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Introduction
Compro has always focused on developing products with great picture quality. Some
VideoMate TV models now feature Y/C Separation and digital noise reduction hardware for
unprecedented quality. This manual tells you how to optimize the Y/C separation settings to
the type of TV programs you care most about.
Y/C Separation
Television signals actually contain two signals, Luminance and Chrominance. By convention,
Y represents Luminance and C represents Chrominance. The Y signal describes the
brightness of the picture and C represents the color information. Black and white TV signals
contain only the Y signal. When color TV was introduced many years ago, the Y and C
signals were combined into a composite video signal. This has the advantages of being
compatible with black and white TV set and using less bandwidth. All TV sets must separate
the Y and C signals before presenting a picture.
This is analogous to using a glass prism to separate colors from a beam of white light.
Composite video
or TV signal
Compro
Y/C Separation
User's Guide
Y/C separation
Luminance
(brightness)
Chrominance
(color)
1
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Summary of Contents for COMPRO Y-C
- Page 1 User’s Guide Introduction Compro has always focused on developing products with great picture quality. Some VideoMate TV models now feature Y/C Separation and digital noise reduction hardware for unprecedented quality. This manual tells you how to optimize the Y/C separation settings to the type of TV programs you care most about.
- Page 2 PAL system. Using the Y/C Separation program Compro Y/C Separation program provides three preset profiles that let you quickly adjust the picture to your preferences without knowing the details of Y/C separation. Additionally, TV enthusiasts can configure the Y/C separation settings, in minute detail, to achieve ultimate picture quality.
- Page 3 Note Compro Y/C Separation program is both a standalone program and part of the ComproPVR setup dialogs. The primary dialog in the program lets you choose one of three preset profiles or choose to enter the custom settings dialog. TV Mode This is the standard mode.
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Page 4: Custom Mode
Noise Reduction Mode This setting enables 2D Y/C separation and noise reduction modes. Choose this setting if your TV signal contains is weak or the program contains lots of motion. This mode is recommended for sports and action programs. Detail Mode This mode enables the 3D Y/C separation algorithm. - Page 5 Y/C Separation Mode First, you must choose among the three modes. 2D+3D Mode: This is the same as “TV Mode” described above. Selecting this mode lets you adjust when the Y/C separation chip switches between 2D and 3D separation modes. 3D Only Mode: This is the same as “Detail Mode”...
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Page 6: Signal Status
DY: Adjusting this value will set the luminance change threshold for switching modes. DC: Adjusting this value will set the chrominance change threshold for switching modes. Noise Reduction Threshold If you choose 2D+Noise Reduction Mode in Y/C Separation Mode, here you can change when Noise Reduction Mode is activated. - Page 7 Without Y/C separation In these pictures, the texts should be very clear and sharp. Without Y/C separation, however, the text displays the Cross-Color Artifact phenomenon. Also, the line between the black and white bars shows the vertical or horizontal dot lines color as known as the Cross-Luminance phenomenon.
- Page 8 Y/C separation settings. Copyright © 2001-2004. Compro Technology, Inc. No part of this document may be copied or reproduced in any form or by any means without the prior written consent of Compro Technology, Inc.