Painting by numbers
A couple of days ago I wrote a blog about how it wasn't so dark in Norway as people think it is. We get a lot of scattered light even though the sun isn't visible. If the light is scattered it should contain more blue than direct light so I sampled a photo of a bit of snow visible due to scattered light. Looking at the RGB values it did seem to have more blue than green and red. Today the sun is shining (for two hours) so I got a photo of some snow in direct light. I couldn't use the same snow as that would mean the camera was pointing at the sun so but I don't think this matters.The results are shown in the photo. Direct light has a smaller percentage of blue then scattered light. Maybe this is obvious for non colour blind people but I need the numbers to show the difference.