Chroma key green how to#

Increase Gain and check what areas are being replaced.ġ4. Increase Soft to soften the matte edges.ġ3.

Increase Center until background halo is gone.ġ0. Use L Tol to key out any lighter or darker areas of the background, if necessary.ĩ. Tweak H Tol to remove remaining background.ħ. Simply activate it, and you will see an eye dropper tool appear. Once your video is selected, in the toolbar to the right side of the Motionbox editor you will see a toggle button to enable Chroma Keying. Check for holes in the foreground by enabling Show Alpha, and increasing the S Low parameter until any holes in the foreground are gone. Once you've shot your video and understand how green screens work, simply upload it to Motionbox. Sample the background color with the eyedropper, and use H Tol to key the background color out.ĥ. Set H Tol to 0 to see the whole background color.Ĥ. In effect mode, select Chroma Key from the fast menu in the Foreground parameter.ģ. The Chroma Key plugin is a welcomed addition to Paint.NET's effects palette, as it simplifies the user's job when it comes to removing or replacing green or blue colors in images. Apply a 3d warp effect to the clip you want to key.Ģ. Seeing the keyed and unkeyed regions in black-and-white is handy for spotting minor keying errors that may not be so obvious otherwise.This is what they're teaching in the Advanced Effects class using 3d warp to chroma key:ġ. If Fading or Feathering is applied you may see semi-transparent regions on the resulting frame, which will display as a greyish color. This lets you see precisely which regions are being keyed out (black) and which are left untouched (white). When enabled, the 'alpha' channel or transparency layer of the previewed clip is displayed in black-and-white. To assist in fine-tuning the key, the Show Alpha Mask option is provided. Note that this option can be relatively slow if you choose a large Feathering value.įor best results, the background to be removed must be a very consistent color (e.g., without highlights or shadows), and the background color must not appear on actors or objects which you don't want to remove. This is useful if you have some leftover green pixels on the keyed image, if you soften the edges then these pixels will not be as noticeable when you substitute in a new background. The Feathering parameter is used to apply a 'soft edge' or alpha channel blur to the foreground image. One gallon of Virtual Green® Chroma Key Paint covers approximately 300 square feet (27. when the Threshold slider is full, the Fading Slider will have No effect). This is useful when you need to apply a green screen effect to a video with a bright white or dark black background.Īs the Threshold value increases, the Fading slider will have less and less of an effect (i.e. However, for best results it may be necessary to manually choose one of the other options.

Selecting Auto in the Based on: dropdown will attempt to automatically switch between Color and Color + Brightness based on the chosen color. Selecting Color + Brightness in the Based on: dropdown will remove color in the video based on how closely it matches the color and brightness of the chosen color. Rosco Chroma Key Paints are manufactured to provide the high luminance values and color saturation for keying. Selecting Color in the Based on: dropdown will remove color in the video based on how closely it matches the chosen color. chroma key, chroma key green screen, chroma key kinemaster, chroma key in premiere pro, chroma key effects, chroma key video, chroma key app, chroma key alig. Change the Threshold and Fading values to adjust how similar a color has to be to the selected color for it to be removed. Alternatively, you can use the color picker control on the left side of the dialog to choose a color more precisely. You can do this when the cursor hovering over it changes to an eyedropper icon. To configure the effect, with the Video Effects dialog open, click on the clip preview to choose the color to remove. The background can then be removed with the green screen video effect to reveal another clip underneath which will provide the new background.įollow the instructions in Video Effects to add a Green Screen video effect. The feature enables users to remove a specific colour from an image or video, allowing the removed portion of the clip to be replaced with a different visual. For example, to show an actor standing in front of a computer generated background, the footage of the actor can be shot against a green screen. Chroma key is a special effect achieved by the use of green or blue screen, chroma key green or blue paint.

Chroma key green how to#

How To - Blue or Green Screen Chroma Keying Also known as 'blue screen' or 'chroma keying', green screen is the process of removing a selected color from an image.