How to change the background of photos with ps

1. Import pictures.

Copy the layer, and the shortcut key is CTRL+J.

2. Select the channel.

Enter the channel panel and select the channel suitable for the picture, that is, if the contrast between black and white is slightly obvious, which channel will we choose. I choose the blue channel here.

3. Adjust the channel.

After selecting the channel, we copy a layer of this channel, and then perform image-adjustment-color scale. The shortcut key of color scale is ctrl+l, and the black and white gray blocks are adjusted, but the contrast between black and white is more obvious.

4. Adjust the image.

Our character here is black, so we use the black brush tool to erase all the necessary subjects, and the white brush erases the black in the background and turns it into white, which is convenient for us to establish the selection.

5. Establish a constituency.

Hold down the ctrl key and click the thumbnail with the left mouse button, and a choice will appear. If the selection that appears is not what you want, ctrl+shift+i will reverse the selection. If the selection is what you want, the reverse selection step can be ignored.

6. Create a selection layer.

Let's go back to the RGB channel and then to the Layers panel. Ctrl+j creates a selection layer. In this way, a complete image is deduced.

Second, the ring background

1. After we dig out the image, we only need to use the moving tool to move its layer to the required background, and ctrl+t adjusts the position and size direction.

2. A complete rendering is presented to everyone.

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