The case and procedure of PS document changing and white background and its thinking

There are many ways to change the PS document according to the white background, this article aims to introduce the general method. The standard of the document is not uniform, sometimes the documents need to be white, sometimes the documents need a blue background, and sometimes the documents need a red bottom. Although the digital photography, digital printing is very convenient now, but still need to spend some unnecessary time, especially when we urgently.

First look at the PS document after the white bottom before and after the preview effect, the red bottom for the blue, white bottom, even if you want any color.

Below is the PS document to change the white bottom of the detailed procedures:

1. Start Photoshop, execute "file--open", open the Red bottom card image of the material.

2. Press CTRL+J, copy the background layer, get layer 1, and rename the layer to: blue bottom. The purpose of copying a background layer is to operate on the replica layer without destroying the original image.

3. Perform "image-adjust-replace color" to open the Replace Color dialog box. Set the color tolerance to the appropriate size, then use the first Eyedropper sampling tool to click in the red background of the image, if the extra color is selected, use the third straw to reduce the color tool in excess of the position click, if some colors are not selected, use the second straw to add color tool in the color where you need to click, Choose to adjust its hue and saturation below, double-click the color block next to Hue, select the color you want, such as white (RGB 255,255,255), set "lightness" to 100, and click OK when you are finished setting.

4. Click the third button under the Layers panel to add a layer mask. Set the foreground color to black, and use the brush tool to smear the portrait's clothes and face.

Purpose of this step: because the replacement color command replaces all similar colors of the image with the specified color, and we just want to replace the background color with the color we need, we use the Mask feature to cover the part of the character and revert to the original color.

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• PS Getting Started Tutorial