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Histogram parameters < Main Menu

Enables and customizes the Live Histogram feature.

Histogram Anatomy

The horizontal component of a histogram runs from 0 to 255. What is important to understand is the “0” and “255” are not values…they are labels representing a color value. When you see a line in the middle of the histogram (label “127”) it’s saying “this is how many ‘127’s there are in the image.”

The vertical component of a histogram is the count of pixels at a given level. The bottom is zero and the top represents the largest count of values for a label. So if you have a 7MP image and every color is “127”, then the top of the histogram represents 7 million pixels.

RGB Histogram

RGB histograms simply count pixels at each level. The RGB histogram of an image of three boxes (red, green, and blue) where every color has a value of 127 would be a single line in the middle of the histogram (at label “127”.)

Luminance (Y) Histogram

Luminance histograms attempt to factor in the perceived brightness of colors. A luminance histogram of an image of three boxes (red, green, and blue) where every color has a value of 127 will show three lines at labels “38” (red- x 0.3), “75” (green x 0.59), and “14” (blue x .11).

Show live histogram [Donʼt, Always, Shoot] < Histogram parameters < Main Menu

•Donʼt – Don’t show histogram on LCD.
•Always – Always show the histogram on the LCD.
•Shoot – Only show the histogram when shutter is half-pressed.

Histogram layout [RGB, Y, RGB Y, R G B, RGB all, Y all, Blend, Blend Y]

•RGB – Displays the RGB histogram only.

•Y – Displays the luminance histogram only.

•RGB Y – Displays RGB above luminance.

•R G B – Displays three histograms, one for each color.

•RGB all – Displays all 5 variations of histograms with RGB on top.

•Y all – Displays all 5 variations of histograms with luminance on top.

•Blend – Combines the three histogram of the R G B display into one.

•Blend Y – Same as Blend but with the addition of luminance below.