6Chapter 1 Applying Effects to Video and SoundSetting the Chroma Key[CHROMA KEY]Chroma keying is a function for removing a specified colorrange from one image and keying another image to the range.The following diagram shows an example of the chromakey.Key is specifiedby color onwhich the cursoris placed, andremoved.The [CHROMA KEY] menu is used to create a chroma key.[CHROMA KEY] menuThe menu appears when the CHROMA KEY (chroma key)button is pressed in the PATTERN area ( page Vol.1-14)or the pattern of No. 62 is selected.ME preview is automatically chosen, and the video tobe keyed with the chroma key cursor is output from thepreview output connector.KEY COLOROFFSETCOLORSLOPE 1 K LEVELC-AREA MONO L1CANCEL 128COLOR C SLICESLICE 10CROPEFFECTS OFF8 2553 600BORDER WHITE1281280POS.EVENTCHROMA KEY 1ME TIME PATTERN INT00 E 1:00 F 0062 WHTX 128Z 196Y 128R=- - - G=- - - B=- - -Shows the selectedcolor.Shows the selected number:1, 2, or 3.Scroll the screen to display.[KEY]Up to three colors to be removed from an image can bestored.Rotary 1 Rotary 2 Rotary 3 Rotary 4 Rotary 51-3 0-255 0-15 0-255COLORKEY 1 255K LEVELSLICE 1128 SLOPE 18After selecting the number using the rotary 2 control, movethe chroma key cursor on the preview image to the color(blue for example) to be removed using the joystick, andpress the key.The numeric values of the stored color are displayed for R,G, and B, respectively, in the menu. (“---” appears when thecolor is not stored.)The color can be stored any number of times by pressingthe key. However, the color data is overwritten each timeit is stored.To cancel the stored color, enter the selected number usingthe numeric keys while holding down the SHIFT key.To set the chroma key in detailThe color density and range can be specified to designatemore precise keying.Set [SLICE] of the selected color in the range of 0 to 255using the rotary 3 control.The slice is set to specify the color density (saturation) inthe area to be removed. For example, if you specify blueusing the joystick, the setting value can be increased toremove only blue darker than the specified blue.Set [SLOPE] of the selected color in the range of 0 to 15using the rotary 4 control.The slope is set to specify the range (hue) of the color tobe removed. For example, if you specify blue using thejoystick, the setting value can be increased to remove onlyblue closest to the specified blue.Set [K LEVEL] (transparency level of the key) in the rangeof 0 to 255 using the rotary 5 control. NOTEThe value set with the rotary 3 control is saved for each of thethree key colors, while the value set with the rotary 5 control isapplied to all stored colors.[COLOR CANCEL]The appearance of color blur can be diminished in theboundary area of the key.Rotary 1 Rotary 2 Rotary 3 Rotary 4 Rotary 50-255 0-255 0-3 0-15OFFSETCOLOR 128CANCEL 6MONO LC SLICE128 C-AREA 3Set [OFFSET] (offset from the key) in the range of [0] to[255] using the rotary 2 control.Set [C SLICE] (cancel slice) in the range of [0] to [255]using the rotary 3 control.