How to use Photoshop Channel to pull a picture

Yesterday, a friend sent an e-mail to ask me how to use Photoshop Channel to pull the map, so today I take some time to write about PS channel to pull the map of the tutorial, we put the background of a photo below, this is a simple example of this.

Final effect

1, please read the following text, and then look at the tutorial! Channel Buckle principle: Channels are: Color channel, alpha channel, and spot color channel. Where the alpha channel is used to store the selection, the alpha channel is a black to white middle 8-bit grayscale that will be selected for saving. Instead, we can use the Black-and-white contrast in the alpha channel to make the selections we need. (White is the selection of the alpha channel) levels can be adjusted to adjust the image of the darkened, the middle harmonic high light intensity level, to correct the image tonal range and color balance. We can increase the black-and-white contrast of the image by color order, and use this to determine the range of selection 1. Open Channel Surface We first select a color pair in the red, green, and blue three channels to copy this channel clearly, where I choose the blue channel.

2, point image → adjustment → color order, move the black triangle to the right, adjust the color level of the dark hue, and then move the white triangle to the left to adjust the tonal levels of the light to separate the tones of the characters and backgrounds in the image, or enter the levels above: 135/1.00/195.

3, the contour of the figure has been basically separated from the background, and then we use the brush tool to the characters inside the white smear black.

4, point image → adjustment → reversed phase, the character part of the white is to select the region.

5, the Point channel surface version below the "channel as a selection load" and then go back to the level version, select the background layer.

6, the constituency has been produced and then edited and pasted the order to select the characters.