You don't know the PS technique.

Yeming: Following the use of Photoshop number of melon seeds, the great gods have recount, the Photoshop alternative interesting features dug incisively and vividly, we come to see, Photoshop can even use this?!

One: Compress background retention body. This function is very practical ah, but the effect is a little difficult to control.

If we want to flatten this picture, according to the normal compression method, people will appear too flat and appear unreal.

The ratio of content recognition can be a good solution to this problem,

But sometimes its automatic recognition is poor, you can first create an alpha channel, and then select the protected area in the option (not compressed area).

This is the contrast diagram:

Two: A quick change of background only one step, you can realize the replacement of the background.

Open a picture with a relatively clean background,

Then open a Mr Cheung picture and put the cloud on top of this picture.

Double-click the layer of the cloud.

Then make a selection at the bottom of the mix color band.

This layer of this buoy, left this right is to hide the darker pixels of this layer,

Right this left is to hide the brighter pixels of this layer,

The following layer is exactly the opposite, but not exactly the corresponding one.

Because the brightness information for the top and bottom two layers is not the same, even if the buoy is at the same point, the effect is not the same.

We are like this layer below the Ventura.

Effect as shown:

Looks like you can also:

Third: The imitation of the naked eye 3D This is relatively simple, but sometimes the effect can be produced.

Open a picture,

Copy the layer, and then double-click.

Select only one of the r,g,b in the advanced blending

Then move the layer slightly, creating a mismatch with the layer below.

Four: Use PS to pick a fault

Finding fault is a popular game, I say how to use PS fault.

First, pull a constituency and pull out the contents of the two pictures on the left and right.

Do not underestimate this step, technical quite strong, because you want to ensure that the edge is clear, can not pull too large or too small, otherwise the effect is not good, hold down shift pull, because this is a square, pull the end, directly with pull through this constituency to choose another on the line.

After this is done:

Show the background layer, and then change the blending mode of the layer on the left to the difference.

You will find that it has become this:

What do you mean? If each pixel of the two pictures is exactly the same, then in the difference mode, it becomes black

You get it?

We just need to put the truncated graph together and change the pattern above to the difference.

You can clearly see the difference.

Amount of ... Seemingly did not very fine, but the stubble has been we find out!

"Using Photoshop to count melon seeds"

1, scatter the melon seeds on the light-colored ground or light colored paper, make it spread as far as possible;

2. Digital camera is copied into the computer and opened with PS. If the contrast is not high can adjust "threshold value";

3, choose Magic Wand Tool > Click on the Blank > reverse, get all the melon seeds of the selection. If the picture contains a small amount of impurities or contact with the melon seeds, through the "Selection > Modification > Contraction" for removal or separation;

4, select "Analysis > select data points > Customize". In the selection, select count and click OK;

5, choose "Window > Measurement record";

6, select "Analysis > Record measurement";

7. The results are as follows:

Note: The image processing process can be automated batch processing through the "action" function to improve efficiency.

Note : More wonderful tutorials Please pay attention to the triple Photoshop tutorial section, triple PS group: 182958314 welcome you to join

Category:

• PS Getting Started Tutorial