Projection image correction method and projection device
A technology for projecting images and projection devices, which is applied in the direction of using the image reproducer, image communication, and picture replicator of the projection device, can solve the problem that the projection device cannot automatically perform the correction of the projection image offset from the projection screen, and achieves the improvement of intelligence. Effect
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[0042] In order to make the object, technical solution and advantages of the present invention more clear and definite, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0043] The present invention provides a projection image correction method, such as figure 2 As shown, the method includes the following steps:
[0044] S1. Projecting a calibration image with calibration markers at four corners on a projection screen.
[0045] An image is projected on the projection screen, and the preset coordinate values of the calibration mark points displayed when the image is projected on the projection screen are acquired.
[0046] In order to obtain the calibration mark points in the projection image, it is necessary to set up the projection device in advanc...
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