Datavideo SE-1200MU Instruction Manual

Also see for SE-1200MU: Quick start guide Instruction manual

Contents

Datavideo SE-1200MU Instruction Manual Manual pdf 42 page image

42In the diagram, you will see that we recommend a minimum of four lights and we keep the subject morethan 1m away from the backdrop. It is always easier to get more even lighting if the subject is fartheraway from the backdrop (no shadows). The foreground lighting on the subject will also vary accordingto the effect that you are looking for.8.2 Chroma MatteThis matte sets the center of colourrange that will be used for keying.The Chroma Matte parameters and thevalues are shown along the bottom of thedisplay below.The Hue can be changed by clicking onand dragging the crosshair around thecolour palette with the mouse pointer.The Hue value can also be finely adjustedby clicking the Hue degree value in the lower bar and entering the required number.Certain colour hues can be found at certain angles on the colour palette. For example, Red is 0 degrees (12o’clock position), Green is around 120 degrees (4 o’clock position) and Blue is approx. 240 degrees (8o’clock position). Secondary colours such as, Yellow at 60 degrees, Cyan at 180 degrees and Violet at 300degrees.The Luma value relates to how bright or dark the selected key colour or hue is. The Luma value can beadjusted by clicking the Luma Function value and entering a new value. The Bgnd Suppress or BackgroundSuppress Control is used to remove the Luma (brightness) of the background from the final image. If theChroma Key Output is showing Light Edges, then the Bgnd suppress can be used to suppress anybackground Luma that is showing through on these edges.The Opacity setting affects how transparent the foreground Chroma matte is.