The RGB standard has been used for decades in computing and photography. And now you can see all its colors at once.
From a very young age, in school, they teach us that all the colors that our eyes perceive are formed from three primary colors: red, green and blue. In English, Red, Glaugh and Blue, that is RGB.
By slightly varying the proportion of red, green or blue, millions of different colors can be obtained.
In computing and image RGB standard uses 16,777,216 colors. And here you can see them all together in this image:
Perhaps it seems to you that the 16.8 million colors They can show the screens of the monitors and televisions, but they are all. You can count them, if you dare … In this enlarged image you can see it more clearly.
With these colors all the images that we see on our screens are formed.
If you want to perceive it differently, in this other image you have the same 16,777,216 colors, but randomly placed.
Today modern displays have image formats with extended colors and techniques like HDR and Dolby Vision to display even more colors, but the RGB standard is still the most widely used.
The image has been created by photographer David Naylor, and on his blog explains how he created it.
Is composed of 256 squares containing 256 x 256 pixels. Counting, 256 x 256 = 65,536 x 256 squares = 16,777,216 pixels.
To create them, explain that “I used Photoshop. I started by making one of the squares and then I copied it 256 times, adding a level of green for each square, using a mask“.
There are other curiosities. The image with all uncompressed RGB colors and with 24-bit color it was 50 MB, but the PNG format compresses them to just 58 KB. If it is later compressed with ZIP, it is reduced to only … 705 bytes! That’s 71,436 times less than the original uncompressed image.
A very curious image that helps us understand a little better how the colors used in computer and photographic screens are formed.