- #CHROMA KEY LIVE PREVIEW HOW TO#
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Sometimes it may be necessary to apply some color corrections before the chroma keyer can do a proper job. Make sure to choose a background that matches the final background of your video production the most. In the filter setup you have the option to add a sample background to check if your chromakey works well. this is helpful if your chroma key backdrop is not wide enough to fill the complete video frame.Ĭhecking The Result On A Sample Background If your video image shows some unwanted pixels at the edges you can crop them away with the “Quick Mask” option. The “Drop Shadow” option will allow you to control the offset of the drop shadow in “X” and “Y” direction as well as the “Opacity” and the “Blur”.Īpplying A Quick Mask To Cover Unwanted Content a weather map) you may want to have a drop shadow on this wall to create the illusion of depth. If your final background will be a wall of any kind (e.g. It makes sense to set the Despill Color to the same tone that the inserted background will look like in theĪdding A Drop Shadow To Create Illusion Of Depth You can setup the “Despill Amount” (how much the backdrop color should be changed) and the “Despill Color” (the color which is used to replace the spilled backdrop color). This view shows you in a blinking manner where the backdrop spilled onto the actor and what the despill feature will change. Finally you may switch to the “Despill Check” view with the “Mode” popup. The “Feather” value let you widen or shrink the feather area.ħ. If there are unwanted artefacts you need to go back to step 2 and refine your settings. This may not be a bad thing because this is exactly what is desirable for hairs. The blinking red dots tells you that this particular pixel has some transparency with it. If you switch to the “Feather Check” view with the “Mode” popup you can see wether your key is good or has still pixels that aren’t keyed out correctly. Please use the “Mode” popup menu to switch to the “Lightness Setup” view and clamp the reds in the histogram like you did with the “Saturation”.Ħ. The next step is to specify the lightness. You can do so either with the parameters or drag them in the histogram.ĥ. Use the “Saturation Min” and “Saturation Max” parameter to narrow down the selection of your color range. Please use the “Mode” popup menu to switch to the “Saturation Setup” view.Ĥ. After you selected the hue of your backdrop color you need to specify the saturation. You can do so either with the parameters or drag them in the histogram.ģ. Now you can either click with the mouse cursor into the filter preview and select the backdrop color you want to key directly in the video or adjust the “Hue Min” and “Hue Max” values to select the backdrop color. The maximum peak should be your backdrop color.Ģ. The histogram tells you how much of a certain color is seen in the video. A rainbow bar with a histogram should appear at the bottom of the filter preview area. Switch to the “Hue Setup” view by selecting it in the “Mode” popup menu.
#CHROMA KEY LIVE PREVIEW HOW TO#
This is a step by step procedure on how to setup the Chroma Keying Basic Filter:ġ. *In order to let the Auto Adjust work properly please step out of the green screen so that the video frame just shows the backdrop. By clicking on the “Start” button the filter will analyse the current video image and try to find optimal values for the current content. There is an Auto Adjust option available. The Chroma Keying Basic Filter is a quick and easy solution. Navigate to the fx dropdown menu and activate the Chroma Keying Basic filter. To learn more about how to work and set up a Green Screen including correct lighting refer to Chroma Keying. This page explains how to combine a video and background by adding transparency to the video using the Chroma Keying Basic Filter of mimoLive™.
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