\subsection{Brightness/Contrast}%
\label{sub:brightness_contrast}
+\begin{figure}[htpb]
+ \centering
+ \includegraphics[width=0.6\linewidth]{brightness.png}
+ \caption{How it works Brightness and Contrast}
+ \label{fig:brightness}
+\end{figure}
+
To brighten a dark shot, or add light, use this plugin. Do not overuse the effect or you risk degrading your video quality.
The \textit{Brightness} slider moves up or down the values of the entire channel and corresponds to the \textit{Master Offset} of the various grading programs.
The \textit{Contrast} slider expands or narrows the brightness values of the entire channel; corresponds to the use of the \textit{cursors} (small triangles) in the \textit{Histogram} plugin. Clear icons are present to reset its slider to default without affecting others.
Use the effect along with keyframing to brighten a long shot that is dark at the beginning but bright at the end. Generally you will want to change the brightness and contrast about the same amount (for example -- brightness $28$, contrast $26$) so that your original colors are kept intact. This effect is also keyframable (figure~\ref{fig:brightness}).
-\begin{figure}[htpb]
- \centering
- \includegraphics[width=0.6\linewidth]{brightness.png}
- \caption{How it works Brightness and Contrast}
- \label{fig:brightness}
-\end{figure}
-
\subsection{BurningTV}%
\label{sub:burningtv}
\item[Translation search steps] Ideally the search operation would compare the translation block with every other pixel in the translation search radius. To speed this operation up, a subset of the total positions is searched. Then the search area is narrowed and re-scanned by the same number of search steps until the motion is known to $\frac{1}{4}$ pixel accuracy.
\item[Block X, Y] These coordinates determine the center of the translation block based on percentages of the width and height of the image. The center of the block should be part of the image which is visible at all times.
\item[Maximum absolute offset] The amount of motion detected by the motion tracker is unlimited if this is $100$. If it is under $100$ the amount of motion is limited by that percentage of the image size.
- \item[Settling speed] The motion detected between every frame can be accumulated to form an absolute motion vector. If the settling speed is $100$ the absolute vector is added to the next frame. If the settling speed is less than $100$ the absolute vector is downscaled by the settling amount before being added to the next frame.
+ \item[Settling speed] The motion detected between every frame can be accumulated to form an absolute motion vector. Settling speed determines how fast the accumulated translation fades away, and the image resettles to its actual appearance. If the settling speed is 0\% the total absolute vector is added to the next frame. So every frame that is processed accumulates the whole motion of the past. If the settling speed is 100\% the absolute vector is cancelled completely, adding no past translation to the next frame. If the settling speed is intermediate between 0\% and 100\% the absolute vector is downscaled by (100 - settling amount) before being added to the next frame.
\item[Track rotation] Enables rotation operations. The motion tracker tracks rotation in the master layer and adjusts rotation in the target layer.
\item[Rotation block size] For rotation operations a single block is compared to equally sized blocks, each rotated by a different amount. This is the size of the rotation block.
\item[Rotation search radius] This is the maximum angle of rotation from the starting frame the rotation scanner can detect. The rotation scan is from this angle counterclockwise to this angle clockwise. Thus the rotation search radius is half the total range scanned.
\subsection{MotionCV}%
\label{sub:motioncv}
-Motion tracking/stabilization from the community version of \CGG{}. For theory and explanations refer to the \hyperref[sub:motion]{Motion} plugin.
+Extended motion tracking/stabilization from the community version of \CGG{}. For theory and explanations refer to the \hyperref[sub:motion]{Motion} plugin.
\subsection{MotionHV}%
\label{sub:motionhv}
the data.
\item [F\_astats]~\\Shows time domain statistics about audio
frames.
+\item [F\_asubboost]~\\Boost subwoofer frequencies.
\item [F\_atempo]~\\Adjusts audio tempo.
\item [F\_atrim]~\\Pick one continuous section from the input,
drop the rest.
The following is a list of the integrated video plug-ins.
\begin{description}
+\item [F\_addroi]~\\Mark a region of interest in a video frame.
\item [F\_amplify]~\\Amplify changes between successive video
frames.
\item [F\_atadenoise]~\\Apply an Adaptive Temporal Averaging
\item [F\_avgblur]~\\Apply average blur filter.
\item [F\_bbox]~\\Compute bounding box for each frame.
\item [F\_bench]~\\Benchmarks part of a filtergraph.
+\item [F\_bilateral]~\\Apply bilateral filter, spatial smoothing while preserving edges.
\item [F\_bitplaneoise]~\\Measure bit plane noise.
\item [F\_blackdetect]~\\Detect video intervals that are
(almost) black.
settings you are able to change the power and the radius of the
boxblur applied to luma, chroma and alpha.
\item [F\_bwdif]~\\Deinterlaces the input image.
+\item [F\_cas]~\\Apply Contrast Adaptive Sharpen filter to video.
\item [F\_chromakey]~\\Turns a certain color into
transparency. Operates on YUV colors.
\item [F\_ciescope]~\\Video CIE scope.
\item [F\_cropdetect]~\\Auto-detect crop size.
\item [F\_curves]~\\Adjust components curves.
\item [F\_datascope]~\\Video data analysis.
+\item [F\_dblur]~\\Apply Directional blur filter.
\item [F\_dctdnoiz]~\\Denoise frames using $2D DCT$.
\item [F\_deband]~\\Debands video.
\item [F\_deblock]~\\Deblocks video.
\item [F\_fspp]~\\Applies Fast Simple Post-processing filter.
\item [F\_gblur]~\\Apply Gaussian Blur filter.
\item [F\_gradfun]~\\Debands video quickly using gradients.
+\item [F\_gradients]~\\Draws a transparent gradient.
\item [F\_graphmonitor]~\\Show various filtergraph stats.
\item [F\_greyedge]~\\Estimates scene illumination by grey
edge assumption.
\item [F\_mandelbrot]~\\Render a Mandelbrot fractal.
\item [F\_mcdeint]~\\Applies motion compensating
deinterlacing.
+\item [F\_median]~\\Pick median pixel from rectangle defined by radius.
\item [F\_mestimate]~\\Generate motion vectors.
\item [F\_mpdecimate]~\\Remove near-duplicate frames.
\item [F\_mptestsrc]~\\Generate various test pattern.
\item [F\_perms]~\\Set permissions for the output video frame.
\item [F\_perspective]~\\Corrects the perspective of video.
\item [F\_phase]~\\Phases shift fields.
+\item [F\_photosensitivity]~\\Filter out photosensitive epilepsy seizure-inducing flashes.
\item [F\_pixscope]~\\Pixel data analysis for checking color
and levels. It will display sample values of color channels.
\item [F\_pp]~\\Filters video using libpostproc.
\item [F\_sab]~\\Applies shape adaptive blur.
\item [F\_scale]~\\Scale the input video size and/or convert
the image format.
+\item [F\_scdet]~\\Detect video scene change.
+\item [F\_scroll]~\\Scroll input video horizontally and/or vertically by constant speed.
\item [F\_separatefields]~\\Split input video frames into
fields.
\item [F\_setparams]~\\Force field, or color property for the
\item [F\_showpalette]~\\Display frame palette.
\item [F\_shuffleframes]~\\Shuffles video frames.
\item [F\_shuffleplanes]~\\Shuffles video planes.
+\item [F\_sierpinski]~\\Generate a Sierpinski carpet/triangle fractal, and randomly pan around.
\item [F\_signalstats]~\\Separates statistics from video
analysis.
\item [F\_smartblur]~\\Blurs the input video without impacting
\item [F\_tblend]~\\Blend successive frames.
\item [F\_testsrc]~\\Generate test pattern.
\item [F\_testsrc2]~\\Generate another test pattern.
+\item [F\_thistogram]~\\Compute and draw a color distribution histogram for the input video across time.
\item [F\_tile]~\\Tile several successive frames together.
\item [F\_tinterlace]~\\Performs temporal field interlacing.
\item [F\_tlut2]~\\Compute and apply a lookup table from 2
successive frames.
+\item [F\_tmedian]~\\Pick median pixels from successive frames.
\item [F\_tmix]~\\Mix successive video frames.
\item [F\_transpose]~\\Transposes input video.
\item [F\_unsharp]~\\Sharpen or blur the input videlo.
+\item [F\_untile]~\\Untile a frame into a sequence of frames.
\item [F\_uspp]~\\Applies Ultra Simple/Slow Post-processing
filter.
+\item [F\_v360]~\\Convert 360 videos between various formats.
\item [F\_vaguedenoiser]~\\Applies a Wavelet based Denoiser.
\item [F\_vectorscope]~\\Video vectorscope.
\item [F\_vflip]~\\Flips the input video vertically.
\item [F\_weave]~\\Weaves input video fields into frames.
\item [F\_xbr]~\\Scales the input using $xBR$ algorithm.
\item [F\_yadif]~\\Deinterlaces the input image.
+\item [F\_yaepblur]~\\Yet another edge preserving blur filter.
\item [F\_yuvtestsrc]~\\Generate YUV test pattern.
\item [F\_zoompan]~\\Applies Zoom \& Pan effect.
\end{description}
projects / goodguy / cin-manual-latex.git / blobdiff