A histogram is a graphical representation of the tonal distribution in an image, where the horizontal axis displays brightness levels from pure black on the left to pure white on the right, and the vertical axis indicates the number of pixels at each specific brightness level. A significant spike clustered on the far right edge of the iPhone's histogram specifically indicates that the image is overexposed. Overexposure occurs when too much light has reached the camera's sensor, resulting in an image that is excessively bright. This spike on ....
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