How to deal with PS in orthographic drawing area

Step 1, obtaining the original measurement data of the measured area; Secondly, determine the ground grid range of orthographic image; Thirdly, flower plucking detection: flower plucking detection is performed on each grid point on the corrected image of the currently processed aerial image, and the process is as follows: 30 1, and the projection light direction is determined; 302. Drawing judgment: judging whether there are other grid points in the original image that are the same as the pixel points corresponding to the current detection point along the determined projection light; If yes, it means that the current detection point is a drawing point; On the other hand, it shows that the current detection point is not a "flower pulling" point; 4. Image correction: according to the tensile test result, correct the currently processed aerial image. The invention has the advantages of simple steps, reasonable design, high efficiency and good use effect, and can solve the problems of low efficiency, poor use effect and the like existing in the traditional orthographic image stretching processing method.

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