在R中绘制图像顶部的点 [英] plotting points on top of image in R

问题描述

这些天我广泛使用R来分散情节。
大多数绘图都与图像处理有关，
最近我在考虑在图像上绘制散点图。

These days I am extensively using R to scatter plots. Most of the plotting is concerned with image processing, Recently I was thinking of plotting the scatter plots over an image.

例如，我想要这样的东西，
背景需要用我的图像填充。具有特定的规模。
而且我应该能够在这张图片的上方绘制积分（坐标）......

For example, I want something like this, The background needs to be filled with my image. With a particular scale. And I should be able to draw points (co-ordinates) on top of this image ...

这在R中是否可行？
如果没有，你们知道其他任何使这个变得容易的工具......

Is this possible in R? If not, do you guys know of any other tool that makes this easy ...

推荐答案

我是不是100％肯定你的想法，但我想首先你要加载并在R中绘制一个图像。你可以用 ReadImages 包来做到这一点：

I'm not 100% sure what you have in mind, but I think first you want to load and plot an image in R. You can do that with the ReadImages package:

picture <- read.jpeg("avatar.jpg")
plot(picture)

然后你可以在它上面做一个散点图：

Then you can do a scatter plot on top of it:

points(runif(50,0, 128), runif(50,0,128))

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