is this the proper way to convert your axis and graphs to square microns?

Question

Chanille 2023-3-5

0
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https://ww2.mathworks.cn/matlabcentral/answers/1923445-is-this-the-proper-way-to-convert-your-axis-and-graphs-to-square-microns

评论： Voss 2023-3-6

So I want to plot the graph in units of square microns, which I tried to do by calculating the area of each zone in square microns. I tried multiplying the area of each zone in pixels by the conversion factor, which i looked up and I think the conversion factor is the square of the pixel size in microns.

Assuming that the pixel size is 1 square micron:

% Define the pixel size in square microns

pixelSize = 1;

for m = 1 : numfiles

...

% Calculate the radius of each zone in pixels

radius = linspace(0, maxDistance, numZones+1);

area = diff(pi*radius.^2); % Area of each zone in pixels

% Convert area from pixels to square microns

area = area * pixelSize;

...

% Plot the profile

subplot(2, 2, 3);

plot(area, profileCounts, 'LineWidth', 2);

xlabel('Area (\mum^2)', 'FontSize', fontSize);

ylabel('Counts', 'FontSize', fontSize);

title('Counts/', 'FontSize', fontSize);

grid on;

end

So I tried to calculate the area of each zone in pixels using the diff function, which I THINK computes the differences between adjacent elements of a vector then I convert the area from pixels to square microns by multiplying it by the pixel size pixelSize. Is this correct?