I have 83 ct dicom series image and I want to remove patient table from these image.for this purpose I write the following code in the MATLAB software:
a = dicomread('E:\dicom\44.dcm');
b=double(a);
sample=a(50:100,250:300);
background=mean(mean(sample));
for i=1:512;
for j=1:512;
if i>385;
b(i,j)=background;
end
end
end
image=dicomwrite(b,uint16(b),'44.dcm');
after I run this code patient table remove from my image but image contrast is unacceptable.
how to adjust image contrast with matlab?
please help me.
Any help would be much appreciated. Thanks.
The following link might be helpful:
https://www.mathworks.com/help/images/examples/contrast-enhancement-techniques.html?requestedDomain=www.mathworks.com
Dear Dr Islam
thank you so much for your answer.
I think dicomwrite code make disortion in my image structure.
dear Dr Barbara Anne Kreilkamp
thank you for your attention
I want to eliminate patient table from my ct dicom image such that the image matrix do not change and the processed images have a identical matrix with initial images..
the images have a 512x512 matrix.
Dear Milad,
It is really not clear about your question. Can you be more apecific about your requirement?
1. Are you processing the image?
2. Or just want to remove the patient table details from the 2D image or want to nullify the DICOM attributes related to Patient table?
- Manjunath
Dear Milad,
Is it about patient table vibration which, in turn, introduces artifacts in your images?
If it is about physical patient table information removal from the image I suggest a more complex alghoritm. Just background removal is not enough. You can use various approaches (the simple ones such as HE, AHE or more complex ones such as morphological operations, filters).
You can read our paper ROBUST SKULL STRIPPING SEGMENTATION BASED ON IRRATIONAL MASK FOR MAGNETIC RESONANCE BRAIN IMAGES in JOURNAL OF DIGITAL IMAGING. 2015, DOI: 10.1007/s10278-015-9776-6
Dear Milad,
I have done this. The table has been removed without affecting another part in the image. I did it using Matlab with DICOM CT images. We may discuss more detail via email. My email: [email protected].
dear dr Manjunath K N
sorry for delay in responding
only i need to remove patient table from ct image.
dear Dr Luminita Moraru
I want to use dicom image for monte carlo simulation in radiotherapy with beamnrc/dosxyznrc code.
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