how to my indexed imgage as png file

[cdata cmap]=imread("pc.gif");

How i save this image and view this?

Also i save this image as png file?

How it is possible?

Answer 1

[Azzi Abdelmalek]

[cdata cmap]=imread('pc.gif');
imshow(cdata,cmap)%display your image
imwrite(cdata,cmap,'pc.png')

[Anusha]

Error using imwrite (line 459) Can't open file "pc" for writing. You may not have write permission.

[Anusha]

i clear the error.. got output thank you