value. Take the average of these numbers and write it down.
Without moving colorimeter from its position on the screen, display the grating, measure the luminance of the grating (which should integrate the luminance info across the grating stripes). Compare the reading to that of the number you wrote down.
If it's a perfect match, then we're in business. Will report back.
Protocol would look something like this:
First, generate a grating, consisting of alternating darker and lighter stripes. Call the RGB level of the dark stripe "Low value", and the level of the lighter stripe "High value". Make sure your colorimeter can reliably read the luminance of this low value.
Measure the luminance of the Low value and High value. Take the average of these numbers and write it down.
Without moving colorimeter from its position on the screen, display the grating, measure the luminance of the grating (which should integrate the luminance info across the grating stripes). Compare the reading to that of the number you wrote down.
If it's a perfect match, then we're in business. Will report back.