Evolution of human colour vision as 'visual purple' receptor proteins, are encoded by Rh1, OPN2 and RHO genes. They are characterized by extreme sensitivity to light and enable monochromatic human vision in low light or dim conditions. They are broken down into retinal and opsin when exposed to these conditions. Humans have 3 types of photopsin proteins found in the cone cells. Long Wavelength Sensitive Opsin (Red cone opsin) – Encoded by the OPN1LW gene with a λmax of 560 that is found in the yellow-green electromagnetic spectrum despite its name. Its sensitivity to the colour red is still known to be higher than the
Colour co-site sampling moves the sensor by precisely the distance of one pixel and delivers the complete colour information for each detail and with the same sharpness in all three colour channels. Microscanning is essential for the method. 4 (2×2), 16 (4×4) or 36 (6×6) shots can be used for improved colour reproduction. With standard digital cameras, colour images are acquired with only one sensor (see CCD and CMOS sensor). Each pixel of the sensor is sensitive to just one of the three basic colours. For each single pixel on the CCD only one third of the required information is provided and two