Improved Multi-Scale Local Difference Features for Off-Line Handwritten Signature Verification

In the present work, we propose the multi-scale Local Difference Features (LDF) for improving handwritten signature verification. This descriptor is similar to local binary patterns, since it highlights intensity differences between a pixel and its neighbors. Presently, we propose a multi-scale implementation of LDF in which, neighboring pixels are taken on several radiuses. This helps to adapt LD...