Photoshop photo exposure repair tutorial-PS tutorial

The photos taken by professional photographers in books and magazines look great, but sometimes these images look very different from those taken at home on Christmas Day or on a trip to Disneyland. If you take a perfect image of Uncle Albert when the flash is not activated, or when a child is playing with Mickey Mouse at dusk, he needs to take a very good book and a picture taken by a professional photographer in a magazine. it looks great, but sometimes these images look very different from those taken at home on Christmas Day or on a trip to Disneyland.
Snapshot Photography if you take a perfect photo of Uncle Albert when the flash is not activated, or if your child needs to take a very good photo when playing with Mickey Mouse at dusk) in essence, there are many problems. The lighting conditions in captured scenes cannot meet the requirements of taking high-quality photos.
Only so much can be done using Photoshop and Camera Raw dialogs. Sometimes satisfactory output cannot be obtained by optimizing the image. But capturing photographers can save images that have a lot of frequently asked questions and proudly present them to their families.
We will show you some of the worst cases and show you how powerful Photoshop controls are in color correction and tone editing. If you find that a photo on the memory card encounters a flash issue during shooting or shooting under uncontrolled lighting conditions, refer to this chapter and compare the image. If your image is not as bad as the examples listed here, you will have the opportunity to know where to correct the image before opening the file and viewing the histogram.

Fixed the vulnerability exposure and could not be completely repaired.
Solve the problem of flashlight exposure:
Sometimes a photo may encounter a situation where the flash is not activated or the flash is insufficient to properly expose the scene. The result is partial or completely exposed images.
Be careful with this type of image. do not make the color separation (posterizing) or show excessive colors when performing brightness correction as much as possible. Drag the "color level" slider to the head to brighten the image, but the gradient of many tones will be lost, resulting in severe color separation or miscellaneous. You should increase the brightness and contrast, and do not damage the tone curve. Obviously, there are some limitations and you may not be able to save some images.
There are two situations when taking a photo that requires flashing. One is that the flashlight is not activated; or if the flashlight is activated, but the shooting object is out of scope, it seems that the flashlight is not activated. This type of photo is usually beyond the scope of any restoration means, at least unable to obtain high-quality images.
When you use the flashlight for capturing, you will find another situation, that is, although the flash is triggered, but the flash is insufficient, there is not enough light to generate an image with a good color range. At first glance, it seems that the image does not look anything. However, you will find that there is enough data in the photo to process it and get a good image.
Process photos that cannot be completely repaired:
The example is an underexposed JPEG file shot with a low ISO setting. This file has a lot of colors in most dark areas, capturing the color of the flash, and the lighting is very poor, so the image cannot be completely repaired.

Fixed the vulnerability exposure and could not be completely repaired.
Open the level dialog box and view the histogram. -2 shows the histogram of the image in-1. It can be seen that there is no data in the range of high light and intermediate adjustment. Data is not displayed until the color order is around 40. After checking the image and the histogram that appears, it indicates that the image cannot be completely repaired. You can adjust the tone level, but the final result shows a large number of colors, and there is a color distribution problem after you remap the tones.

To view how many colors appear after the color tone adjustment, drag the white field slider to the left until the data starts after the color level is reached. In this example (see-3), move the white field slider to level 40.


Fixed the vulnerability exposure and could not be completely repaired.
It is best to discard the photo and try again next time. But what would happen if your camera was the only camera targeted at the library shown in-4 in November 22, 1963? Assume that you were born and can pick up the camera. You took a 6-level low exposure photo, and this photo is the only photo that reveals the secrets of the modern era. It takes up to 43 years for Photoshop CS2 to repair the photo, present the photo to King Larry, and get a bonus. All you need to do is to get enough details for the photo so that you can become the winner of the next prize. We call this method "Mason PatPending Mixed Mode Image Save ).

Fixed the vulnerability exposure and could not be completely repaired.