filtering. Disabling smoothing will use the nearest neighbor
algorithm.
+@vindex image-transform-smoothing
If this property is not specified, @code{create-image} will use the
-@code{image-transform-smoothing} user option to say whether scaling
+@code{image-transform-smoothing} user option to say whether smoothing
should be done or not. This option can be @code{nil} (no smoothing),
@code{t} (use smoothing) or a predicate function that's called with
the image object as the only parameter, and should return either
@end example
@end defun
-@vindex image-scaling-factor
+@vindex image-scaling-factor, and automatic image scaling
Images are automatically scaled when created based on the
@code{image-scaling-factor} variable. The value is either a floating
point number (where numbers higher than 1 means to increase the size
and lower means to shrink the size), or the symbol @code{auto}, which
-will compute a scaling factor based on the font pixel size.
+will compute a scaling factor based on the font pixel size. @xref{Image
+Descriptors}.
@node Showing Images
@subsection Showing Images