Panasonic AV-HS400AE Operating Instructions Manual

Contents

Panasonic AV-HS400AE Operating Instructions Manual Manual pdf 34 page image

343. Basic operations3-3-6. Adjusting the chroma keyThese steps are taken to adjust the chroma key definition.Before proceeding with the adjustments, select “Chroma” as theType item setting in “3-3-1. Selecting the key type.”The signal for the chroma key is created using a specific colourtone as a reference.For instance, the background colour is detected from the image of aperson who is standing in front of a specific background colour, thekey signal is created, and a different background is combined.This unit employs an area system which is designated using arectangular frame. The colour of the pixels inside the area whichhave been averaged is used as the reference colour of the chromakey (key reference), and the maximum deviation from the averagevalue is used as the radius of the chroma key oval. Chroma keysfaithful to the chroma space sample (area C in the figure) can begenerated.YHueSat RadiusChromaHue RadiusOval-shaped chroma key Executing auto samplingThe chroma component is sampled by specifying the screen area.1 Press the [FUNC] button to light its indicator, and press the [CHR KEY] button to display the CHR KEYmenu.2 Turn [F1] to display the Auto sub menu, and turn [F] to set On using the Marker item.Even when a setting other than “Chroma” has been selected by the Type item in “3-3-1. Selecting the keytype,” “Chroma” will still be automatically selected.Auto Marker Aspect Sample↓1/3 On 0.0 StartOff −50.00|+50.003 The sample marker is displayed on the preview screen.Select the area to be sampled using the positioner, rotary encoder [Z] and Aspect item (turn [F3] to adjust).Positioner:Specify the X coordinate and Y coordinate of the sample marker.Rotary encoder [Z]:Adjust the size of the sample marker.When rotary encoder [Z] is held down, the X and Y coordinates of the sample marker as well as the sizeof the marker are returned to their initial values.Aspect:Change the aspect ratio of the sample marker.4 When the [F] switch or the rotary encoder [Z] is pressed, the hue component of the area selected by themarker is sampled.5 On completion of the sampling, the sampled values are reflected on the Adjust1 and Adjust sub menus,and a chroma key combined image is output to preview. (Set the key preview function to ON.)