如何在MATLAB中将彩色图像转换为灰度图像？ [英] How can I convert a color image to grayscale in MATLAB?

问题描述

我想在计算机视觉中实现一个算法，我想尝试一组图片。图片都是彩色的，但我不想处理。

I am trying to implement an algorithm in computer vision and I want to try it on a set of pictures. The pictures are all in color, but I don't want to deal with that. I want to convert them to grayscale which is enough for testing the algorithm.

如何将彩色图像转换为灰度图？

How can I convert a color image to grayscale?

我正在阅读它：

x = imread('bla.jpg');

有任何参数我可以添加到 imread 将其读为灰度？在读取之后，是否有任何方式将 x 更改为灰度？

Is there any argument I can add to imread to read it as grayscale? Is there any way I change x to grayscale after reading it?

推荐答案

使用 rgb2gray 来去除色相和饱和度（即转换为灰度）。 文档

Use rgb2gray to strip hue and saturation (ie, convert to grayscale). Documentation

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