How to use Photoshop to whiten people's pictures with calculation

1, open the original material and press Ctrl+J to copy the background layer.

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2. execute: image >; Calculation, the parameters are set as follows (by calculating the desired choice, and then adjusting the brightness, you can.

The skin looks more transparent), observing the original picture, it is found that the middle color of the character's skin color is mostly red, so it is calculated by red channel and gray.

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3. For the Alpha 1 channel of operation processing, the highlight on the face is relatively dark, which is the desired choice.

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4. perform again: Image >；; Calculation, parameter settings are as follows. The purpose is to increase the contrast.

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5. Calculate the Alpha2 channel, hold down Ctrl and click the Alpha2 channel to load the selection, and a warning will appear: any selection with no more than 50% pixels will be determined by invisible direct points.

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6. Return to RGB channel, switch to the layer panel, create curve adjustment layer, and adjust RGB and red channels. The parameter settings are as follows.

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7. It has little influence on the background. If you feel that the background is also brighter, you can use a black brush to smear characters on the curve layer.

The part other than things.

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8. Create a new layer and press Ctrl+Alt+Shift+E to seal the layer. Adjust details such as grinding and sharpening.

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9. Create a hierarchy adjustment layer and set the parameters as shown below. Final effect

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Experience is for reference only. If you need to solve specific problems (especially in the fields of law and medicine), I suggest you consult professionals in related fields in detail.