A video combiner converts analog video from two separate asynchronous sources into a common, synchronized output format, and then combines the video or blends video in one of a variety of methods, as configured by the user. The EZblend™ family of combiners provide advance functionality at a reasonable price. Two versions are available: EZblend™ 121 provides (1) channel of (2) inputs combined into (1) output. EZblend™ 221 provides (2) channels of (2) inputs combined into (1) output.

Alpha Blend: Two video sources are mixed per a user-defined ratio. This is the most common type of video blending.

RGB Keying: Two video sources are mixed, based on the RGB content of one of the video sources. Up to (4) different levels of mixing are allowed based on If-Then-Else logic statements for RGB content.

HSV Keying: two video sources are mixed, based on the calculated HSV value of each RGB pixel in one of the video sources.

Stereo Mix: two video sources are synchronized, and then output as alternating fields. This is used for creating active stereo outputs from separate left and right sources. The output is synchronized to one of the inputs. 120 Hz operation is possible, at up to a 165 MPixel/sec rate.

Windowing: A window is defined within a background region, where the window may exhibit either the foreground or a miz of foreground and background.

Split Screen: A portion of the display (top or left) displays one image or a portion of an image, while the other portion (bottom or right) displays the other image, or portion of an image.

Dynamic Alpha: real-time application of alpha data that is digitally encoded with one of the input video channels

Dynamic Contrast: use of one of the video channels as a real-time pixel-by-pixel contrast adjustment.

Other combining techniques are possible.

Our EZsetup™ software allows you to logically set up EZblend™ for your unique application.

After definition of the incoming video formats and desired output format, the user defines the input video areas of interest, output video size, and combination function (mix or window) via a graphical interface (see right).

With EZblend™, the output resolution and timing is completely independent of input timings. You define the area-of-interest (AOI) within each input, the mapping of the AOI onto the output resolution, and the output content definition (how to combine the output streams).

Additional inputs define the RGB key, HSV key, or alpha mix. For more information on the EZblend™ video mixer, click here to download brochure, email our technical sales staff or call us at (636) 300-5164.