Before we start fixing brightness, exposure or even contrast for our images, we need to really understand what is exposure. And here's For example, we have an image with three different exposures, we have standard exposure. And if you have a DSLR camera can see that exposure setting in your camera. If you have the right exposure settings for your camera, you will be having settings like that. Or if you have a lower exposure settings you will be having a dim image like that one on the left and a higher exposure setting will be looking like that one. All right.
Here's also another example for different exposure settings. Here we have over exposure settings. And we have correct exposure settings in the center and we have under exposure settings on the left. And there are three major elements for affecting exposure or how exposure works. If you're shooting your images using a professional camera light will be passing through your camera's lens that will be affected by a partial which is also controlling your depth of field and your shutter speed as well. And the third factor will be your camera sensor, which is controlled by ISO within your camera, the lower your eyes, the lower sensitivity will be for your sensor.
And in order to be able to fix your images within Adobe Photoshop or even take great images with your camera, you need to be able to read your images histogram which is really easy and we'll be seeing that within our example. So here within that histogram, we have luminance value, again as pixel value. And here we have pure black values or black points. And here on the very right we have beautiful white values. So even to make it simpler for you guys here we have made shadows or mid tones. And we have white values and black values.
Okay, so white on white and black on left. And here we have an example for underexposed image. We have How to Add values. However, we have clipped white area we call it clip the white area we don't have any white values within our image. And this is an example for overexposed image we have high values for our whites. And we don't have any values for black in here.
And this one will be resembling a high contrast image was very high values and white and black. And we have relatively low values on mid tones. So anyway, let's dive into an example and you will be getting that one very easily guys