How to convert a .txt file to image format ?

Hello

I have a .txt file that contains the values of pixels i think and if you open the file and scoll down 750 lines you also get a x,y values I dont know how to convert the text file into any image format.

You can find the file in the link below.

https://drive.google.com/file/d/1SYyVpohC3sjlLYjp39sUJM1uMh-DlBHX/view?usp=sharing

Thank you in advance.

[Image Analyst]

Can you attach it here?

[Aravind Poolla]

https://drive.google.com/file/d/1 SYyVpohC3sjlLYjp39 SUJM1 uMh-DIBHX/View?usp=sharing

[Walter Roberson]

I see a little header and the rest is thousands of lines of floating point zeros with no nonzero values.

[Aravind Poolla]

Ok can you guide me how can I implement them

[Image Analyst]

Again, "Can you attach it here?" Why didn't you? Is it over 5 MB? Make it EASY for us to help you, not hard.

[Aravind Poolla]

Hey sorry for the inconvenience its like 65 mb so i have tried adding file that is the reason I added a link for it . I will add the link in this comment again

Link for the .txt file

Answer 1

[Walter Roberson]

fid = fopen('TXT file.txt', 'r');
datacell = textscan(fid, '%f%f%f', 'headerlines', 762);
fclose(fid);

X = datacell{1};
Y = datacell{2};
V = datacell{3};

F = scatteredInterpolant(X, Y, V);
Nx = numel(uniquetol(X));
Ny = numel(uniquetol(Y));

minx = min(X);
maxx = max(X);
miny = min(Y);
maxy = max(Y);

xvec = linspace(minx, maxx, Nx);
yvec = linspace(miny, maxy, Ny);
[XG, YG] = ndgrid(xvec, yvec);
VG = F(XG, YG);

imagesc([minx, maxx], [miny, maxy], VG.');
set(gca,'YDir','normal')

[Walter Roberson]

It would not surprise me if you could simply take the values (V) and reshape() them instead of doing a scatteredInterpolant.

[Aravind Poolla]

Hey thank you so much it worked