operate with medical image

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Majid Al-Sirafi
Majid Al-Sirafi 2017년 2월 11일
댓글: Majid Al-Sirafi 2017년 2월 14일
hi everyone
please, how to operate with medical image, such as read, write, change pixel value, etc. by using matlab code
regards,
Majid

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Star Strider
Star Strider 2017년 2월 11일
It depends what your ‘medical image’ is. For most radiography (x-ray, ultrasound, MRI, CT, etc.) images, they are in DICOM format and you would read the images with .dcm file extensions (also termed suffixes) with the dicomread (link) function. If you want to save ‘slices’ of a computerized tomographic file as individual images, save them as uncompressed ‘.jpg’ images, since that is what they are in the DICOM file.
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Walter Roberson
Walter Roberson 2017년 2월 12일
I would not save them as .jpg -- far too much chance that someone would not notice they are intentionally uncompressed and will proceed to helpfully compress them, which damages their value for research (makes the algorithms harder.) I would deliberately save them as some image type that does not use lossy compression such as PNG or TIFF.
DICOM does not mandate any one compression algorithm; it makes several available and provides mechanisms to use additional compression algorithms. Some of the compression algorithms tend to get used more often than others, of course.

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Image Analyst
Image Analyst 2017년 2월 11일
This is too vague. Basically the answer is "you can use MATLAB." Here is how to learn it:
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Majid Al-Sirafi
Majid Al-Sirafi 2017년 2월 14일
Firstly, thabj you dear Walter. the attached is the medical image

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