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RGB
The RGB histogram is a graph that represents the overall brightness of the entire image.
In any digital image, each individual color is made by combining red, green and blue lights with
each light represented by its brightness level ranging from 0 to 255. Therefore every color
produced in this way has a specific brightness value based on mixes of red, green and blue
throughout the image and these brightness values of all the different colors in an image are
represented in a histogram which is known as the RGB histogram.
On the TLM-170V, the RGB histogram is shown with the color overlay as depicted in the diagram
below.
Color
By setting the histogram to color, you will see one red histogram, one green histogram and one
blue histogram. Each color histogram is basically a representation of how that color's intensity is
distributed throughout an image, allowing you to evaluate the brightness and exposure of that
individual color channel. See the diagram below for an example of the color histogram.
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