diff --git a/tech/gradiant_vectors.wiki b/tech/gradiant_vectors.wiki
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+= Gradiant Vectors =
+
+A gradiant vector is an array with one cell corresponding to each pixel in an
+image, with each cell containing a [[vector]]
diff --git a/tech/graphics.wiki b/tech/graphics.wiki
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+++ b/tech/graphics.wiki
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 Computer graphics is the field focusing on making a computer generate an image.
 
+== Image processing ==
+
+* [[gradiant_vectors]]
+
 == User interfaces ==
 
 Also see ISO 9241-11: Guidance on usability (98) and