Separating the image from the background is one of the most troublesome steps for novice Photoshop users. However, there are several ways to make an object stand out from the background, one of which is to create a selection based on one of the image's color channels.
It is necessary
- - Photoshop program;
- - image.
Instructions
Step 1
Load the picture from which you are going to cut the object into a graphics editor and make the layer on which the image is located available for editing. To this end, use the Layer from Background option from the context menu that appears after clicking on a layer.
Step 2
If you are going to transfer the cut image to a new background, it will be most convenient to put this background in advance. Open the background image in Photoshop and paste it under the layer with the processed image.
Step 3
After making the active layer with the processed image, open the channels palette. It can be located next to the layers palette. If the desired palette is not visible in the Photoshop window, open the Channels palette by applying the Channels option from the Window menu. By sequentially clicking on all three channels, determine in which of them the image is most contrasting. Most often, the blue channel is used to separate the subject from the background.
Step 4
Duplicate the selected channel. To do this, use the Dublicate Channel option from the context menu or drag the channel onto the Create new channel button. Invert the image that became black and white after the operation with the channel, using the Inverse option from the Adjustments group of the Image menu.
Step 5
The part of the image that you need to get rid of the background is colored after inverting to white. Adjust the contrast of the picture so that the cropped object is completely white and the background is dark. This can be done using the Brightness / Contrast, Curves or Levels filters from the Adjustments group. You can additionally tint with white those fragments of the picture that should remain after removing the background. Select the Brush Tool for this.
Step 6
Load the selection by clicking on the inverted copy of the channel while holding down the Ctrl key. To restore the image to its original color appearance, click on the topmost RGB channel.
Step 7
Switch to the layers palette by clicking on the Layers tab and create a layer mask using the Add layer mask button. Edit the mask if needed. In order to remove the remaining fragments of the background, paint them over the mask with black color. If a part of the image that should be visible in the final image is hidden under the mask, paint the mask in this place with white.
Step 8
Use the Save As option from the File menu to save the processed image with the mask and both layers to a psd file.
