Now, my workflow was going to be apply my Warp Stabilizer in Premier Pro before doing color correction. In some shots I will in deed need to try to recuperate some details the highlights. “Third: I have some footage that I will bring to a colorist for color correction/grading. “Second, if I edit and then export my shots in Annimation format will it convert to RGB, will it keep YUV ?”
If that goes above 100, your footage is YUV. You can uncheck Chroma, then you’ll have a luminance waveform monitor. In the panel menu flyout (the arrow and four lines icon at the upper right corner), make sure it’s set to YC Waveform. Open the reference monitor (Window > Reference Monitor). “First, where do I find in Premiere Pro what my footage is (RGB or YUV) ?” RenderBreak Blog – What I’m thinking when my workstation’s thinkingĬreative Cow Forum Host: Live & Stage Events Motion Graphics, Widescreen Events, Presentation Design, and Consulting Any YUV effects that pull down the highlights should be applied before RGB effects in the effects control panel if they are placed afterwards, you won’t have recoverable detail. This doesn’t result in visible data loss unless you try to recover the highlights. In general, you don’t have to worry about whether effects process YUV or RGB, other than being careful about values over 100 IRE being clipped to white. Most image processing has to be performed in RGB because there’s no way of doing the same underlying math directly in YUV. A significant advantage of YUV is chroma sub-sampling: since the eye is more sensitive to changes in brightness than it is to changes in color, you can throw away half of the color information (4:2:2) without compromising visual quality too much.īut YUV is really an alternate way of representing RGB data. The advantage of processing in YUV, then, is avoiding the possible clipping and quantization from imperfect YUV/RGB transformations. Many cameras think in YUV for acquisition, and many video file formats also use a YUV model. YUV can be transformed to RGB losslessly when using floating point, but for integer RGB formats (8 bits per channel or 16 bits per channel), some clipping (lost detail in overbright highlights or ultradeep shadows) or quantization (rounding errors that slightly alter pixel values) can occur. We should technically be saying Y’CbCr for digital component video.) (YUV is a technical term that describes a specific color system today it is nearly always mis-used as I have above to refer to a system that stores luminance separately from chrominance. Many cameras store their output natively as YUV, wherein the brightness of a pixel (the Y channel) is processed and stored separately from its color (the U and V channels). In RGB, brightness and color are co-mingled across the red, green and blue channels. “What are the advantages in working in YUV ?”
0 kommentar(er)
