2. First, open the Layers panel to drag the layer to the "Create a new layer" icon, create a background copy
3, in order to achieve more accurate results, we want to pull out the beauty from the figure, you can use lasso tools, channels, layers, etc. you are more familiar with the method to pull the map, this fruit we use the channel method to dig. First switch to the channel interface, the comparison found that the blue channel is stronger, the blue channel to "Create a new channel" to create a blue copy channel.