Edge blending software for projectors software#
(1-2) In terms of geometry positioning, there are two methods in general, external software or built-in image warping/edge blending processor. By comparison, automatic adjustment offers not only higher precision and reliability, but also speedy geometry adjustment, which is convenient and saves time.
Edge blending software for projectors manual#
There are two ways to adjust them, the first one is manual adjustment, which is a knob for Lens Shift, and a ring for Zoom, the second one is automatic adjustment. (1-1) Optical Alignment, adjustment of the Lens Shift and Zoom of lens increases the precision and flexibility of projection locations. Geometry adjustments for seamless edge blending precise geometry adjustment), the second is image consistency (i.e. With them, image blending would be much easier conversely, it would be impossible to overcome certain issues if some of the criteria are not met, such as resolution or lens differences.Īside from calculation for spacing between installations and projection size for stitching, there are two main factors for a successful multi-projection, the first is seamlessness (i.e. This can be considered a priori criteria necessary for a successful multi-projection setup. The best way to achieve parameter consistency such as brightness and color etc., is to choose machines from the same batch of production, with similar parameter configurations. (4) Similar color parameters, pick specific configurations including color temperature and chromaticity coordinates. (3) Similar brightness, machines with near the same hours of use Projection brightness will deteriorate as hours of use increases In order to blend it together, you need to reduce the brightness in addition to matching the image.(2) Same throw ratio and lens with the same focal length range If you have two images side by side and the middle 20% is doubled, obviously that portion is going to be brighter than the rest of your image. The second part of the process involves feathering the images to eliminate the “hot spot” that is guaranteed to occur. This overlapping gives you a larger area to match up which eliminates the hard edge you’d see if you simply placed the two images side by side. Essentially you send the same portion of your image across two projectors. The first is basically just overlapping two images. So, how does edge blending really work? There’s basically two processes. Essentially, this is what edge blending will accomplish. Much like when you paint a wall, you always overlap your strokes to get as even a coverage as possible. When you place two projectors side by side, the human eye will notice the edge, the mismatched colors, and the split or overlap of the images. Simply put, when you have two projectors lined up next to each other creating one solid image, you will never be able to create a seamless edge without edge blending. We have used all three with varying results. There are numerous ways to handle edge blending including software, hardware, and physical applications. We’ve touched on the concept of edge blending before, but have never dived too deeply into the subject matter.Īt it’s basic form, edge blending occurs when you combine (overlap) the edges of two projectors in a multiscreen setup.
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