  In this paper, we propose a new texture descriptor, completed local
derivative pattern (CLDP). In contrast to completed local binary pattern
(CLBP), which involves only local differences at each scale, CLDP encodes the
directional variation of the local differences of two scales as a complementary
component to local patterns in CLBP. The new component in CLDP, with regarded
as the directional derivative pattern, reflects the directional smoothness of
local textures without increasing computation complexity. Experimental results
on the Outex database show that CLDP, as a uni-scale pattern, outperforms
uni-scale state-of-the-art texture descriptors on texture classification and
has comparable performance with multi-scale texture descriptors.
