Open the following picture, copy the layer, and lock the background layer. We will pull the image at the copy layer to hide the background layer. Choose >> Color Range, open the Color Range window, select the left-most eyedropper tool and click on the image background, then in the Color Range window you will find that the selected part becomes white, moving the color tolerance slider, making most of the image black, and the background easy to select. Tip: To add color to a selection, use the middle Eyedropper tool to click the color section you want to add
2 Get a selection, in the channel panel, press the "Store as Channel" button, get an Alpha channel, deselect (ctrl+d), click on the "Alpha 1" layer, then the image becomes black and white. Hint: The black area in the image is the part that we want to keep, the white for the part to deduct
3 We found that there are also some gray areas in the image, which will become translucent areas, so you must adjust them to pure black or pure white. Image >> adjustment >> levels, open the Levels window, drag the Black slider from left to right until the gray area becomes solid black. Move the white slider from right to left to make the white area clearer
4 Select the black brush and improve the edge hardness of the brush, smear the area that needs to be preserved, apply a white brush to the edge of the feather, use different thickness of brush according to the size of the smear area
5 Sometimes it is difficult to speculate on what needs to be retained where the need to buckle, then click the RGB channel, the original image appears, and the mask area has a layer of light red, continue to clean the mask range.
6 Press CTRL and click on the "Alpha 1" channel, get the selection, return to the Layers panel, delete the selection
According to the above method, deduct the rest of the background, then look at the edge of the feather, is not the buckle is very clean.
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