How to plot picese-wise linear transformation graph?

2 次查看（过去 30 天）

SeokWon CHOI 2023-10-6

回答：檮杌 2023-10-6

Ig = rgb2gray(imread('example.jpg'));

A = 50;

B = 180;

In = (A < Ig) & (Ig < B);

I want to plot "In" graph like this

So, on the x-axis there are values from 0 to 255, and on the y-axis I want the values between A and B to rise like a peak.

Dyuman Joshi 2023-10-6

What's the relation of reading of the image to getting this graph/plot? The graph/plot can be obtained without the image data.

檮杌 2023-10-6

Would this work for you?

X = rgb2gray(imread('peppers.png'));

idx = X > 50 & X < 180;

X_transformed = uint8(double(X).*idx);

montage({X, X_transformed});

MATLAB Mathematics Graph and Network Algorithms

在 Help Center 和 File Exchange 中查找有关 Graph and Network Algorithms 的更多信息

R2023b

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

Translated by