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@@ -29,6 +29,8 @@ image processors:
pdp_abs absolute value
pdp_add adds two images
pdp_and bitwize and
+pdp_array2grey convert pd array to greyscale image
+pdp_grey2array convert greyscale image to pd array
pdp_bitdepth set bit depth
pdp_bitmask apply a bit mask
pdp_bq spatial biquad filter