Application of Video Pr flexible led screenocessor in Full C
The video processor is the full time witness and iconic device for the birth, growth and maturity of the full color LED display. Today, LED specific video processing equipment is gradually maturing in this process. The advantages and disadvantages of the LED video processor directly affect the display effect of LED display.
In general, LED video processors are LED specific video processors. The task it needs to accomplish, generally speaking, is to convert image signals from external sources (such as Blu-ray DVDs, computers, HD playback boxes, etc.) into signals that LED displays can accept. In this process, LED video processors generally need to complete the following processes:
1. Resolution specification conversion: Generally speaking, image signal sources (such as Blu-ray DVD, computer, HD player, etc.) provide signal resolutions with fixed specification (refer to VESA, ITU, SMPTE, etc.), while LED displays modular splicing display makes its resolution almost any value. The video processor converts a wide variety of signal resolutions into the actual physical display resolution of the LED display.
2. Color space conversion: LED displays have a wide color gamut, while most image signals have a small color space (such as NTSC). In order to make the LED display have an excellent image display effect, and need to convert the color space.
3. Bit depth improvement: The gray level of the current LED display has been increased to 16 bits and 17 bits, but the input signal source is mostly only 8 bits. Therefore, by the step of the era of high definition display, processing technology of 10 bit or even 12 bit in video processors the application has become an irresistible trend.
4. Zoom: During the conversion process of resolution specification, the image needs to be scaled, and the full image can be displayed on the LED screen whether the resolution is increased or decreased.
5. Image processing and enhancement technology: Digital image processing technology has developed from the 1920s to now, have emerged a large number of patented technologies. For example, DCDi, ACC2, ACM3D and other Emmy winning Faroudja laboratories a series of patented technologies. These techniques undoubtedly make the visual effect of the image greatly improved.
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