Imagemagick具有4（x，y）坐标的倾斜图像 [英] Imagemagick skew image with 4 (x,y) coordinates

问题描述

我有4个（x，y）坐标，我希望在下面给出地图图像。

I have 4 (x,y) coordinates between which I want place image as example given below.

整个图像必须放在这个区域内而不进行裁剪。

The whole image must be placed within this area without cropping.

推荐答案

使用此800x600气球：

Using this 800x600 balloon:

< a href =https://i.stack.imgur.com/pGnUc.jpg =nofollow noreferrer>

您可以像这样使用Perspective Distort：

convert balloon.jpg -matte -virtual-pixel transparent  \
  -distort Perspective '0,0,50,0 0,599,100,599 800,0,750,100 800,600,500,500' result.png

参数中基本上有4对点，即

There are basically 4 pairs of points in the parameters,i.e.

Pt1X,Pt1Y,Pt1NewX,Pt1NewY Pt2X,Pt2Y,Pt2NewX,Pt2NewY Pt3X,Pt3Y,Pt3NewX,Pt3NewY Pt4X,Pt4Y,Pt4NewX,Pt4NewY

因此上面的命令移动点 0,0 到 50,0 并将点 0,599 移动到 100,599 依此类推。

So the command above moves point 0,0 to 50,0 and moves point 0,599 to 100,599 and so on.

我已贴上标签每个红色的点，并绘制每个绿色移动的路径。

I have labelled each of the points in red and drawn the path along which each one has moved in green.

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