A filter method to offset projection distortion of building curtain wall
A projection and curtain wall technology, applied in the field of image projection processing, can solve problems such as image or video distortion, screen image distortion, unacceptable, etc., and achieve fast and effective distortion and counteract aliasing effects
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[0030] The present invention will be further described below in conjunction with the embodiments and with reference to the accompanying drawings.
[0031] In this embodiment, a filter algorithm for offsetting projection distortion of building curtain walls, see figure 1 , for the first and last lines of vertical resolution, there will be no projection distortion of the building curtain wall, which can be copied directly. For the image pixels on the line in between, the projection distortion of the building curtain wall will inevitably occur due to the angle of the projector, then first It should find out which projection area bisector the line is in, and then convert the image pixel data according to the color values of the borders on both sides of the area, combined with the proportion of the line in the bisector line segment. This embodiment automatically calculates the anti-distortion image of the curtain wall of the building through specific parameters, finally offsets t...
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