diff options
| -rw-r--r-- | xsig/src/signature.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/xsig/src/signature.cpp b/xsig/src/signature.cpp index 9daf131..1f0ec28 100644 --- a/xsig/src/signature.cpp +++ b/xsig/src/signature.cpp @@ -270,6 +270,7 @@ signature signature::from_string(std::string &&s) signature signature::from_preprocessed_matrix(cv::Mat *m, const signature_config &cfg) { + if (!m->data) return signature(); signature_priv *p = new signature_priv; p->cfg = cfg; @@ -290,6 +291,7 @@ signature signature::from_preprocessed_matrix(cv::Mat *m, const signature_config signature signature::from_cvmatrix(cv::Mat *m, const signature_config &cfg) { + if (!m->data) return signature(); cv::Mat ma, bw; double sc = 1; switch (m->depth()) |