Histogram

The histogram is a visual representation of all the color values contained in the image as they are distributed over the range of pixel values (0-255). The color values depend on the bit depth (255 is the highest value for 8-bit).

You can view histograms for the red, green, or blue channels, or you can view the histogram for the entire image (RGB).

Note: If the vertical lines on the histogram are too small to be viewed, use the Zoom field to increase the size of the entire chart.