Basic Image Processing Using Python Tutorial 4 ( Changing Contrast and Brightness of an image)

To change contrast and brightness in an image, we should have an
understanding of what these two terms mean:
• Contrast: Contrast is the difference between maximum
and minimum pixel intensity.
• Brightness: Brightness refers to the lightness or
darkness of an image. To make an image brighter, we
add a constant number to all the pixels present in it.
Let’s look at the code and the output, to see the difference between
contrast and brightness.