How to display MR image of type double with Matlab ?

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MMSAAH
MMSAAH 2018-5-17
评论： Majid Farzaneh 2018-5-17
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.

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回答（1 个）

Majid Farzaneh
Majid Farzaneh 2018-5-17
编辑：Majid Farzaneh 2018-5-17
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 个评论
MMSAAH
MMSAAH 2018-5-17
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 2018-5-17
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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