R - 像素矩阵的图像？ [英] R - image of a pixel matrix?

问题描述

你如何从R中的矩阵中制作图像？

How would you you make an image from a matrix in R?

矩阵值对应于图像上的像素强度（虽然我只对0,1值白色或黑色感兴趣。），而列和行编号对应到图像上的垂直和水平位置。

Matrix values would correspond to pixel intensity on image (although I am just interested in 0,1 values white or black at the moment.), while column and row numbers correspond to vertical and horizontal location on the image.

通过制作图像我的意思是在屏幕上显示它并将其保存为jpg。

By make an image I mean display it on the screen and save it as a jpg.

推荐答案

您可以使用图片在屏幕上最简单地显示它：

You can display it on the screen easiest using 'image':

m = matrix(runif(100),10,10)
par(mar=c(0, 0, 0, 0))
image(m, useRaster=TRUE, axes=FALSE)

您还可以查看光栅包...

You can also have a look at the raster package...

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