In-depth analysis of high and low frequency microdermabrasion. Use examples to explain the principles, pros and cons of frequent high and low microdermabrasion
Practice materials: http://www.16xx8.com/photoshop/sucai/2016/h167359.html
Portraiture2 Chinese version download: http://www.16xx8.com/photoshop/sucai/2015/z227224.html
PSD file: http://pan.baidu.com/s/1bp4Z4z9 Password: mr34
High and low frequency principles:
The principle of high and low frequency microdermabrasion in photoshop is to divide the image information into two parts, record the color and light and shadow in the low frequency, and save the textural details in the high frequency; if we extract these two frequencies into two layers respectively, we can Adjust them individually without interfering with each other. The low-frequency layer is used to control the color, light and shadow of the image, and the adjustment will not affect the details of the image. The high frequency layer is used to control details without changing the color.
Advantages:
It takes a short time. After mastering the high and low frequency microdermabrasion method, you can quickly microdermabrasion the image while retaining the skin texture. It can also be used for the later transition of neutral gray commercial microdermabrasion, and the effect is very obvious.
Disadvantages:
Simply using high and low frequencies is not as delicate as neutral gray microdermabrasion. If you want to achieve the desired effect, you must also master neutral gray to process low-frequency light and shadow.
(Note: There is absolutely no shortcut to making an image look great instantly. Even if you want to be opportunistic, it requires certain skills.)
Detailed case explanation:
Things you need to know: high contrast preservation, Gaussian blur, and applied images.
Software: PSCC2015
Main method: high and low frequency microdermabrasion
Time taken: 20 minutes
Color correction: Curves, selectable colors, color balance.
Detailed steps:
1. Open the original image in PS.
2. Press CTRL+J twice in succession to copy the image to obtain Layer 1 and Copy of Layer 1. Rename Layer 1 to: Low Frequency Layer, and Copy of Layer 1 to: High Frequency Layer.
3. Select the low-frequency layer, execute: Filter – Blur – Gaussian Blur, and set the blur radius value here to 6 pixels. Select the high-frequency layer, execute: Image – Apply Image, open the Apply Image dialog box, set as follows:
(The reason for applying the blending mode of the image and selecting subtraction is to subtract the information of the low-frequency layer. The reason for filling the difference value with 128 is to fill the information other than the layer detail texture with a gray layer of 128, so that we can use linear light later. The layer blending mode filters out the gray information.)
Get high-frequency and low-frequency layers respectively.
4. Set the blending mode of the high-frequency layer to: linear light. The main purpose of the operation is to shield the gray.
5. Select the high-frequency layer and use the repair brush tool to remove obvious pimples and acne on the face. Try not to use stamp tools when cleaning blemishes to avoid losing skin details and texture.
6. Close the high-frequency layer, select the low-frequency layer and use the repair tool to select the obvious color block on the face (hold down the SHIFT+T key to select the area), then press the SHIFT+F6 key to feather 20 pixels, and then perform a Gaussian blur. Value 20. Then use the Healing Brush Tool to further remove some spots (operate on the low-frequency layer, which will not affect the detailed texture of the skin, and then light up the high-frequency layer).
After steps 5 and 6, the skin should be basically modified. We blur the low-frequency layer in order to spread out some obvious color blocks evenly. Use the high-frequency layer to adjust details. You can use stamps and repair tools. Since there is no influence of color, the operation here only changes the details and does not change the color. Very convenient.
Color correction
To adjust the color of the low-frequency layer, the method and adjustment parameters are as follows:
(The color adjustment of the low-frequency layer will not affect the texture of the skin.Reasonable, because the detailed texture of the skin is saved in the high-frequency layer – the top layer. )
The values for each adjustment layer are as follows:
(If you are new to color grading, I suggest you spend some time to study it. Color grading is really important. This parameter may only be applicable to this safety. It will not work if you change another image, so what you remember is not the parameter, but the method)
If you feel that the light and shadow on the neck and collarbone are a bit messy, you can simply use hyperbola or neutral gray to overdo it, which I won’t introduce here.
If you feel that it is not enough to achieve this, you can use Portraiture to overdo it a little. The value must not be too large, and finally use High Contrast Preservation to sharpen it.
Let’s set up a black and white observation group to see how the relationship between light and shadow and the texture of the skin are good.
Final effect:
In-depth analysis of high and low frequency microdermabrasion. Use examples to explain the principles, pros and cons of frequent high and low microdermabrasion
Practice materials: http://www.16xx8.com/photoshop/sucai/2016/h167359.html
Portraiture2 Chinese version download: http://www.16xx8.com/photoshop/sucai/2015/z227224.html
PSD file: http://pan.baidu.com/s/1bp4Z4z9 Password: mr34
High and low frequency principles:
The principle of high and low frequency microdermabrasion in photoshop is to divide the image information into two parts, record the color and light and shadow in the low frequency, and save the textural details in the high frequency; if we extract these two frequencies into two layers respectively, we can Adjust them individually without interfering with each other. The low-frequency layer is used to control the color, light and shadow of the image, and the adjustment will not affect the details of the image. The high frequency layer is used to control details without changing the color.
Advantages:
It takes a short time. After mastering the high and low frequency microdermabrasion method, you can quickly microdermabrasion the image while retaining the skin texture. It can also be used for the later transition of neutral gray commercial microdermabrasion, and the effect is very obvious.
Disadvantages:
Simply using high and low frequencies is not as delicate as neutral gray microdermabrasion. If you want to achieve the desired effect, you must also master neutral gray to process low-frequency light and shadow.
(Note: There is absolutely no shortcut to making an image look great instantly. Even if you want to be opportunistic, it requires certain skills.)
Detailed case explanation:
Things you need to know: high contrast preservation, Gaussian blur, and applied images.
Software: PSCC2015
Main method: high and low frequency microdermabrasion
Time taken: 20 minutes
Color correction: Curves, selectable colors, color balance.
Detailed steps:
1. Open the original image in PS.
2. Press CTRL+J twice in succession to copy the image to obtain Layer 1 and Copy of Layer 1. Rename Layer 1 to: Low Frequency Layer, and Copy of Layer 1 to: High Frequency Layer.
3. Select the low-frequency layer, execute: Filter – Blur – Gaussian Blur, and set the blur radius value here to 6 pixels. Select the high-frequency layer, execute: Image – Apply Image, open the Apply Image dialog box, set as follows:
(The reason for applying the blending mode of the image and selecting subtraction is to subtract the information of the low-frequency layer. The reason for filling the difference value with 128 is to fill the information other than the layer detail texture with a gray layer of 128, so that we can use linear light later. The layer blending mode filters out the gray information.)
Get high-frequency and low-frequency layers respectively.
4. Mix the high frequency layerThe mode is set to: linear light, and the purpose of the operation is mainly to shield gray.
5. Select the high-frequency layer and use the repair brush tool to remove obvious pimples and acne on the face. Try not to use stamp tools when cleaning blemishes to avoid losing skin details and texture.
6. Close the high-frequency layer, select the low-frequency layer and use the repair tool to select the obvious color block on the face (hold down the SHIFT+T key to select the area), then press the SHIFT+F6 key to feather 20 pixels, and then perform a Gaussian blur. Value 20. Then use the Healing Brush Tool to further remove some spots (operate on the low-frequency layer, which will not affect the detailed texture of the skin, and then light up the high-frequency layer).
After steps 5 and 6, the skin should be basically modified. We blur the low-frequency layer in order to spread out some obvious color blocks evenly. Use the high-frequency layer to adjust details. You can use stamps and repair tools. Since there is no influence of color, the operation here only changes the details and does not change the color. Very convenient.
Color correction
To adjust the color of the low-frequency layer, the method and adjustment parameters are as follows:
(Adjusting color to the low-frequency layer will not affect the texture of the skin, because the detailed texture of the skin is saved in the high-frequency layer – the top layer.)
The values for each adjustment layer are as follows:
(If you are new to color grading, I suggest you spend some time to study it. Color grading is really important. This parameter may only be applicable to this safety. It will not work if you change another image, so what you remember is not the parameter, but the method)
If you feel that the light and shadow on the neck and collarbone are a bit messy, you can simply use hyperbola or neutral gray to overdo it, which I won’t introduce here.
If you feel that it is not enough to achieve this, you can use Portraiture to overdo it a little. The value must not be too large, and finally use High Contrast Preservation to sharpen it.
Let’s set up a black and white observation group to see how the relationship between light and shadow and the texture of the skin are good.
Final effect:
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