To the users of Photoshop software to detailed analysis to share a clear picture of the bright city scene photo of the production of a tutorial.
Before you fix the picture, you need to have a clear idea, and it's important to have four points to make the photo transparent:
First, the accurate exposure
There is light only color, too much exposure is black, too exposed is pure white, the screen too dark or too bright will affect the accuracy of color, so the accurate exposure is the basis of color, high light do not overflow, the dark part do not die black. Histogram is a good reference, the following simple to explain the histogram: the histogram of horizontal coordinates to represent brightness, vertical representation of the number of pixels. Through the histogram can be read in detail in a certain brightness, the color of the number of pixels.
Figure I: Under exposure. The crest accumulates on the left, and the black overflows. Figure II: normal exposure. The crest is in the middle, the whole wave shape is middle height, both sides are low, and does not overflow on both sides. Figure three: Over exposure. The crest accumulates on the right, and the high light overflows.
Second, the appropriate degree of contrast
Do not think that "transparent" is the strong pull contrast, too high contrast will make the color accumulation, too low contrast will make the image gray to spend large. Therefore, the contrast is good, the specific how to calculate suitable, this has no fixed value, each picture of the situation is different, according to the specific circumstances.
This is a hue ring, for you to introduce two concepts: contrast: hue ring on the 180 degree of two areas of color, such as: Blue and yellow, red and green. Adjacent color: Adjacent colors on the hue ring, for example: blue and magenta, yellow and red. To make a color more transparent, reduce its contrast color and increase its adjacent color. Use blue For example, want blue more clean transparent, play blue enemy, that is to reduce the yellow in blue, or find blue friends, that is, add green or product.
Four, dark-tuned high saturation
Dark can not be dead black, while the appropriate increase in the dark part of the saturation, so that it does not look gray.
Summary: The key factors that make the screen transparent: 1. Accurate exposure 2. Appropriate contrast 3. Clean color 4. Dark-tuned high saturation. The time to repair the map according to the above 4.11 corresponding to check. Please keep in mind that the above principle is not repeated in detail in the following examples.
Below, I follow the above four points to adjust a picture, help everybody understand. Let's look at a set of contrasting graphs.
I. Adjustment of exposure and contrast
Because it is convenient to adjust the exposure and contrast operation in LR, the brightness and contrast are adjusted together. From the histogram to see that the original image is too dark, first in the LR adjustment (as shown below) to adjust the attention of the dark can not be too dark, high light can not overflow.
A lot better, but still not the most accurate exposure, but because there are other operations will affect the brightness, so the current transfer to here is OK. Take a look at the comparison chart after the first step of the adjustment.
Second, make the color more clean
We import PS from LR, adjust color here mainly uses the optional color function and the hue saturation function. As a result of urban lighting, the overall image of red, so that the first rule out the effect of red on the overall color, reduce the red saturation, improve the red brightness.
We see that the car rails as a foreground and guide line, so yellow to be clean, the picture is mainly blue, so the blue color of the clean transparent is also necessary. In the optional color function, according to the above mentioned in the Hue ring color principle adjustment. We first adjust the overall, and then the local more detailed adjustment. The overall adjustment is as follows: adjust blue and yellow in the optional color
The following local adjustment: At this time there is an obvious problem (pictured below), the sky part of the color is uneven, the upper part of the lower half partial blue partial gray. Then you need to combine the mask to color the sky evenly.
The steps are as follows: Continue using the optional Color tool, adjust cyan and blue
Add a mask, select a brush, respectively, wipe out the need to adjust the place, the black part of the image below is my brush, the white part is reserved.
The sky color adjusts well, as follows: The left figure, adjusts the sky front, the right figure, adjusts the sky after.
Adjust the color of the car tracks below, the axle yellow saturation is high, and darker, I use hue saturation to adjust, reduce saturation, increase the degree of Ming.
Here, "pull out the clean color" step is over, let us look at the contrast before and after the picture, is not clean a lot?
Third, dark-tuned high saturation
In this picture, we need to low in the foreground of the building "darkened high saturation" adjustment, because the future of the house is not good-looking, nor is this picture want to highlight the content, so they are properly pressed dark, at the same time can not send ash, otherwise affect the overall picture of the permeability effect. The easiest way to do this is to adjust in "optional colors" and select "neutral" and "black" in "optional colors" to pull the "black" in both to the right (pictured below)
At this time found that the overall darkness of the picture, and bright and darkened contrast obvious (the following figure)
Below, we add masks with brushes to erase parts that don't need to be adjusted (middle towers, rails and skies), leaving the house with a prospect of dimming.
Take a look at the contrast chart, the foreground of the house is dark down. Left: adjust before; right: after adjustment.
After the adjustment, the overall picture has been many, but there are still some problems, such as: brightness is still not enough, some overflow of high light, clarity is not enough. Next, the final adjustment. The easiest thing to do is to adjust in the camera raw filter.
Now, this picture is fixed, let's take a look at the contrast, left: adjust before; right: after adjustment.
Well, the above information is small knitting to you photoshop This software users brought to the detailed picture of the bright city nightscape photos of the production of a tutorial to share the whole content, you understand the users here, Xiao-bian believe that you are now very clear method of making it, Now, everyone, just follow the tutorials and try your best.
