User manual COMPRO Y-C

[. . . ] [Examples are shown later in this guide. ] In other words, better separation of the Y and C signals results in a clearer, sharper picture with brighter and more accurate color. Benefits of Y/C Separation Incomplete separation of the Y and C signals results in Cross-Color Artifact and Cross-Luminance phenomena. Among them, 2D and 3D Y/C separation algorithms have been widely adopted. These algorithms are superior to the simple comb filters found on most TV sets today. Some versions of VideoMate TV incorporate the Y/C separation chip to process Y/C separation and noise reduction. [. . . ] This mode is recommended when you have a strong video signal and are watching programs with lots of detail, such as financial programs or news. However, 3D Y/C separation algorithm is only available in NTSC system. Custom Mode The video enthusiast can control every nuance of the Y/C separation chip in Custom Mode. When you choose this mode, a dialog window will appear and let you fine tune to your satisfaction. The graph in middle is updated as you move the slider bars so you can better understand the effects of your adjustments. Pressing the Default button restores the settings in this dialog, so feel free to explore and experiment. First, select your desired "Y/C Separation Mode. " Then you can fine-tune the parameters relating to the selected mode. 4 Y/C Separation Mode First, you must choose among the three modes. 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" described above. 2D+Noise Reduction Mode: This is the same as "Noise Reduction Mode" described above. Here, you can adjust the Noise Reduction Threshold. Note Here, "noise" is defined as the ratio of changing luminance or chrominance signal strength. 3D Y/C separation algorithm is only available in NTSC system. Y and C Signal Settings Regardless of which mode you choose, you can always adjust the Y Signal Output Correction and C Signal Delay settings, which fine-tune how the signals are separated. Y Signal Output Correction Use Y Signal Correction: Checking this box lets you modify the Y signal output correction algorithm. You can adjust the following two parameters to have better result on the video. Aperture Compensation Level: Adjusting aperture compensation level can sharpen the edges of objects in the video. Y Peaking Filter: Adjusting Y peaking filter can brighten the picture in the video. If set incorrectly, you may see darker pictures. C Signal Delay Depending on your local TV broadcaster, there are minute differences in the delay of C signal relative to the Y signal. The result will be more accurate separation of the Y and C signals. Motion Detection Threshold If you choose 2D+3D Mode in Y/C Separation Mode, VideoMate TV automatically switches between 2D and 3D separation. 5 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. Y Noise: Adjusting this value will set the luminance change threshold for activating Noise Reduction Mode. [. . . ] Also, the line between the black and white bars shows the vertical or horizontal dot lines color as known as the Cross-Luminance phenomenon. After Y/C separation 7 Summary The Y/C Separation process brings superior quality of video into your life. When combined with ComproPVR deinterlacing technology, you get sharper pictures with more vivid and accurate colors. Give you eyes a treat and experiment a bit the Y/C separation settings. Copyright © 2001-2004. [. . . ]