Commit 3c640e29 authored by Xue Fuqiao's avatar Xue Fuqiao
Browse files

Add an index for edge-detection algorithms.

* doc/lispref/display.texi (Image Descriptors): Add an index for edge-detection algorithms.
parent fdab3d0b
2013-10-27 Xue Fuqiao <xfq.free@gmail.com>
* display.texi (Image Descriptors): Add an index for edge-detection algorithms.
2013-10-26 Xue Fuqiao <xfq.free@gmail.com>
* display.texi (Fringe Indicators): Add indexes for fringe indicators.
......
......@@ -4132,6 +4132,7 @@ Here are the possibilities for @var{height}:
@table @asis
@item @code{(+ @var{n})}
@c FIXME: Add an index for "step"? --xfq
This means to use a font that is @var{n} steps larger. A ``step'' is
defined by the set of available fonts---specifically, those that match
what was otherwise specified for this text, in all attributes except
......@@ -4412,6 +4413,7 @@ sometimes consider this useful for displaying the image for a
``disabled'' button.
@item (edge-detection :matrix @var{matrix} :color-adjust @var{adjust})
@cindex edge detection, images
Specifies a general edge-detection algorithm. @var{matrix} must be
either a nine-element list or a nine-element vector of numbers. A pixel
at position @math{x/y} in the transformed image is computed from
......
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment