1, first take a screenshot of the video.
2, use PS to key the picture.
If the entire video keying, it should be noted that the dynamic video keying is a very troublesome thing, if the scene is too complex, that is, the professional video editing software have no way, a stupid way is a frame by frame keying, of course, this workload is too large, some particularly complex scenes are no other good method.
If the video is a monochrome background (preferably blue), it would be better to do, in Acoustic Studio with a masking approach can be removed from the background, so as to achieve the effect of dynamic video keying.
If you want to key GIF animation, you can change the background to a dark background in the gif movie gear this software, export to video format, and then imported into the sound will shadow inside the key.
A, eraser keying
Methods, features and scope of application: eraser keying is to use the eraser tool to erase the part that is not used, leaving a useful part. This method is the shape of the keying method, simple and easy to use, but the processing effect is not good, can be used for the shape of simple graphic lines keying. But mainly used for other methods of keying after the effect of further processing.
Steps:
1, open the picture;
2, double-click the layer, the background layer to the ordinary layer
3, select the eraser tool, optional brush the main diameter of a large point, the first roughly erase most of the parts that do not use
4, and then select the main diameter of the brush a small point to zoom out of the picture, for fine processing
Two Magic Wand Keying
Methods, features and scope of application: Magic Wand Keying is to use the Magic Wand tool to select the part that is not used, or select the part that is to be used and then inverse selection, and then deleted, leaving the useful part. This method belongs to the category of color keying, easy to use, but not suitable to achieve the desired effect. Therefore, it can only be used for the part of the picture to be used and not used part of the color difference between the larger keying or other keying methods for the auxiliary method.
Steps:
1, open the picture;
2, double-click the layer, the background layer to the ordinary layer;
3, select the Magic Wand tool, take the appropriate tolerance value in the attribute bar (the color difference when the smaller value must be selected, generally take the value of 20); such as due to the color difference between the picture is large, can be selected from a larger value of 80;
4, point selection background;
5, edit/clear
Three, path keying
Methods, features and scope of application: path keying is to use the pen tool to use the picture to use part of the circle, and then the path as a selection of the load, the inverse selection, and then from the layer to delete the part that does not use. This method also belongs to the shape of the keying method, can be used for more complex shape, the color difference is not big picture keying. Supplemented by the rubber sassafras tool, you can achieve good results.
Steps:
1, open the picture;
2, double-click the layer, the background layer to the ordinary layer;
3, select the pen tool, select the parameters in its attribute bar;
4, the picture to be used in the part of the circle;
5, the end point of the start, the formation of the closed area;
6, the path panel below the path will be selected as the path;
6, in the path panel, select the path to be used as the path to be used;
5, the end of the start, forming closed areas;
6, in the Path panel below tap the path as a selection to load the button;
7, select / inverse selection.
Four, mask keying
Methods, features and scope of application: Mask keying is a comprehensive keying method, that is, the use of the figure in the shape of the object is also used to take advantage of its color. First use the Magic Wand tool to select the object, and then add a graphic mask to select the object. The key link is to use white and black brushes to repeatedly reduce and add the mask area, so that the object shape of the complete fine selected.
Steps:
1, open the picture;
2, double-click the layer, the background layer to the ordinary layer;
3, select the Magic Wand tool, the tolerance to select the big point (50-80), hold down the Shift key, through a number of points to select the object all the way out;
4, press the Add Mask tool button;
4, add a mask to the object shape of a complete fine selection. Add Mask tool button;
5, in the Navigator panel will display a larger scale, highlighting the part to be modified;
6, select the background color is black, the foreground color is white;
7, select the brush tool, the diameter of the 10 or so, to modify part of the mask area;
8, the brush diameter to adjust the smaller (5-7), converting the foreground and background color;
8, to adjust the brush diameter (5-7), converting the foreground and background color. -7), convert the foreground and background color, so that the foreground color is black, to add the excess part of the minus;
9, if it is not enough, then repeat the 7, 8 two steps to achieve satisfactory results.
Fifth, channel keying
Methods, features and scope of application: channel keying belongs to the color keying method, the use of the object's color in the red, yellow and blue channels in the contrast of the characteristics of the same, so that the contrast of the channel to the object in the processing. First select the large contrast channel, and then copy the channel, in which by further increasing the contrast, and then use the Magic Wand tool to select the object. Can be applied to the color difference is not large, and the shape of the image is very complex keying, such as hair, branches, fireworks and so on.
Steps:
1, open the picture;
2, double-click the layer, the background layer to the ordinary layer;
3, open the channel panel, respectively, click on the red, yellow, blue three monochrome panel, to find out the object of the clearest channel, the figure we click on the blue channel;
4, the blue channel dragged to the channel panel below the create a new channel button, copy the blue channel to create a new channel. New Channel button, copy the blue copy of the channel;
5, Image/Adjustments/Levels, adjust the "Input Levels" to enhance the object contrast;
6, Image/Adjustments/Inverted;
7, the choice of the lasso tool, the fireworks and other patterns out of the circle;
8, select the / Invert, Edit / Fill / Fill Foreground Color (white), select / deselect;
9, Image / Adjust / Invert;
10, hold down the "Ctrl" key to point to the blue copy of the channel, such as the fireworks loaded into the selection, the function of the transformation to the layer board, the fireworks and so on are selected;
11, Select/Inverse Selection, Edit/Clear; Select/Unselect