diff --git a/src/axes.jl b/src/axes.jl
index f2298292a..974f34b88 100644
--- a/src/axes.jl
+++ b/src/axes.jl
@@ -677,7 +677,6 @@ end
 # we return (continuous_value, discrete_index)
 function discrete_value!(axis::Axis, dv)
     cv_idx = get(axis[:discrete_map], dv, -1)
-    # @show axis[:discrete_map], axis[:discrete_values], dv
     if cv_idx == -1
         ex = axis[:extrema]
         cv = NaNMath.max(0.5, ex.emax + 1.0)
diff --git a/src/recipes.jl b/src/recipes.jl
index 593079cd5..e6dbb5453 100644
--- a/src/recipes.jl
+++ b/src/recipes.jl
@@ -1380,7 +1380,7 @@ function clamp_greys!(mat::AMat{<:Gray})
 end
 
 @recipe function f(mat::AMat{<:Gray})
-    n, m = map(a -> 0:(a.stop), axes(mat))
+    n, m = map(a -> range(0.5, stop = a.stop + 0.5), axes(mat))
 
     if is_seriestype_supported(:image)
         seriestype := :image
@@ -1399,7 +1399,7 @@ end
 
 # images - colors
 @recipe function f(mat::AMat{T}) where {T<:Colorant}
-    n, m = map(a -> 0:(a.stop), axes(mat))
+    n, m = map(a -> range(0.5, stop = a.stop + 0.5), axes(mat))
 
     if is_seriestype_supported(:image)
         seriestype := :image