Lets you set the number of times the image will be blurred. This will increase the edge of the visible image. Reduces the transparent (black) portion of the Chroma Key matte. This will reduce the edge of the visible image. ![]() Increases the transparent (black) portion of the Chroma Key matte. Opens the Colour Picker window where you can select a colour from the palette or use the Dropper tool to select a colour directly from your image-see Selecting a Colour in a Drawing. ![]() Lets you enter the RGBA values for the colour to extract from your image. You can see all the options available in the Chroma-Keying properties. To obtain a better result than just extracting the raw colour, you can adjust some parameters such as the contour blurriness and the matte size. To cut the background colour from your image, you will need to use a Cutter node. ![]() The Chroma-Keying node will create an alpha channel that can be seen in the Camera view in the Matte Render mode. The Chroma-Keying node MUST be connected to a bitmap image. For example, if you have a series of bitmap images with a character filmed on a green or blue screen, you can use this node to create an alpha channel based on the screen colour and cut it out from your image sequence. The Chroma-Keying effect lets you create an alpha channel (transparency zone) for a bitmap image or image sequence.
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