Hence analysing your picture for highlights and shadows will give you a fair idea of whether to use brightness or exposure while adjusting the light. And if you want to pull back the highlights, then use exposure and not brightness since it will darken the whole image. You should use brightness in this case so the whole picture is affected. Brightness can be referred to as the ability to detect differences in Luminance. The difference between brightness and exposure is that when you have a picture which has a lot of highlights and you want to brighten the image, you do not use exposure, since it specially affects highlights. Effect of increasing and decreasing the exposure Difference between the two In layman language, it will act as if increasing the amount of light in the picture, without much affecting the darker areas in the picture. Unlike brightness, exposure is highly biased towards the highlights in the picture. When more than the required light enters the camera, the picture is said to be over-exposed.Įxposure can be adjusted during the processing stage. When less than the required light enters the camera, the picture is said to be under-exposed. Exposure can be controlled by changing the camera settings beforehand. In other words, how exposed is the lens to the light entering the camera. When dealing with buttons or options that increase and decrease the brightness, the sun rays (lines) may be bigger to represent increasing and smaller to represent decreasing the brightness. When clicking a picture, exposure is the amount of light that enters the lens of the camera. The brightness icon is often represented as a sun (circle with several lines around the circle) or a light bulb. It is an in-camera property of a picture. Effect of increasing and decreasing the brightnessĮxposure is something entirely different. Changing the brightness can help improve the visibility of the darker parts of the image. Similarly, decreasing the brightness will make light areas darker and the dark areas darker too. Increasing it will make the dark areas lighter and light areas lighter too. Changing the brightness of a picture affects all pixels equally. It is the simplest of the tools present in photo editors for light adjustment. Correct brightness is important to easily understand the contents of the picture. So then what exactly is the difference between brightness and exposure?īrightness is simply how dark or light a picture is. While it may seem that both of them do the same work of “brightening” or “darkening” the picture, they both work on different fundamentals and if you observe closely they affect a picture in different manners. Or if a picture came out with the wrong or unwanted lighting, what do you use between brightness and exposure? While editing your pictures in a software or in a photo editor, you must have come across certain adjustments to set the correct light in your picture.
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