Pink isnt that far from blue in color space.
Heres a quick way to re-create the effect yourself btw.
In the name of the image on the raw images directory
It shows what filter the image was taken with (yes those black and white ones).
For example 2P126644567ESF0200P2095L2
M1.JPG was taken with the L2 filter, which we know is at 750nm.
All the raw images seem to follow this format. A way to re-create the effect seen by shifting the redpoint. (Thats all thats been done, it actually
makes the surface seem less
red). Is this.
Photoshop-only explanation here.
Download these 2 sets of 3 images.
Now, In the first series the Red component is from filter L4, (600nm) and in the second the filter is L2, (750nm). The green and blue filters are the
same for both at L5 (530nm), and L6 (480nm) respectively.
To combine these, we will start with the first series. Open the L4 filtered image in photoshop first. This will be the background
Then open the
L5 and copy/paste as a layer over the L4 (layer 1
), then copy/paste the L6 image as a layer over both (layer 2
). Now all you have to do
is rightclick on the L6 layer, go to blending options, advanced blending, and make sure only the blue
channel is selected (deselect the other
2) this makes this layer the blue channel. Now, do the same for layer 1
(L5) but select the green
channel. You don't have to do the
same for the last channel as if you havent changed the opacity. Red is the only thing that can show through from that layer.
You should now have a regular, true-colour image of the sundial. As RGB are typically those values.
Now, if we repeat the process with the second series of images. Using the L2 layer as the background (and therefore red channel). We get a completely
different looking sundial.
Try it for yourself.
Here are the two processed images:
All this from a little shift of the redpoint by 150nm. You'll also notice it doesn't really change the look of much apart from the extreme colours.
I will make a diagram to show how the color-space is transposed.