Lung CT image cannot convert to grayscale image and binary

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muzaiyanah ahmad supian
编辑： KALYAN ACHARJYA 2019-9-24
i need your favour regards why my image cannot convert to grayscale? other image can process with the grayscale code. Attache is my picture

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KALYAN ACHARJYA
KALYAN ACHARJYA 2019-9-24
编辑：KALYAN ACHARJYA 2019-9-24
im=imread('image.jpeg');
im_gray=rgb2gray(im);
The attached image is jpeg format, is it? May be the input image in dicom format, in such case use dicomread. If so, read using dicomread, then apply rgb2gray, or see the other option here (dicom to gray)
Good Luck!

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