convert to grayscale image

Hi,

I need a grayscale image to input into a function I want to create mesh on, problem is the image i have at the moment is a niftii (used in mri machines), how do i convert it into a grayscale? It (niftii) image is a matrix essentially with values [0 1] range, i believe you need [0 255] for grayscale. Any help to convert this to grayscale?

Thank You

[Muhammad Usman Saleem]

According to my understanding.

You have binary image and you want to convert it to gray scale.

It may deal us to resampling of 2 bit image to 8 bit image?

[Kuifeng]

do yo have an example matrix to show here?

Answer 1

[Star Strider]

If the range is [0,1] it is most likely continuous, not binary. See if:

grayImage = uint8(niftii_image*255);

does what you want.

[Star Strider]

‘... values are between 0 to 1 in that matrix, so it can be 0.5 0.6 etc. Anything in between.’

My code should do what you want.

Answer 2

[Saurabh Sakpal]

Hi original poster again, Sorry values are between 0 to 1 in that matrix, so it can be 0.5 0.6 etc. Anything in between