A refers to an image that consists of shades of gray, ranging from pure black to pure white, with various levels of in between. It is a representation of the original image, devoid of any color information. The intensity of each pixel in a grayscale image determines its brightness or darkness. , which is the perceived brightness of an object, plays a crucial role in grayscale images as it directly affects the pixel intensity.
To analyze the distribution of intensities in a grayscale image, a can be generated. The histogram visually displays the frequency of each intensity level present in the image. By examining the histogram, one can gain insights into the tonal range of the image and determine if it is properly exposed or suffers from overexposure or underexposure. This information can guide photographers and image editors in making adjustments to enhance the overall quality and appearance of the image.
