python pyvisa与visa区别 vf和python

目录

vfx调用方法

变速moviepy.video.fx.accel_decel

黑白特效moviepy.video.fx.blackwhite

闪烁特效moviepy.video.fx.blink

色彩增幅moviepy.video.fx.colorx

裁剪moviepy.video.fx.crop

尺寸均匀moviepy.video.fx.even_size(剪裁视频像素为偶数)

淡入淡出moviepy.video.fx.fadein\fadeout

冷冻特效moviepy.video.fx.freeze_region\freeze

视频剪辑的伽玛校正moviepy.video.fx.gamma_corr

局部模糊特效moviepy.video.fx.headblur

色彩反转moviepy.video.fx.invert_colors

循环moviepy.video.fx.loop

亮度/对比度调整moviepy.video.fx.lum_contrast

结尾逐渐淡入使自己可循环moviepy.video.fx.make_loopable

页边距moviepy.video.fx.margin

遮罩moviepy.video.fx.mask_and\mask_or\mask_color

镜像moviepy.video.fx.mirror_x\mirror_y

油画特效moviepy.video.fx.painting

缩放moviepy.video.fx.resize

旋转moviepy.video.fx.rotate

滚动moviepy.video.fx.scroll

倍速moviepy.video.fx.speedx

倒放moviepy.video.fx.time_mirror

正播倒播自动合成moviepy.video.fx.time_symmetrize

moviepy.video.fx.supersample

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vfx调用方法

方法一：

from moviepy.editor import VideoFileClip, vfx

video = VideoFileClip('video.mp4', audio=False)

factor = 2  # 倍速播放倍数
final_duration = 1  # 倍速播放持续时间
newclip = (video.fx(vfx.speedx, factor, final_duration))
newclip.write_videofile('1.mp4')

方法二：

newclip = vfx.speedx(video, factor, final_duration)
newclip.write_videofile('1.mp4')

变速moviepy.video.fx.accel_decel

# def accel_decel(clip, new_duration=None, abruptness=1.0, soonness=1.0):
# 參數：
#     new_duration:最后视频时长，默认是clip原时长
#     abruptness:加速时间
#     soonness:加速持续时间

newclip = vfx.accel_decel(video, new_duration=None, abruptness=10, soonness=10)

黑白特效moviepy.video.fx.blackwhite

# def blackwhite(clip, RGB=None, preserve_luminosity=True):
# 參數：
#     RGB:可选"CRT_phosphor"，一组特殊值：[0.2125, 0.7154, 0.0721]
#     preserve_luminosity:是否保持亮度，即preserve_luminosity是否与RGB的和保持为1

newclip = vfx.blackwhite(video)

闪烁特效moviepy.video.fx.blink

# def blink(clip, d_on, d_off): 
# 參數：
#     仅在composite clips中生效
#     d_on:每d_on秒显示
#     d_off:每s_off秒消失

video = VideoFileClip('video.mp4').set_opacity(.5)
newclip = vfx.blink(video, d_on=2, d_off=3)

色彩增幅moviepy.video.fx.colorx

# def colorx(clip, factor):
# 參數：
#     factor:增幅系数

video = VideoFileClip('demo_video.mp4').set_opacity(.5)
newclip = vfx.colorx(video, factor=.8)

裁剪moviepy.video.fx.crop

# def crop(clip, x1=None, y1=None, x2=None, y2=None, width=None, height=None, x_center=None, y_center=None,):
# 參數：
#     可以任意参数值组合完成裁剪...
#     x1、y1表示裁剪区域的左上角坐标
#     x2、y2表示裁剪区域的右下角坐标
#     width、height表示裁剪区域宽度、高度
#     x_center、y_center表示裁剪区域中心坐标
#     （所有的坐标都以像素为单位，值为浮点数）

尺寸均匀moviepy.video.fx.even_size(剪裁视频像素为偶数)

def even_size(clip):  # 裁剪剪辑，使尺寸均匀

淡入淡出moviepy.video.fx.fadein\fadeout

# def fadein(clip, duration, initial_color=None):  # 淡入
# 參數：
#     duration：变化时长
#     initial_color：初始颜色（介于0和1之间的数字）
# 
# def fadeout(clip, duration, final_color=None):  # 淡出
# 參數：
#     duration：变化时长
#     final_color：终止颜色（介于0和1之间的数字）

newclip = vfx.fadein(video, duration=5, initial_color=.5)
newclip = vfx.fadeout(video, duration=3, final_color=.5)

冷冻特效moviepy.video.fx.freeze_region\freeze

# 局部冷冻特效
# def freeze_region(clip, t=0, region=None, outside_region=None, mask=None):
# 參數：
#     t:冻结时刻
#     region:冻结区域
#     outside_region:非冻结区域
#     mask:

# 冷冻特效
# def freeze(clip, t=0, freeze_duration=None, total_duration=None, padding_end=0):
# 參數：
#     t:冻结时刻
#     freeze_duration:冻结持续时间
#     total_duration:总持续时间
#     padding_end:

视频剪辑的伽玛校正moviepy.video.fx.gamma_corr

def gamma_corr(clip, gamma):
參數：
    gamma:CRT的影像亮度呈现线性

局部模糊特效moviepy.video.fx.headblur

# def headblur(clip, fx, fy, r_zone, r_blur=None):
# 參數：
#     fx、fy:模糊原点坐标
#     r_zone:模糊半径
#     r_blur:模糊强度

色彩反转moviepy.video.fx.invert_colors

# def invert_colors(clip):

循环moviepy.video.fx.loop

# def loop(clip, n=None, duration=None):
# 參數：
#     n:循环次数
#     duration:持续时间

亮度/对比度调整moviepy.video.fx.lum_contrast

# def lum_contrast(clip, lum=0, contrast=0, contrast_thr=127):
# 參數：
#     lum:亮度
#     contrast:对比度
#     contrast_thr:

结尾逐渐淡入使自己可循环moviepy.video.fx.make_loopable

# def make_loopable(clip, cross):
# 參數：
#     cross:淡入持续时间

页边距moviepy.video.fx.margin

# def margin(clip, mar=None, left=0, right=0, top=0, bottom=0, color=(0, 0, 0), opacity=1.0):
# 參數：
#     mar:外边框的宽度像素，mar指定了有效值，left、right、top、bottom设定不起作用
#     left,right,top,bottom:边框左、右、顶和底的宽度
#     color:边框颜色
#     opacity:边框透明度，0完全透明，1完全不透明

遮罩moviepy.video.fx.mask_and\mask_or\mask_color

#  def mask_and(clip, other_clip):

# def mask_or(clip, other_clip): 

# def mask_color(clip, color=None, thr=0, s=1):

镜像moviepy.video.fx.mirror_x\mirror_y

#  def mirror_x(clip, apply_to="mask"):
 
#  def mirror_y(clip, apply_to="mask"):

油画特效moviepy.video.fx.painting

# def painting(clip, saturation=1.4, black=0.006):

缩放moviepy.video.fx.resize

# def resize(clip, newsize=None, height=None, width=None, apply_to_mask=True):

旋转moviepy.video.fx.rotate

# def rotate(clip, angle, unit="deg", resample="bicubic", expand=True):

滚动moviepy.video.fx.scroll

# def scroll(clip, w=None, h=None, x_speed=0, y_speed=0, x_start=0, y_start=0, apply_to="mask"):

倍速moviepy.video.fx.speedx

# def speedx(clip, factor=None, final_duration=None):

倒放moviepy.video.fx.time_mirror

# def time_mirror(self):

正播倒播自动合成moviepy.video.fx.time_symmetrize

#  def time_symmetrize(clip):

moviepy.video.fx.supersample

#  def supersample(clip, d, nframes):