How to display MR image of type double with Matlab ?

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Hello, I want to display MR image of type double with [384,384] as size. I used
imshow(inputImage,[])
But it does change the gray value intensity of the inputImage.
Any help please ?
Thanks.

Answers (1)

Majid Farzaneh
Majid Farzaneh on 17 May 2018
Edited: Majid Farzaneh on 17 May 2018
Hello, You can use this for resize image as [384,384]:
I=imresize(inputImage,[384,384]);
imshow(I);
but if your image is double you can use this to make it grayscale:
I=uint8(inputImage);
imshow(I);
if your original image is rgb you can use this to make it gray:
I=rgb2gray(inputImage);
  2 Comments
MMSAAH
MMSAAH on 17 May 2018
Thank you for your reply.
I've tried all of your suggestions but this still change the gray value intensity of the inputImage. Because when comparing the image shown by matlab with the image shown by ITKsnap, I find a very big difference between two images.
Majid Farzaneh
Majid Farzaneh on 17 May 2018
Your welcome. In the gray-scale mode of images, pixel intensity values must be between 0-255. If your pixel values of double image has a range out of 0-255, normalize your image first, then use uint8. You can use this for normalization:
I= (inputImage-min(min(inputImage))) / (max(max(inputImage)) - min(min(inputImage)));
I=uint8(I);
imshow(I);

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