Info
This question is locked. Vuélvala a abrir para editarla o responderla.
How to incorporate scatter function so that the lines of the image don't print on top of one another
2 visualizaciones (últimos 30 días)
Mostrar comentarios más antiguos
I have this code to take x.y,z coordinates to make an x-ray image. The lines of the image just print on top of one another. I want to use the scatter function so that the lines of the image make a full picture. How and where would I add this?
Here is my code:
data = readmatrix('C:\Users\devineh\Chest_XRay_Raw_Data.txt');
% Extract x, y, z coordinates and grayscale values
x = data(:,1);
y = data(:,2);
z = data(:,3); % If needed, otherwise ignore
grayscale = data(:,4);
%Normalize points
x = round(x - min(x) + 1);
y = round(y - min(y) + 1);
%Find bounds
x_range = min(x):max(x);
y_range = min(y):max(y);
% Initialize the image matrix
image = zeros(length(y_range), length(x_range));
% Populate the image matrix with grayscale values
for i = 1:length(x)
x_idx = find(x_range == x(i));
y_idx = find(y_range == y(i));
image(y_idx, x_idx) = grayscale(i);
end
%normalize image
image = mat2gray(image);
% Display the image
imshow(image);
title('Reconstructed Image from Raw Data');
2 comentarios
Image Analyst
el 29 de Jun. de 2024
If you have any more questions, then attach your data ('C:\Users\devineh\Chest_XRay_Raw_Data.txt') with the paperclip icon after you read this:
Respuestas (1)
Walter Roberson
el 28 de Jun. de 2024
You are not going to be able to do what you want. Your data points are not at integer locations relative to each other; they are 0.17 apart in X.
1 comentario
Walter Roberson
el 29 de Jun. de 2024
One possibility would be to use something like
N = 256;
x = data(:,1);
y = data(:,2);
grayscale = data(:,4);
[minx, maxx] = bounds(x);
[miny, maxy] = bounds(y);
binx = discretize(x, linspace(minx, maxx, N));
biny = discretize(y, linspace(miny, maxy, N));
for i = 1 : length(binx)
gray_image(binx(i), biny(i)) = grayscale(i));
end
This question is locked.
Ver también
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!