How to write a 16 bit image with a drawing rectangle in a folder

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Jhilam Mukherjee 2018-6-22

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https://ww2.mathworks.cn/matlabcentral/answers/406981-how-to-write-a-16-bit-image-with-a-drawing-rectangle-in-a-folder

评论： Jhilam Mukherjee 2018-6-22

I am working with a 16 bit DICOM Image whose size is 512*512. I want to draw a rectangle at 250,375 positions with length and width 50,50 respectively. I am capable to draw rectangle on that particular position. But, I am incapable to save the image with the rectangle. Is it possible to write the image with rectangle.

I=dicomread('F:\img1.dcm'); figure,imshow(X, []); hold on; title('16 bit image.', 'FontSize', 10); rectangle('Position', [250,375,100,100],... 'EdgeColor','r', 'LineWidth', 3); imwrite(X,'C:\Users\Jhilam\Desktop\code\myfile.png','WriteMode','append');

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Answer 1

Swarnava Pramanik 2018-6-22

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Hi Jhilam,

As per your question you can save the image with the rectangle drawn at a specific coordinate using the “saveas” command. Here is a small code snippet to do that:

info = dicominfo('CT-MONO2-16-ankle.dcm');
Y = dicomread(info);
a = figure();
imshow(Y,[]);
hold on; 
title('16 bit image.', 'FontSize', 10); 
rectangle('Position', [250,375,100,100], 'EdgeColor','r', 'LineWidth', 3);
saveas(a,'dcmFile2.png')