NEC WT615 User Manual page 104

Video
Selecting Noise Reduction Level [Noise Reduction]
(not available for RGB, DVI digital, Viewer and LAN; available for TV standard inputs)
Select one of the three levels for reducing video noise: Low, Medium or High.
NOTE: The lower the Noise Reduction level, the better the image quality by way of higher video bandwidth.
Selecting Color Matrix [Color Matrix]
(not available for RGB, DVI digital, Viewer and LAN; available for TV standard inputs)
Select an appropriate color matrix for your input signal, either HDTV or SDTV.
Selecting Interlace or Deinterlace [I/P Converter]
This function allows you to select between "Interlace" and "Deinterlace".
Deinterlace (Auto) ....... The projector automatically determines a still or moving image to display a clear picture. If selecting
Deinterlace (Still) ......... Select when a still image is displayed. When this option is selected for a moving image, jitter or artifacts
Interlace ...................... Select when a moving image is displayed. This will eliminate jitter and artifacts in a moving image.
"Deinterlace (Auto)" causes excess jitter or artifacts, select "Interlace".
can be seen.
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6. Using On-Screen Menu