This image was created by first converting to greyscale, thus erasing all color metadata, and then to the duotone option in photoshop. From here, the intensity of the light is filtered only through one color, a dark forest green I chose, resulting in the image being of only one tone.
This image was manipulated through the channel mixing function in photoshop. This function changes the values associated with the colors red, green, and blue throughout the whole image.
This image was converted to greyscale meaning the RGB metadata was erased and all that remains is information on the lightness and darkness of the image.
This image was completely desaturated of all color meaning the intensity of the colors was reduced as low as possible while preserving the RGB metadata.