Color image with values from 0 to 1

I have a color image that is read as a double when I load it to Matlab. When I try to visualize it using imshow all I see is white, since my image has values higher than 1 (max=35.8501 and min=23.4284). Does anyone knows how I can see the image, maintaining the color?

Thanks!

[KSSV]

Attach that typical image...

Answer 1

[Jan]

How is your color image defined? Color information is stored either by using doubles in the range [0, 1], or as unsigned integers in the range [0, intmax] for 8 or 16 bits.

I cannot guess what a color for the value 35.8501 might be and cannot suggest a method, which "maintains the color". What color is "35.8501"?

Perhaps a normalization helps:

high = max(Img(:));
low  = min(Img(:))
RGB  = (Img - low) / (high - low);

[turningpoint]

My image(Ic) is in shades of red. It is read as a double, but the values are not between 0 and 1.

whos Ic

Name        Size              Bytes  Class     Attributes

Ic        240x320            614400  double

[Jan]

How did you save the image? How do you know that it is red?