I. Introduction
Although color photography is universally used by the public, black and white photography has not been eliminated because black and white photography still has its unique charm! The tone, level, and taste of the taste of black and white photos are colorful. The photo cannot be replaced, especially when doing humanities, news, etc., black and white photography can bring the readers to the readers to shock and deep things.
Below is a set of works filmed by Black and White Photography Master Asel Adams, I believe that most readers will be deeply impressed by the charm of black and white photography through masters!
Although there is only three colors of black and white photos, it is necessary to tell the hue, hierarchical, contrast, etc. In the past, it is not an easy thing to take a black and white photo. It is often for control or To achieve a certain demand, you need to add a shock, medium gray and color filter, etc., in addition to this, you need to get a satisfactory photo on the post-printing. Complexity in traditional black and white photography may make many amateur enthusiasts, especially beginners, and they are desirable. Fortunately, it is now a digital era. Today, in today's popularity, we can use the superiority of digital photos to achieve excellent black and white photos through the later computer processing.
Some digital cameras also have black and white shooting modes, but the photos taken in black and white mode in digital cameras are often less common, imaging is soft, lack of level, lose black and white photography, so many people don't care about "digital black and white" Red crumbs. Therefore, some digital cameras do not have black and white shooting modes, but this is not tight, we can convert "digital black and white" or color photo into a traditional black and white photo through the later processing.
Let's first introduce several different ways to process color photos into black and white photos through Photoshop, which is a bit bad, and there is a different effect for different photos. Let's take a look. Specific method.
Second. Convert color pictures into black and white
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This is one of the simple and easy ways to convert color pictures into black and white pictures. Just select the adjustment menu under the image menu, then pull down the submenu and then select the grayscale item, the method of the specific operation is as shown below. Indicated.
This method is very simple, but you can't adjust any parameters during the conversion process, and there is a big deviation to some colors and the real black and white film, it is easier to make people feel a few feelings. .
Original image
As as an example above, we will convert it into a black and white photo. The effect is similar to the grayscale, and the effect is not very ideal, and the effect of traditional black and white film is obvious.
Figure one
2. Gray mode
This is also a relatively simple method, just select the mode menu in the image menu, and then select the grayscale mode.
The following is the effect of the grayscale mode conversion, comparison Figure 1. The effect is better, the contrast of the image is much smaller, the grayscale and the level are also more rich, for some color or bright contrast contrast of strong photos. The grayscale mode can get a good effect, and the effect is satisfactory after applying the grayscale mode.
Figure II
3. Conversion of LAB mode
Through the LAB mode conversion, it is more likely to obtain a method of high and anti-white photos. The specific operation is shown in the figure below, and the image will be converted to the LAB mode, and then drag the A channel to the upper right corner in the channel panel. The channel can be deleted, if you want to save the picture as JPG format, you need to go to the grayscale pattern in the Mode menu to save the image format to the JPG format.
The effect of the LAB mode conversion can be viewed from the figure below. The effect of this method is very good, and the contrast is better than the above method, and the overall is very bright, the effect is good.
Figure three
4. Take one of the RGB channels
This method can often get some surprising effects, but there is also a certain disadvantage, that is, because only one of the colors are retained, there will be a lot of detail to the image. The specific method is shown in the figure, first, the settings of some parameters are first, set to enter the Edit menu to select the preset submenu and select the display and cursor item. After selecting this item, the pop-up menu is as follows, here we need to route the channel with the primary color display item, then determine.
Then go back to the channel panel to take each channel and observe the changes in the image, and finally take out what you think is the best channel and make a new file. This step is just a simple copy and paste, it is very simple. Let's! The following is a black and white picture of the different effects made of red, green, and blue three colors to the original picture.
Red: This is the effect of selecting the red channel, the contrast is relatively high, the hue is relatively bright, suitable for women's portraits.
Green: This is the effect of choosing a green channel. The contrast is small than the red channel, but it is much higher than the blue channel, and the effect is more moderate.
Blue: This is the effect of the blue channel, the lowest contrast, but there is a strange effect, which may prefer this effect for some people. This more deep effect is believed in men. The black and white photo will be more suitable.
5. Use channel mixing
This should be the best way to make color pictures into black and white pictures, because it allows users to have complete control over the picture, and different parameters can be used according to different conditions. The specific method is: first observe the effect of each channel in the channel panel, remember the best, so that you can adjust the details of each channel, then click on the menu to select as shown below.
Select the adjustment menu under the image menu and then select one of the channel mixer. The resulting popup submenu is as follows, select the monochrome item in the lower left corner in the dialog box. I can see the original map is black and white, and then adjust the values of each channel according to my own feel, until the best effect appears.
By making black and white pictures by this method, you can control the adjustment of the grayscale, as long as there is enough tolerance and care, slowly observe and adjust it. You can make a good black and white photo!
III. Particle treatment
Above we have explained how to convert colorful digital photos into black and white photos, but in addition to the traditional black and white photo play, except for grayscale, hierarchy and contrast, it also focuses on granular feelings, often high resistance and coarse particles. It is a lot of people like it. Control of particle sensing in conventional techniques is generally on the selection of film and the development time and development of the developer temperature during film flushing, this is, as the premise said, it is a more complex process, and in digital photos Good granular feelings are light and easy to mention, let's introduce the production of particle feelings.
First, the picture will be black and white.
Here, the fourth method treated above is applied, and the effect is as follows.
1. Add a variety
It is necessary to add a particle feeling in Photoshop. There are two ways to add splices and add texture, respectively, and there are many Photoshop plug-in filters to be implemented. It is mainly explained to add a variegated and add texture. . These two methods are also very simple. They are one of the default filters of Photoshop. After selecting the addition of a variege, the pop-up menu is as follows, and the degree of grain feels can be controlled at will, but you have to click on the monochrome first, otherwise it will There will be colors.
Select the same particle amount but select different distributions, and the Gaussian distribution of particles is strongly distributed.
Miscellaneous average distribution
Various Gaussian distribution
2. Add texture
The second method is to add textures to the photo, there are several different options in the texture filter, where part of the particle option is selected. There are more options in the menu of the particle filter to choose from, and the specific can be adjusted slowly according to your own feel. The particle rate mirror is not like adding a variegation. So the added particles are colored, but this is not important, as long as the particles are added, the above-mentioned color The method is OK. After the above method, the effect is as follows, how, the effect is still true, close to the high-sensitive black and white photo long-term development effect, if the contrast is not enough, you can also make the color step, curve, brightness and contrast to the picture. The tool is detailed and more realistic.
Four. Color tone processing
Finally, in the traditional black and white, sometimes in order to get special effects, often add different colors, the brown nostalgic feeling is one of the most common effects, and a similar effect will be obtained in Photoshop. It's easier, the method is also a lot, the simplest way to select the change in the image adjustment menu, where you can get a variety of different colors, but also you can Perform a fine adjustment, easy to get a good effect!
Below is a method of applying the above color change and the photos obtained after contrast, how, brown hue plus rough particle feelings, there is a traditional black and white film taste!
Source: Pacific Computer Network
