PS Use Channel to add blue sky to the spring White location picture

It's quicker to change the sky with the passage. Just select the appropriate channel and copy, in the copy channel to the dark and high light contrast increase, the need to retain the part of the direct black, and then the channel into a constituency, the selection of the election to be the need to retain the part. After you copy the picture, add the desired sky material at the bottom.

Original

Final effect

1, open the original image.

2, we enter the channel surface version. First look at the red channel, red channel inside the leaf range of black and white contrast is more obvious, yellow rape is almost white, unfavorable to us to take.

3, take a look at the green channel, the leaf range Black-and-White is also more obvious, yellow rape is still almost white, but also unfavorable to us.

4, look at the blue channel, although not too ideal, always better than the other two channels, especially rape, too in line with my needs! Just use this channel. Because White is a house, black is to take.

Although the blue is the best, it still needs us to make drastic changes to meet our needs.

5, in the end we need a what kind of black and white range? That is to turn the sky into white, the need to preserve the black, need to transition to become gray (translucent).

In order not to destroy the original image of the color channel, I on the blue channel press the right mouse button, the need to copy a blue channel.

6, next we in the copy of the blue channel on the back of the operation.

7, adjust the color level.

8, the color level contrast slightly strengthen some, let black more black, white more white. Strength to rely on experience, generally unfavorable to strengthen too much, if you try several times to see the final results, you can find the approximate best range, and then you have experience, according to the different photos, the intensity of this step should increase.

9, the use of deepening tools.

10, only deepen the change of the darkest part of the leaves, as far as possible does not involve the leaves of the high light and midtones, so as to ensure that the final effect of the natural transition between the leaves and the sky.

11, deepen the dark part of the leaves, rape part.

12, use the appropriate size of the soft side of the brush, we need to preserve the scope of the smear into black.

13, look at the change of the completion of the channel; This is the black and white range we need; that is to turn the sky into white, to turn the need to black, and to turn gray.

14. Now we are loading the channel as a constituency.

15, the channel as a selection of the selection of the white, I need to direct the tree and the ground directly extracted, so I need to choose black, then we will "reverse election".

16, now we have chosen the black range we need.

17, now we go back to the "layer board", we found that the constituency is what we need! We can now understand that the channel establishes a black-and-white relationship in order for us to quickly build the range we need to choose.

18. We make a copy of the required range and then paste it directly.

19, we see a new layer in the layer (layer 1).

20, we put the original layer (layer 0) off the instructions are visible, only to show that we created "layer 1", we found that the white sky has gone, the background becomes transparent.

21, we put the blue sky and white cloud material placed in the "Layer 1" below, the general effect came out. Of course, we have to make the final repairs, such as the distant sky and the surface of the skyline transition too blunt.

22, we continue to operate on the blue sky and white clouds layer, add layer mask for blue sky and white clouds layer.

23, on the layer mask operation; Make sure the palette color is front black and white, select the Gradient tool.

24, to the layer mask from the bottom to create a black and white gradient.

25, we can see in the Blue Sky layer to establish the role of the mask, black is transparent, white is opaque, the mask black to white gradient, is transparent and opaque transition.

26, when we have the bottom of the original image (layer 0) instructions visible, the natural skyline transition is formed.

27, we enlarge the leaf part, can see the leaf edge of white and dark blue sky transition unnatural.

28. We select the layer (layer 1) of the leaves on the layers panel and execute the menu. Layer "-Trim edge"-"Go Edge".

29, go to the edge of 1 pixels.

30. The transition between the leaves and the sky is natural.

Final effect:

Category:

• PS Image Processing