how to preserve RGB values of an image while making it gray image

2 次查看（过去 30 天）
ASHWIN JOSHY
ASHWIN JOSHY 2022-5-2
编辑： DGM 2022-5-2
I need to convert an RGB image to gray image, but after processing i want the image back to RGB,
So how can i preserve the RGB values of an image
I am using
RGBImage=imread('RGBImage.tiff')
to read the image

请先登录，再回答此问题。

采纳的回答

DGM
DGM 2022-5-2
编辑：DGM 2022-5-2
You don't. When you convert a color image to grayscale, you are discarding the color information. It's gone.
If you want to keep the color image, simply keep the color image and make a grayscale copy.
rgbpict = imread('peppers.png');
graypict = rgb2gray(rgbpict); % BT601 luma
If instead you intend to do some operations on the color image by using the grayscale image as a proxy, I'd have to know what kind of operation you're trying to do. If that's your intent, you'll have to describe the task.

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Orange 的更多信息

标签

产品


版本

R2021a

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by