Premiere Video filter details

Premiere Video filter details

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1. brightness & contrast (brightness and contrast)
The filter effect in this video changes the brightness and contrast of the screen. The adjustment is similar to the adjustment of brightness and contrast in TV, but here the adjustment is to move the slider,
2. Channel Mixer (Channel synthesizer)
You can use the filter effect of this video to modify a color channel with the merging values of several color channels. With this effect, you can create a color adjustment effect that is difficult to produce using other color adjustment tools. By selecting one part of each color channel, you can combine it into a high-quality grayscale image, create high-quality tan or other tones of images that have been switched or replicated through channels,
3. Color balance)
In this video, the filter effect uses the slider to adjust the distribution ratio of the RGB color, so that a color is biased to adjust its brightness. This filter is a time-changing stunt,
4. convolution kernel (CORE)
In this video, the filter effect uses an internal mathematical expression to input data to the internal expression through the matrix text to calculate the vortex value of the surrounding pixels of each pixel, and thus obtain a wide range of video effects. You can select the data mode from the provided mode menu to modify the data mode, or enter a new value (as long as the effect is considered in the convolution matrix text box, the center number is the calculated value of the pixel brightness (the input number is multiplied by the brightness value of the pixel), and the surrounding number is the calculated value required by the pixels around the pixel, the value entered in this box is multiplied by the brightness value of the surrounding pixel.
The number entered in the scale text box in the MISC (Miscellaneous) framework is used as the addition, the pixel includes the product of the pixel of the surrounding pixel and the point corresponding to the data matrix of the input Environmental Center pixel. The offset text box is the offset of a calculation result (which is added to the operator ).
The input range of all values is large, ranging from-99999 ~ 999999, but the actual use is not so big, it depends on the demonstration effect.
If you find that the defined set of data is very useful and will be used later, you can click the Save button to store it and remember the folder and file name (or store it on a floppy disk ). Next, click the Load button to load it to the current data definition format.
If you want to use the specified image conversion data format, click the button above figure 7-20 and select the corresponding option from the pop-up menu. The specified data format for image conversion is a very useful tool that can blur or clarify the image. To fully illustrate the problem, figure 7-21 lists several typical effects for your reference. This is a typical example selected from Figure 7-20. These video effects are useful when making special programs for static images. It is similar to the filtering effect in Adobe Photoshop, but it is used in film production. If you don't know about premiere, you may want to use Photoshop for processing. However, if a photo is processed by Photoshop before being used for film production, it will inevitably lead to a waste of disk space and time. We can see the efficiency of premiere here.
5. Extract (extract)
When you want to use a color image as a mask, you should convert it into a grayscale image. With this video filter effect, you can select the gray level to achieve a more practical effect. Figure 7-22 shows a dialog box for extracting the mask of a video clip.
There are two slide blocks, two black and 3-angle slide blocks with a line chart, which are used to select the gray scale converted to white in the original screen. The softness slider is used to adjust the softness of the screen. You can use the invert check box to reverse the specified grayscale image. The black trapezoid diagram in the lower left corner (white in reverse phase) changes with the slide of softness. When it changes to a triangle, it indicates that the original image has been achieved. When it is a trapezoid, it indicates that the border between brightness and brightness of the original image is modified.
6. levels (color level)
This video filter combines the brightness, contrast, color balance (including color inversion), and other parameter adjustment functions of the screen to improve the output image quality and effect. Figure 7-23 shows the adjustment dialog box.
In Figure 7-23, you can use the RGB channel selection menu to select RGB, R, G, and B channels as the modified object. The default value is RGB channel. The Center on the left is divided into the color and pixel distribution line chart of the original image. The horizontal line chart is left to right to indicate the brightness and brightness of the pixel. The left side is 0 (the lowest dark point), and the right side is 255 (the most bright spot). The vertical side shows the total number of pixels. Therefore, the closer the graph line to the left represents the darker pixel point, and the closer the graph line to the right represents the brighter pixel point.
Follow these steps to adjust the brightness and contrast in the Levels dialog box:
(1) Use the Three slide below the line chart or enter a specific value in the input levels text box to adjust the color usage. To increase the brightness, move the white triangle to the left, and vice versa, move the white triangle To the right. To increase the image shadow, move the black triangle to the right, otherwise, move the black triangle to the left. If you need to adjust the gray level, move the gray triangle appropriately. Note: Do not set the gray slider and the black slider to overlap. Otherwise, the gray slider and the black slider become two.
(2) Adjust the contrast of the screen output. Use two slide blocks of the screen or enter a specific value in the output levels (level output) text box to adjust the contrast. If you want to increase the brightness of the black area of the screen, you should move the black triangle to the right. If you want to reduce the brightness of the white area of the screen, you should move the white triangle to the left; if you want to use a reversed color, you should swap the black and white slider positions.
(3) To save the setting result for future use, click Save. Click the Load button to load the stored files. The definition format is *. LVL.
(4) Click OK.
7. posterize (Multi-tone color printing)
The video effect can reduce the number of colors in the original image, leaving at most the basic colors such as red, green, blue, and yellow; finally, the color in the original image is converted into colors in Advertising posters. It is a video effect that changes over time. 7.3.2 blur video filter effect group
There are 7 Video Effects in the Blur video effect group.
1. antialias)
In this video, the filter effect averages the significant color changes in the image area to soften the image. Add appropriate colors in the transition area from dark to bright to blur the image in the area.
2. Camera blur (CAMERA blur)
In this video, the filter effect is blurred over time, so that the screen is blurred from the clearest to the nearest. It is like the blurred scene that occurs when the camera adjusts the focal length. This video filter effect can be applied to the starting or ending scene of the clip to make the focusing effect.
To use the focusing effect, you must set the screen of the start point and the screen of the end point. 7-27 shows the comparison of two pictures in the focusing process. The filter effect of this video has only one adjustment slider, so that different positions of the slider can be used to open the start and end points respectively.
3. directional blur (fuzzy with directionality)
In this video, the filter effect produces a directional blur in the image, which produces an illusion of movement of fragments.
Direction (Direction) specifies the blur Direction. When the blur effect is applied, the steps are evenly distributed around the pixel center. All the effects set to 180 degrees are the same as those set to 0 degrees; blur length (Fuzzy length) specifies the image blur degree.
4. Fast blur (fast fuzzy)
You can use this video filter to specify the image blur speed. The orientation that can be specified is horizontal, vertical, or two. The Blur effect produced by Fast blur is faster than that produced by Gaussian blur.
5. Gaussian Blur (Gaussian Blur)
In this video, the filter effect is used to blur the image by modifying the difference between the border points. The effect is the same as using several blur or blur more. Gaussian is a deformation curve generated by the color values of neighboring pixels of the image. It can change a sharp image to make a confused effect. In Figure 7-30, the right image is a comparison between the image before and after Gaussian blur, and the left is the original image.
6. ghosting)
The filter effect of this video transparently overwrites the currently played frame to the previous screenshot, which produces a phantom effect that is sometimes used in movie stunt effects.
7. Radial blur (Ray blur)
The filter effect of this video can make the screen emit light (scaled appropriately) or soften the rotation. Figure 7-31 shows the radiation softening Setting dialog box. Selecting zoom (zoom) Single-choice button softening will form a radiant blur line; while selecting spin (rotate) Single-choice button, softening will form many concentric circles of fuzzy lines. Adjust the amount slider or enter a value (1 ~ 100) change the Blur degree. Click (or drag) at a certain point in the display to determine the Blur axis point. The filter effect of this video changes over time.
7.3.3 Channel Video filter effect group
There is only one video filter effect in the Channel Video filter effect group.
Invert (reverse)
The filter effect of this video can change the color of the screen to the opposite color. For example, after the original image is reversed to white, it turns black and red into green.
7.3.4 distort video filter effect group
There are 11 video filter effects in the distort video filter effect group, as shown in 7-34.
1. Bend (bending deformation)
The effect of this video filter will make the film segment bend horizontally or vertically. You can select sine, circle, triangle, or square as the waveform of bending deformation ). The slider is used to adjust the deformation of the video filter effect in the horizontal and vertical directions. The adjusted parameters include intensity and rate) and width (width), as shown in 7-35. At the same time, you can specify the direction of movement of the waveform in the horizontal direction. The direction is left (to the left), right (to the right) in (inward), and out (outward ), in the vertical direction, you can select up (up), down (down), in (inner), and on (outward ).
2. Lens Distortion (lens distortion)
In this video, the filter effect can distort the original image shape. By adjusting the slider, the image can be spherical, horizontal, vertical, and vertical. By using the slide of various distortion, the screen can be changed as if it were a mirror. Figure 7-36 shows the video filter effect Setting Dialog Box with distorted lens.
3. Mirror (image)
The filter effect of this video allows the screen to have a symmetric image. It obtains a symmetric axis in the horizontal or vertical direction and keeps the image on the top left of the axis as is, the image on the upper right side is added symmetric Based on the image on the left side, just like the mirror.

In practice, you can select the horizontal or vertical button to change the direction of the image's symmetric axis; you can adjust the position of the axis of symmetry through the "mirror demarcation line indicator and adjustment slider" within the entire screen range (currently on the image, if vertical is selected, it is on the left ). You can select the left, right, top, and bottom options to determine the reflected surface, so as to display the image effects in different orientations.
4. Pinch (contraction)
The filter effect of this video can extend the center of the screen to the edge, resulting in a convex spherical effect on the screen. It can also contract from the edge of the screen to the center of the screen, form the spherical effect of the image. The Setting dialog box of the video filter effect contains a slider to adjust the percentage of the screen extending or shrinking. It is a video filter effect that changes over time. 5. Polar Coordinates (polar coordinates)
The filter effect of this video can convert the original image from the Cartesian coordinate to the polar coordinate, or from the polar coordinate to the Cartesian coordinate.
6. Ripple)
The filter effect of this video allows the screen to form a fluctuating effect, which is like a ripple motion on the water surface. The form of ripple can be selected from the sine (SINE), circle (circle), triangle (triangle) or square (square. Use the slider to adjust the fluctuation intensity in the horizontal and vertical directions. The adjusted parameters include intensity, rate, and width ). Figure 7-41 shows its adjustment dialog box. At the same time, you can specify the direction of movement of the waveform in the horizontal direction: Left, right, in, and out ). In the vertical direction, you can select the following options: Up, down, inner, and outward. It is the same as bend, but it is different from bend in the output image.
7. shear (shear)
The filter effect of this video changes the image along a vertical curve. At first, it is a straight line. You can click on it to generate several control points. Drag the control point to a different position, and the screen root changes with the curve adjustment pattern. To remove a control point, drag it out of the range. If the adjustment is poor, you can use the reset button to restore to the initial state. It is a video filter effect that changes over time. In Figure 7-42, select the wrap around radio button to wrap the screen to fill in the blank area generated by deformation. Select the repeat edge pixels radio button to go along the edge of the screen, let the pixel color stretch in the extended direction. When pixels are in various colors, they can form a beautiful band.
8. spherize (spherical)
In this video, the filter effect is convex or concave deformation in the largest incircle of the screen, and the deformation intensity (-100 ~) is changed by adjusting the slider ~ 100 ). If you do not want to use the normal (normal) Change Mode in the horizontal and vertical directions, you can use single-direction (horizontal or vertical) deformation. Figure 7-43 shows the adjustment dialog box using the normal deformation mode. The current deformation intensity value is the maximum. It is a video filter effect that changes over time.
9. Twirl (vortex)
The filter effect of this video allows the screen to rotate in a vortex from the center. The closer the video is to the center, the more intense the image is to be rotated. As shown in 7-44, move the slider or enter a value (-999 ~ 999) the angle of the vortex can be adjusted. The preview box in the upper part of the dialog box shows the effect of the current setting.
10. Wave)
The filter effect of this video will make the screen form a wave deformation effect. Figure 7-45 shows its Setting dialog box. In the figure, there are three main parameters to adjust the slider: the slider of the waveform generator to generate the shape of the wave, that is, the number of waves (1 ~ 999); wavelength adjustment slider, used to adjust the distance between the peaks (1 ~ 999); amplitude adjustment slider, used to adjust the Bending Deformation of each wave (1 ~ 999 ). In addition to the three main parameters, the deformation percentage of the waveform in the horizontal and vertical directions can be controlled by scale (0% ~ 100%) and select the waveform type (there are three single button types: sine wave, triangle, and square wave.
11. Zigzag (twists and turns)
In this video, the filter effect changes the image along the radiation direction, and the deformation effect can be adjusted. Figure 7-46 shows the Setting dialog box. Enter a value (0 ~ 100) or adjust the slider to set the deformation. Use the ridges text box or slider to set the number of jagged waves (1 ~) formed from the center of the screen to the edge ~ 20 ). In addition, there are three pixel offset modes in the mode option: pond ripple is a ripple in the pond, and the out from center allows the pixel to be shifted from the center to the edge, the und center item allows pixels to rotate with the center of the screen. The filter effect of this video changes over time.
7.3.5 image control video filter effect group
There are 8 video filter effects in the image control video filter effect group.
1. Black & white (black and white)
The effect of this video filter will convert the color image of a movie clip into a gray-level black and white image.
2. Color balance (HLS) (color balance)
The filter effect in this video can change the hue, lightness, and saturation of the colored painting surface of a movie clip.
3. Color Offset)
In this video, the filter effect can be adjusted to one channel (red, green, and blue) in the three channels of rgbso that the channel can be up, down, left), right (right) for 0% ~ Displacement of 100%. This video filter effect is prepared for the production of a three-dimensional movie. The three-dimensional movie must wear a special filter glasses to see the three-dimensional effect. Using this video filter will produce two pictures of different colors.
4. Color pass (color channel)
In this video, the filter effect can be used to convert any part other than a single color into a grayscale image. You can use this effect to add a specific area of sequins. You can select a color from the color palette or use a straw tool to draw a color from the original screen as the channel color. You can adjust the slider to change the color range (expand or narrow ). With the time-varying features, you can make a transitional effect based on the color level.

5. Color replace)
This video filter effect can be used to color a certain color to change the adjacent color of the screen, so it is called color to replace the video filter effect. In this way, you can change the local color or apply all the same colors. You can also use the time-varying features to change the color of the scene. Unlike color pass, it keeps the color components that are not replaced in the original image, and only colors or colors the adjacent colors. Figure 7-52 shows the Setting dialog box for the effect of the color replacement video filter.
6. Gamma Correction (Grayscale Correction)
The filter effect of this video adjusts the contrast of the image to make the image light or dark. It is implemented by correcting (increasing or decreasing) the gray or equivalent color of the central gray level, rather than increasing or decreasing the brightness of the light source.
7. Medina (median)
The video filter effect can replace each pixel with the RGB average of the surrounding pixels.
8. Tint (color)
In this video, the filter effect adds a certain color to the screen, which is separated to form a compound color screen. Select a color from the color palette by clicking the color sample box; adjust the percentage of colors to be added using the slider (1 ~ 100% ). It is a video filter effect that changes over time. Therefore, you can change one color of the original image to another.
7.3.6 perspective video filter effect group
The Perspective video filter effect group contains five video filter effects.
1. Basic 3D (Basic 3d)
The video filter effect operates in a virtual 3D space. Images can be rotated around the horizontal and vertical axes and moved close to or away from the screen. Using basic 3D effects, you can also create a highlighted area of the mirror to produce an effect in which light is reflected from a rotating surface. The light source in the highlighted area of the mirror is always on the top, back, and left of the observer. Because the light comes from the top, you must tilt the image back to see the reflection effect. In this way, the authenticity of the 3D effect can be enhanced.
Swivel (rotation), controls horizontal rotation (rotating around a vertical axis), rotating an image 90 o degrees to see its back, that is, the image before the image; tilt (tilt) controls vertical rotation. Distance to image specifies the distance between the image and the observer. As the distance increases, the image will be regressed. The specular highlight (mirror highlight area) adds a ray of flickering light that is reflected back from the rotation layer, just like a light source located on the top of the head; preview displays the line frame of a 3D image. Select this option to accelerate the display. To view the final result, cancel the selection of this option.
2. bevel alpha (skewed alpha)
The video filter effect can generate a chisel stereo effect for the Alpha boundary of the image. If there is no alpha channel in the clip, or its alpha channel is completely opaque, the effect will be applied to the edge of the clip. The edges produced by using this effect are softer than those produced by using the bevel edges effect.
3. bevel edges (skewed edge)
This video filter effect can produce a cut-through three-dimensional effect on the image edge. The edge position is determined by the alpha channel of the source image. Unlike bevel Alpha, bevel edges always produces rectangular effects, as shown in 7-60. Therefore, images with non-rectangular Alpha channels cannot display correctly. All edges have the same thickness.
4. Drop Shadow (Shadow)
This effect adds a shadow that is displayed after the clip. The shape of Drop Shadow is determined by the alpha channel of the clip. Unlike most other effects, this effect can create an effect beyond the boundaries of a piece.
5. Transform (deformation)
The video filter effect can apply a two-dimensional geometric deformation to the clip. Use it to tilt the part along any axis
7.3.7 there are three video filter effects in the pixelate video filter effect group.
1. crystalize (crystallization)
The filter effect of this video allows the color pattern of the current screen to form a crystal, and the number of crystals can be set through the slider. It changes with time, so you can set the crystallization effect between the start point and the end point. Figure 7-63 shows the image before and after the crystallization effect.
2. facet (FACET)
The video filter effect Combines pixels of similar colors into polygon, which produces the effect of GEM carving.
3. pointillize (point-based)
The filter effect of this video can scatter the color of the screen and replace the smooth screen with dots. You can use the slider to adjust the size of the scatter (3 ~ 300 pixels), the smaller the point, the more obvious the original image. Generally, when the image scatter is more than 8, the original image cannot be displayed, and only random graphic blocks can be displayed. It is a video filter effect that changes over time. Note: If the output size of a movie is large, and the dynamic change of the movie and the use of numerous dispersion points are used, a considerable amount of machine time is required, or even longer than the average estimated time.
7.3.8 render video filter effect group
The render video filter effect group has only one video filter effect.
1. Lens flare (lens halo)
In this video, the filter effect can be used to filter the light ring with three lenses, and different intensity light is used to emit the light from a certain position of the screen. It is a video filter effect that changes over time. You can set the start position and end position of the illumination to express the moving process of the lens light source.
You can adjust the intensity after filtering by using the brightness slider. Click a location in the figure to determine the location of the new luminous point. Three Filter Lens options are available at the bottom of the preview window.
7.3.9 sharpen video filter effect group
There are three video filter effects in the sharpen video filter effect group.
1. Gaussian sharpen (Gaussian sharpening)
In this video, the filter effect is used to modify the difference between the border points of the light and shade, so that the image is extremely sharp, which is opposite to Gaussian blur. The effect is equivalent to using sharpen or sharper more several times.
2. Sharpen (Sharpen)
The filter effect of this video can significantly compare adjacent pixels in the image to make the image clearer.
3. Sharpen edge)
The filter effect of this video enables more obvious comparison between pixels in the picture, making the image clearer. 7.3.10 stylize video filter effect group
There are 12 video filter effects in the stylize video filter effect group.
1. Alpha glow (alpha glow)
In this video, the filter effect only applies to fragments with Alpha channels and only applies to 1st Alpha channels. It can be at the edge of the region specified by the alpha channel to produce a color that gradually fades or transitions to another color. The parameter Settings dialog box is 7-73. The glow is used to adjust the current luminous color value, and the brightness slider is used to adjust the brightness of the alpha channel area of the screen. Use the start color and end color bars to set the start and end values of the additional colors. This is a video filter effect that changes over time.
2. Color emboss (color embossed)
In addition to the color of the original image, the filter effect of this video is the same as that of emboss.
3. emboss)
The filter effect of this video fades out the color of the current screen, and uses the gray level to describe the screen to form an embossed effect.
4. Find edges (delineate edges)
In this video, the filter effect can be used to define the edge of a colored image with a colored line. For a grayscale image, use a white line to define its edge.
5. Mosaic (MOSAIC)
In this video, the filter effect is layered by the color of the screen, and mosaic pattern is used to replace the bottom image of the Source Screen. By adjusting the slider, you can control the size of the mosaic pattern to maintain the appearance of the original image. You can also select a more sharp image. The filter effect of this video changes over time.
6. Noise)
The video filter randomly changes the value of pixels in the entire image. Figure 7-78 shows the setting options of the effect and the comparison of the effect. You can use the amount of noise option to specify the noise level (0% ~ 100% ). When the use color noise option is selected, the red, green, and Blue values of the image pixels can be randomly changed. Otherwise, the values of the three primary colors in all color channels are the same. The clipping option determines whether to distort the pixel color caused by noise. When the clipping option is selected, the image can be identified even if the noise value of 100% is used. If you want a completely random image, disable the clipping option and enable the color noise option.
7. Replicate (copy)
This video's filter effect can copy the screen to display up to 4 at the same time on the screen ~ 256 Identical images. You can use this video filter to create a screen background.
8. solarize)
The filter effect of this video can mix the screen along the positive and negative directions, and select the mixed color by adjusting the slider. It is a video filter effect that changes over time.
9. strobe light (Flashlight)
The filter effect of this video can perform arithmetic operations on a piece at a certain period or randomly. For example, the segment turns white every five seconds and displays 0.1 seconds; or the segment color is reversed at random intervals. Its parameter settings and effects.
Blend with original specifies the intensity or brightness of the effect. A large value will reduce the intensity of the effect. Strobe duration specifies the duration of the Effect duration in seconds; strobe period specifies the duration of the effect after the application starts in seconds. For example, if strobe duration is set to 0.1 seconds and strobe period is set to 1.0 seconds, the duration of the effect applied to the part is 0.1 seconds, and the duration of the effect not applied is 0.9 seconds; random strobe probability specifies the possibility that any given token in the clip will be applied to this effect; strobe specifies the method of applying the effect. Operates on color only applies this effect to all color channels. Make layer transparent makes the parts transparent when applying the effect. When operates on color only is selected in the strobe drop-down list box, the specified arithmetic operator is saved as copy.
10. texturize (made of materials)
This effect makes the clip look like a material with other clips. For example, you can make a tree look like a brick material, and control the depth of the material and the surface light source.
11. Tiles (tile)
The filter effect of this video splits the screen into many blocks, just like the tile effect. The filter effect Setting dialog box is displayed in 7-83. Enter a value (1 ~) in the number of tiles text box ~ 99), you can change the number of slices of the split image. For a image, if the input is 6, the image is divided vertically for 6 times and horizontally for 8 times. By setting maximum offset (maximum offset) 1 ~ 99. It is a video filter effect that changes over time.
The four single options in the lower part are used to select the joint color. You can select the default white background color, the default black foreground color, the screen color, and the reversed color of the screen.
12. Wind)
The filter effect of this video will make the screen form a wind-blown deformation effect. Figure 7-84 shows the Setting dialog box for this effect. You can select three types of wind in the Method Framework: wind, blast, and stagger. You can set the direction of wind blowing in the direction framework.
7.3.11 video filter effect group
There are two video filter effects in the Time Video filter effect group.
1. Echo)
The video filter effect can combine multiple frames from different moments in the clip. You can use it to create a simple visual echo effect to a complex drag effect. This effect is visible only when the clip has an animation. By default, when the echo effect is applied, any effect of the previous application will be ignored. If you do not want to ignore these effects, you can create a virtual clip first.
Note: The echo time specifies the time between echo in seconds. Negative values will echo from the previous creation; positive values will echo from the subsequent creation; number of echoes specifies the number of Echo effect combinations; starting intensity specifies the intensity or brightness starting from the echo sequence; decay specifies the echo intensity ratio; echo operator specifies the operator between ECHO; add combines echo by adding the pixel value; maximum combines the echo by taking the maximum pixel value of all the echo; minimum combines the echo by taking the smallest pixel value of all the echo; screen combines the echo by capturing the echo, similar to add, but not so fast; composite in back uses a combination of ECHO Alpha channels from the back to the front; composite in front uses a combination of ECHO Alpha channels from the back to the back.
2. posterize time (intermittent)
The filter effect of this video can be extracted from a certain number of frames in a movie clip. If the frame rate is specified to 4, it indicates that only one frame is selected from each four original movie frames for playback. Due to the intention to cause Frame loss, the screen may feel intermittent.
7.3.12 transform video filter effect group
There are 10 video filter effects in the transform video filter effect group.
. Camera view (camera view)
The filter effect of this video imitates the camera to take a clip from different angles. Imagine a sphere where the object is located at the center of the sphere, and the camera is located at the sphere surface. By controlling the camera position, you can distort the shape of the clip image. It is a video filter effect that changes in multiple directions over time and has a perspective effect.
Longpolling moves the camera horizontally to make the clip rotate horizontally. The latitude moves the camera vertically to make the clip look vertical; roll (rotate) the camera to make the split as if it were rotating in the plane; Focal Length (focal length) changes the focal length of the camera lens. The shorter the focal length, the wider the field of view. The longer the focal length, the narrower the field of view, but the closer the angle of view. Distance specifies the distance from the camera to the center of the sphere. Zoom) zoom in or out the clip; fill (fill) specifies the fill color of the space after the clip is distorted; fill alpha channel (fill alpha channel) select this check box to make the background transparent, it is convenient to overlay parts with other parts.
2. Clip and crop (TRIM edges)
The two video filter effects can trim the edges of the image due to the digital image capture card. The slider is used to trim the four sides. You can set the value to pixel or percent during trim. In this method, four blank edges are left after the edge is repaired. The edges cannot be eliminated and can only be replaced by the same color. If you want to maintain the size of the cropped clip, use the crop video filter to trim it.
Both clip and crop are video filter effects that change over time. The trim function is similar and only differs in edge processing. One is to leave blank edges, and the other is to adjust the size automatically, so the application significance is also different. Figure 7-89 and Figure 7-90 compare the effects of the two pruning results. It can be seen that clip trim effects can only be used for fragments with a small range of edge adjustment, and must be color-less. Crop trim effects can be applied to an image multiple times, you can obtain the full screen effect of a local image, as if the photo was enlarged.
3. Horizontal flip (horizontal flip) and vertical flip (vertical flip)
In this video, the filter effect is equivalent to the reverse effect of the mirror when the screen is left or right or up or down for 180 degrees. The video is still played in the normal sequence after the tumble.
4. Horizontal hold (horizontal synchronization) and vertical hold (vertical synchronization)
In this video, the filter effect can be used to adjust the screen to a tilted screen. The slider adjustment can be used to make the screen to the left or right or up or down, as shown in 7-92. It is a video filter effect that changes over time. Therefore, you can set the Starting Screen to a tilt and the ending screen to a normal one. It may be used in certain movie effects.
5. Image pan)
This video filter effect is a typical video filter effect that changes over time and simulates the camera effect of the camera lens. For example, to highlight a certain part of the image, you can take a shot from other parts of the image and gradually locate the highlighted focus part, as shown in 7-93. Because it is a simulated camera effect, even static images will produce a strong dynamic and distant perspective effect. Because the resolution of an image is blurred to a certain extent, it cannot truly reach a closer-to-closer view. You can use this video filter to design scroll subtitles for overlapping clips.
In the source screen on the left of the image Pan Setting dialog box, you can set the position and size of the fragment box. Notice the white blocks on the four corners of the two source images. You can use the left mouse button to adjust the position and size of the input and output images, or the top (top) in the lower left corner) in the left, width, and height text boxes, enter a size value that matches the actual screen output to define the position and size of the screen. When the mouse pointer is near the four corners of the source image, the pointer turns into a finger shape. In this case, you can use the drag method to adjust the size of the input or output boxes. When the mouse pointer is in the middle of the adjusted input or output box, the pointer is changed to a hand shape. In this case, you can use the drag method to adjust the position of the output image box.
6. Resize (resize)
The filter effect of this video can change the size of the original image. If several video filter effects are applied to one clip at the same time, other video filter effects will become invalid, that is, when the original screen has no video filter effect.
7. Roll)
In this video, you can select one of the top (up), bottom (down), left (left), and right (right) directions, move the screen to the top, bottom, left, and right directions (usually called scrolling.
7.3.13 Video video filter effect group
There are three video filter effects in the Video video filter effect group.
1. Broadcast colors (propagation color)
In this video, the filter effect changes the pixel color value so that the clip can be correctly displayed on the TV. The computer uses different combinations of red, green, and blue colors to display other colors. Video devices such as televisions use different synthetic signals to display colors. A home video device cannot generate a signal greater than a certain range, and the computer color can easily exceed this range. The signal amplitude is measured in IRE, and the maximum possible transmission amplitude is 120ire. You can use the broadcast Colors Effect to reduce the brightness or saturation of the Computer colors to a safe value. 2. Field interpolation (field interpolation)
In this video, the filter effect can use the average effect between scans to interpolation the scanning line lost when the image is captured. If the screen flashes badly during the output debugging of a full-screen movie, you can apply the video filter effect to make up for this shortcoming)
This video filter reduces the vertical frequency of the video and enables the image to be used on the delimiter scan settings (such as NTSC video. For example, an image with very fine horizontal lines may experience annoying flashes during video playback. Reduce interlace, and reduce the flicker.
7.3.14 QuickTime video filter effect group
There is only one video filter effect in the QuickTime video filter effect group.
1. Quicktime
If QuickTime 4 or later is installed, premiere will provide this video filter effect. You can use the same method as the application premiere to apply this effect. However, you must adjust this effect in a QuickTime dialog box. This dialog box appears when you first apply this effect or click setup in the effect controls panel, as shown in 7. For more details about this effect, run QuickTime player and refer to online QuickTime player help or apple technical support.