matlab - convert pixel coordinates to map coordinates

Question

I have an image A of dimension p x q. If I know the UTM coordinate of A(1,1) and A(p,q) and pixel size in meters.

How to convert the pixel coordinates to map coordinates in MATLAB?

Answer 1

Xsize = (1:p)*PixelSizeInMeter+UTM_x_onA11;
Ysize = (1:q)*PixelSizeInMeter+UTM_y_onA11;
figure;
surface(Xsize,Ysize,A);

现在您可以使用Xsize和绘制地图Ysize。由于 UTM 是一个笛卡尔网格，生活非常简单：获取正确数量的元素，乘以网格大小并添加下角的坐标以将绘图移动到正确的位置。