why color image is getting displayed as gray image

i have a color image, when i display it shows as gray image, when i check the size also it shows as d = 1;

 Img = imread('Afternoon Rain.bmp');
 figure; imshow(Img);

how and why does it come like that...

Answer 1

[Stephen23]

Indexed images also require the use of the map output of imread, which you will find explained in the documentation, along with complete working examples which I only slightly altered for you here:

>> [X,map] = imread('Afternoon Rain.bmp');
>> Y = ind2rgb(X,map);
>> image(Y)

which creates this figure:

You can check if the image is indexed by checking the map output: if it is empty then the image is not indexed. Alternatively you can use an external program to know if an image is indexed: for example this is the image information that GIMP shows, the fourth line clearly states that the colorspace of this image is indexed:

[Elysi Cochin]

thank you so much...